DATA SH EET
Product specification
File under Integrated Circuits, IC06 December 1990
INTEGRATED CIRCUITS
74HC/HCT4351
8-channel analog
multiplexer/demultiplexer with latch
For a complete data sheet, please also download:
•The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
•The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
December 1990 2
Philips Semiconductors Product specification
8-channel analog
multiplexer/demultiplexer with latch 74HC/HCT4351
FEATURES
•Wide analog input voltage range:
± 5 V
•Low “ON” resistance:
80 Ω(typ.) at VCC −VEE = 4.5 V
70 Ω(typ.) at VCC −VEE = 6.0 V
60 Ω(typ.) at VCC −VEE = 9.0 V
•Logic level translation: to enable 5 V logic to
communicate with ±5 V analog signals
•Typical “break before make” built in
•Address latches provided
•Output capability: non-standard
•ICC category: MSI
GENERAL DESCRIPTION
The 74HC/HCT4351 are high-speed Si-gate CMOS
devices. They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT4351 are 8-channel analog
multiplexers/demultiplexers with three select inputs (S0to
S2), two enable inputs (E1and E2), a latch enable input
(LE), eight independent inputs/outputs (Y0to Y7) and a
common input/output (Z).
With E1LOW and E2is HIGH, one of the eight switches is
selected (low impedance ON-state) by S0to S2. The data
at the select inputs may be latched by using the active
LOW latch enable input (LE). When LE is HIGH the latch
is transparent. When either of the two enable inputs,
E1(active LOW) and E2(active HIGH), is inactive, all 8
analog switches are turned off.
VCC and GND are the supply voltage pins for the digital
control inputs (S0to S2, LE, E1and E2). The VCC to GND
ranges are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT.
The analog inputs/outputs (Y0to Y7, and Z) can swing
between VCC as a positive limit and VEE as a negative
limit.
VCC −VEE may not exceed 10.0 V.
For operation as a digital multiplexer/demultiplexer, VEE is
connected to GND (typically ground).
QUICK REFERENCE DATA
VEE = GND = 0 V; Tamb =25°C; tr=t
f= 6 ns
SYMBOL PARAMETER CONDITIONS TYPICAL UNIT
HC HCT
tPZH / tPZL turn “ON” time E1, E2or Snto Vos CL= 15 pF; RL=1 kΩ; VCC =5 V2735ns
t
PHZ / tPLZ turn “OFF” time E1, E2or Snto Vos 21 23 ns
CIinput capacitance 3.5 3.5 pF
CPD power dissipation capacitance per switch notes 1 and 2 25 25 pF
CSmax. switch capacitance
independent (Y) 5 5 pF
common (Z) 25 25 pF
Notes
1. CPD is used to determine the dynamic power
dissipation (PD in µW):
PD=C
PD × VCC2× fi+∑ {(CL+ CS) × VCC2×fo}
where:
fi= input frequency in MHz
fo= output frequency in MHz
CL= output load capacitance in pF
CS= max. switch capacitance in pF
∑{(CL+ CS) × VCC2×fo} = sum of outputs
VCC = supply voltage in V
2. For HC the condition is VI= GND to VCC
For HCT the condition is VI= GND to VCC − 1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package
Information”
.
December 1990 3
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
PIN DESCRIPTION
PIN NO. SYMBOL NAME AND FUNCTION
4 Z common
3, 14 n.c. not connected
7E1enable input (active LOW)
8E
2enable input (active HIGH)
9V
EE negative supply voltage
10 GND ground (0 V)
11 LE latch enable input (active LOW)
15, 13, 12 S0to S2select inputs
17, 18, 19, 16, 1, 6, 2, 5 Y0to Y7independent inputs/outputs
20 VCC positive supply voltage
Fig.1 Pin configuration. Fig.2 Fig.3 IEC logic symbol.
December 1990 4
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
FUNCTION TABLE
Notes
1. Last selected channel “ON”.
2. Selected channels latched.
3. H = HIGH voltage level
L = LOW voltage level
X = don’t care
↓= HIGH-to-LOW LE transition
APPLICATIONS
•Analog multiplexing and demultiplexing
•Digital multiplexing and demultiplexing
•Signal gating
INPUTS CHANNEL
ON
E1E2LE S2S1S0
H
XX
LX
XX
XX
XX
Xnone
none
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
L
L
H
H
L
H
L
H
Y0
Y1
Y2
Y3
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
L
L
H
H
L
H
L
H
Y4
Y5
Y6
Y7
L
XH
XL
↓X
XX
XX
X(1)
(2)
Fig.4 Functional diagram.
Fig.5 Schematic diagram (one switch).
December 1990 5
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Voltages are referenced to VEE = GND (ground = 0 V)
Note to ratings
1. To avoid drawing VCC current out of terminal Z, when switch current flows in terminals Yn, the voltage drop across
the bidirectional switch must not exceed 0.4 V. If the switch current flows into terminal Z, no VCC current will flow out
of terminals Yn. In this case there is no limit for the voltage drop across the switch, but the voltages at Yn and Z may
not exceed VCC or VEE.
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER MIN. MAX. UNIT CONDITIONS
VCC DC supply voltage −0.5 +11.0 V
±IIK DC digital input diode current 20 mA for VI<−0.5 V or VI>VCC + 0.5 V
±ISK DC switch diode current 20 mA for VS<−0.5 V or VS>VCC + 0.5 V
±ISDC switch current 25 mA for −0.5 V <VS<VCC + 0.5 V
±IEE DC VEE current 20 mA
±ICC; ±IGND DC VCC or GND current 50 mA
Tstg storage temperature range −65 +150 °C
Ptot power dissipation per package for temperature range: −40 to +125 °C
74HC/HCT
plastic DIL 750 mW above +70 °C: derate linearly with 12 mW/K
plastic mini-pack (SO) 500 mW above +70 °C: derate linearly with 8 mW/K
PSpower dissipation per switch 100 mW
SYMBOL PARAMETER 74HC 74HCT UNIT CONDITIONS
min. typ. max. min. typ. max.
VCC DC supply voltage VCC−GND 2.0 5.0 10.0 4.5 5.0 5.5 V see Figs 6 and 7
VCC DC supply voltage VCC−VEE 2.0 5.0 10.0 2.0 5.0 10.0 V see Figs 6 and 7
VIDC input voltage range GND VCC GND VCC V
VSDC switch voltage range VEE VCC VEE VCC V
Tamb operating ambient temperature range −40 +85 −40 +85 °C see DC and AC
CHARACTERISTICS
Tamb operating ambient temperature range −40 +125 −40 +125 °C
tr, tfinput rise and fall times
6.0
1000
500
400
250
6.0 500 ns
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 10.0 V
December 1990 6
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
Fig.6 Guaranteed operating area as a function
of the supply voltages for 74HC4351.
handbook, halfpage
10
8
6
4
2
00246810
V
CC- VEE (V)
VCC - GND
(V)
MBA334
operating area
Fig.7 Guaranteed operating area as a function of
the supply voltages for 74HCT4351.
DC CHARACTERISTICS FOR 74HC/HCT
For 74HC: VCC −GND or VCC −VEE = 2.0, 4.5, 6.0 and 9.0 V
For 74HCT: VCC −GND = 4.5 and 5.5 V; VCC −VEE = 2.0, 4.5, 6.0 and 9.0 V
Notes to DC characteristics
1. At supply voltages (VCC −VEE) approaching 2.0 V, the analog switch ON-resistance becomes extremely non-linear.
There it is recommended that these devices be used to transmit digital signals only, when using these supply
voltages.
2. For test circuit measuring RON see Fig.8.
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC/HCT
VCC
(V) VEE
(V) IS
(µA) Vis VI
+25 −40 to +85 −40 to
+125
min. typ. max. min. max. min. max.
RON ON resistance
(rail) −
100
90
70
−
180
160
130
−
225
200
165
−
270
240
195
Ω
Ω
Ω
Ω
2.0
4.5
6.0
4.5
0
0
0
−4.5
100
1000
1000
1000
VCC
to
VEE
VIN
or
VIL
RON ON resistance
(rail) 150
80
70
60
−
140
120
105
−
175
150
130
−
210
180
160
Ω
Ω
Ω
Ω
2.0
4.5
6.0
4.5
0
0
0
−4.5
100
1000
1000
1000
VEE VIH
or
VIL
RON ON resistance
(rail) 150
90
80
65
−
160
140
120
−
200
175
150
−
240
210
180
Ω
Ω
Ω
Ω
2.0
4.5
6.0
4.5
0
0
0
−4.5
100
1000
1000
1000
VCC VIH
or
VIL
∆RON maximum ∆ ON
resistance
between any two
channels
−
9
8
6
Ω
Ω
Ω
Ω
2.0
4.5
6.0
4.5
0
0
0
−4.5
VCC
to
VEE
VIH
or
VIL
December 1990 7
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
DC CHARACTERISTICS FOR 74HC
Voltages are referenced to GND (ground = 0 V)
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC VCC
(V) VEE
(V) VIOTHER+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
VIH HIGH level input
voltage 1.5
3.15
4.2
6.3
1.2
2.4
3.2
4.7
1.5
3.15
4.2
6.3
1.5
3.15
4.2
6.3
V 2.0
4.5
6.0
9.0
VIL LOW level input
voltage 0.8
2.1
2.8
4.3
0.5
1.35
1.8
2.7
0.5
1.35
1.8
2.7
0.5
1.35
1.8
2.7
V 2.0
4.5
6.0
9.0
±IIinput leakage
current 0.1
0.2 1.0
2.0 1.0
2.0 µA6.0
10.0 0
0VCC
or
GND
±ISanalog switch
OFF-state current
per channel
0.1 1.0 1.0 µA10.0 0V
IH
or
VIL
VS=
VCC −VEE
(see Fig.10)
±ISanalog switch
OFF-state current
all channels
0.4 4.0 4.0 µA10.0 0V
IH
or
VIL
VS=
VCC −VEE
(see Fig.10)
±ISanalog switch
ON-state current 0.4 4.0 4.0 µA10.0 0V
IH
or
VIL
VS=
VCC −VEE
(see Fig.11)
ICC quiescent supply
current 8.0
16.0 80.0
160.0 160.0
320.0 µA6.0
10.0 0
0VCC
or
GND
Vis =V
EE
or VCC;
Vos =V
CC
or VEE
December 1990 8
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr=t
f= 6 ns; CL= 50 pF
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC VCC
(V) VEE
(V) OTHER+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
Vis to Vos
14
5
4
4
60
12
10
8
75
15
13
10
90
18
15
12
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=∞;
CL= 50 pF
(see Fig.17)
tPZH/ tPZL turn “ON” time
E1to Vos
85
31
25
28
300
60
51
55
375
75
64
69
450
90
77
83
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
E2to Vos
85
31
25
25
300
60
51
55
375
75
64
69
450
90
77
83
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
LE to Vos
91
33
26
27
300
60
51
55
375
75
64
69
450
90
77
83
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
Snto Vos
88
32
26
25
300
60
51
50
375
75
64
63
450
90
77
75
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
E1 to Vos
69
25
20
20
250
50
43
40
315
63
54
50
375
75
64
60
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
E2 to Vos
72
26
21
19
250
50
43
40
315
63
54
50
375
75
64
60
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
LE to Vos
83
30
24
26
275
55
47
45
345
69
59
56
415
83
71
68
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
Sn to Vos
80
29
23
24
275
55
47
48
345
69
59
60
415
83
71
72
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
December 1990 9
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
tsu set-up time
Snto LE 60
12
10
18
17
6
5
9
75
15
13
23
90
18
15
27
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
CL= 50 pF
(see Fig.19)
thhold time
Snto LE 5
5
5
5
−8
−3
−2
−4
5
5
5
5
5
5
5
5
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
CL= 50 pF
(see Fig.19)
tWLE minimum pulse
width
HIGH
100
20
17
25
11
1
3
7
125
25
21
31
150
30
26
38
ns 2.0
4.5
6.0
4.5
0
0
0
−4.5
RL=1 kΩ;
CL= 50 pF
(see Fig.19)
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC VCC
(V) VEE
(V) OTHER+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
December 1990 10
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
DC CHARACTERISTICS FOR 74HCT
Voltages are referenced to GND (ground = 0)
Note to HCT types
1. The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given here.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT VCC
(V) VEE
(V) VIOTHER+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
VIH HIGH level input
voltage 2.0 1.6 2.0 2.0 V 4.5
to
5.5
VIL LOW level input
voltage 1.2 0.8 0.8 0.8 V 4.5
to
5.5
±IIinput leakage
current 0.1 1.0 1.0 µA 5.5 0 VCC
or
GND
±ISanalog switch
OFF-state current
per channel
0.1 1.0 1.0 µA10.0 0V
IH
or
VIL
VS=
VCC −VEE
(see
Fig.10)
±ISanalog switch
OFF-state current
all channels
0.4 4.0 4.0 µA10.0 0V
IH
or
VIL
VS=
VCC −VEE
(see
Fig.10)
±ISanalog switch
ON-state current 0.4 4.0 4.0 µA 10.0 0 VIH
or
VIL
VS=
VCC −VEE
(see
Fig.11)
ICC quiescent supply
current 8.0
16.0 80.0
160.0 160.0
320.0 µA 5.5
5.0 0
−5.0 VCC
or
GND
Vis =V
EE
or VCC;
Vos =V
CC
or VEE
∆ICC additional
quiescent supply
current per input
pin for unit load
coefficient is 1
(note 1)
100 360 450 490 µA 4.5
to
5.5
0VCC
−2.1 V other
inputs
at VCC or
GND
INPUT UNIT LOAD COEFFICIENT
E1, E2
Sn
LE
0.50
0.50
1.5
December 1990 11
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr=t
f= 6 ns; CL= 50 pF
SYMBOL PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT VCC
(V) VEE
(V) OTHER+25 −40 to +85 −40 to +125
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
Vis to Vos
6
412
815
10 18
12 ns 4.5
4.5 0
−4.5 RL=∞;
CL= 50 pF
(see Fig.17)
tPZH/ tPZL turn “ON” time
E1to Vos
40
31 75
60 94
75 113
90 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
E2to Vos
35
26 70
50 88
63 105
75 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
LE to Vos
42
37 75
60 94
75 113
90 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPZH/ tPZL turn “ON” time
Snto Vos
39
30 75
60 94
75 113
90 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
E1 to Vos
27
20 55
40 69
50 83
60 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
E2 to Vos
32
26 60
50 75
63 90
75 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
LE to Vos
33
30 60
55 75
69 90
83 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tPHZ/ tPLZ turn “OFF” time
Sn to Vos
33
29 65
55 81
69 98
83 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.18)
tsu set-up time
Snto LE 12
14 6
715
18 18
21 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.19)
thhold time
Snto LE 5
5−1
−25
55
5ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.19)
tWLE minimum
pulse width HIGH 25
25 13
13 31
31 38
38 ns 4.5
4.5 0
−4.5 RL=1 kΩ;
C
L= 50 pF
(see Fig.19)
December 1990 12
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
Fig.8 Test circuit for measuring RON. Fig.9 Typical RON as a function of input voltage
Vis for Vis = 0 to VCC −VEE.
Fig.10 Test circuit for measuring OFF-state current.
Fig.11 Test circuit for measuring ON-state current.
December 1990 13
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
ADDITIONAL AC CHARACTERISTICS FOR 74HC/HCT
Recommended conditions and typical values
GND = 0 V; Tamb =25°C
Notes to AC characteristics
1. Adjust input voltage Vis to 0 dBm level (0 dBm = 1 mW into 600 Ω).
2. Adjust input voltage Vis to 0 dBm level at Vos for 1 MHz (0 dBm = 1 mW into 50 Ω).
Vis is the input voltage at a Yn or Z terminal, whichever is assigned as an input.
Vos is the output voltage at a Yn or Z terminal, whichever is assigned as an output.
SYMBOL PARAMETER typ. UNIT VCC
(V) VEE
(V) Vis(p−p)
(V) CONDITIONS
sine-wave distortion
f = 1 kHz 0.04
0.02 %
%2.25
4.5 −2.25
−4.5 4.0
8.0 RL= 10 kΩ; CL= 50 pF
(see Fig.14)
sine-wave distortion
f = 10 kHz 0.12
0.06 %
%2.25
4.5 −2.25
−4.5 4.0
8.0 RL= 10 kΩ; CL= 50 pF
(see Fig.14)
switch “OFF” signal
feed-through −50
−50 dB
dB 2.25
4.5 −2.25
−4.5 note 1 RL= 600 Ω; CL= 50 pF
(see Figs 12 and 15)
V(p−p) crosstalk voltage between
control and any switch
(peak-to-peak value)
120
220 mV
mV 4.5
4.5 0
−4.5 RL= 600 Ω; CL= 50 pF;
f = 1 MHz (E1, E2or Sn,
square-wave between VCC
and GND, tr=t
f= 6 ns)
(see Fig.16)
fmax minimum frequency response
(−3dB) 160
170 MHz
MHz 2.25
4.5 −2.25
−4.5 note 2 RL=50Ω; CL= 10 pF
(see Figs 13 and 14)
CSmaximum switch capacitance
independent (Y)
common (Z)
5
25 pF
pF
Fig.12 Typical switch “OFF” signal feed-through as a function of frequency.
Test conditions:
VCC = 4.5 V; GND = 0 V; VEE =−4.5 V;
RL=50Ω; Rsource =1 kΩ.
December 1990 14
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
Fig.13 Typical frequency response.
Test conditions:
VCC = 4.5 V; GND = 0 V; VEE =−4.5 V;
RL=50Ω; Rsource =1 kΩ.
Fig.14 Test circuit for measuring sine-wave
distortion and minimum frequency response. Fig.15 Test circuit for measuring switch “OFF”
signal feed-through.
Fig.16 Test circuit for measuring crosstalk between control and any switch.
The crosstalk is defined as follows
(oscilloscope output):
December 1990 15
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
AC WAVEFORMS
Fig.17 Waveforms showing the input (Vis) to output
(Vos) propagation delays. Fig.18 Waveforms showing the turn-ON and
turn-OFF times.
HC : VM= 50%; VI= GND to VCC.
HCT: VM= 1.3 V; VI= GND to 3 V.
Fig.19 Waveforms showing the set-up and hold
times from Sninputs to LE input, and
minimum pulse width of LE.
HC : VM= 50%; VI= GND to VCC.
HCT: VM= 1.3 V; VI= GND to 3 V.
December 1990 16
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
TEST CIRCUIT AND WAVEFORMS
Fig.20 Test circuit for measuring AC performance.
Conditions
TEST SWITCH Vis
tPZH VEE VCC
tPZL VCC VEE
tPHZ VEE VCC
tPLZ VCC VEE
others open pulse
FAMILY AMPLITUDE VM
tr; tf
fmax;
PULSE WIDTH OTHER
74HC VCC 50% < 2 ns 6 ns
74HCT 3.0 V 1.3 V <2 ns 6 ns
CL= load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).
RT= termination resistance should be equal to the output impedance ZO of the pulse generator.
tr=t
f
= 6 ns; when measuring fmax, there is no constraint on tr, tf with 50% duty factor.
Conditions
TEST SWITCH Vis
tPZH VEE VCC
tPZL VCC VEE
tPHZ VEE VCC
tPLZ VCC VEE
others open pulse
FAMILY AMPLITUDE VM
tr; tf
fmax;
PULSE WIDTH OTHER
74HC VCC 50% < 2 ns 6 ns
74HCT 3.0 V 1.3 V <2 ns 6 ns
CL= load capacitance including jig and probe capacitance (see AC CHARACTERISTICS for values).
RT= termination resistance should be equal to the output impedance ZO of the pulse generator.
tr=t
f
= 6 ns; when measuring fmax, there is no constraint on tr, tf with 50% duty factor.
Fig.21 Input pulse definitions.
December 1990 17
Philips Semiconductors Product specification
8-channel analog multiplexer/demultiplexer
with latch 74HC/HCT4351
PACKAGE OUTLINES
See
“74HC/HCT/HCU/HCMOS Logic Package Outlines”
.
Philips Semiconductors - PIP - 74HC/HCT4351; 8-channel analog multiplexer/demultiplexer with latch
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Product Information
74HC/HCT4351; 8-
channel analog
multiplexer/demultiplexer
with latch
Information as of 2003-04-22
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General description
The 74HC/HCT4351 are high-speed Si-gate CMOS devices. They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT4351 are 8-channel analog multiplexers/demultiplexers with three select inputs (S0 to S2), two enable inputs
(E1 and E2), a latch enable input (LE), eight independent inputs/outputs (Y0 to Y7) and a common input/output (Z).
With E1 LOW and E2 is HIGH, one of the eight switches is selected (low impedance ON-state) by S0 to S2. The data at the
select inputs may be latched by using the active LOW latch enable input (LE). When LE is HIGH the latch is transparent.
When either of the two enable inputs, E1 (active LOW) and E2 (active HIGH), is inactive, all 8 analog switches are turned
off.
VCC and GND are the supply voltage pins for the digital control inputs (S0 to S2, LE, E1 and E2). The VCC to GND ranges
are 2.0 to 10.0 V for HC and 4.5 to 5.5 V for HCT. The analog inputs/outputs (Y0 to Y7, and Z) can swing between VCC as a
positive limit and VEE as a negative limit.
VCC - VEE may not exceed 10.0 V.
For operation as a digital multiplexer/demultiplexer, VEE is connected to GND (typically ground).
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Features
● Wide analog input voltage range: ± 5 V
● Low 'ON' resistance:
80 Ω (typ.) at VCC - VEE = 4.5 V
70 Ω (typ.) at VCC - VEE = 6.0 V
60 Ω (typ.) at VCC - VEE = 9.0 V
● Logic level translation: to enable 5 V logic to communicate with ± 5 V analog signals
● Typical 'break before make' built in
● Address latches provided
● Output capability: non-standard
● ICC category: MSI
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Philips Semiconductors - PIP - 74HC/HCT4351; 8-channel analog multiplexer/demultiplexer with latch
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Datasheet
Type number Title Publication
release date Datasheet status Page
count File
size
(kB)
Datasheet
74HC/HCT4351 8-channel analog
multiplexer/demultiplexer with
latch
12/1/1990 Product
specification 17 122
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PDF
File
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Additional datasheet info
To complete the device datasheet with package and family information, also download the following PDF files. The "Logic
Package Information" document is required to determine in which package(s) this device is available.
Document Description
1
Download
PDF
File
HCT_FAMILY_SPECIFICATIONS HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic Family
Specifications
2
Download
PDF
File
HCT_PACKAGE_INFO HC/T Package Info, The IC06 74HC/HCT/HCMOS Logic Package
Information
3
Download
PDF
File
HCT_PACKAGE_OUTLINES HC/T Package Outlines, The IC06 74HC/HCT/HCMOS Logic Package
Outlines
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Parametrics
Type number Package Description Propagation
Delay(ns) Voltage No.
of
Pins
Power
Dissipation
Considerations
Logic
Switching
Levels
Output
Drive
Capability
74HC4351D SOT163
(SO20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch 10~15 5 Volts
+20 Low Power or
Battery
Applications CMOS Low
74HC4351DB SOT339-
1
(SSOP20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch 10~15 5 Volts
+20 Low Power or
Battery
Applications CMOS Low
74HC4351N SOT146-
1 (DIP20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch 10~15 5 Volts
+20 Low Power or
Battery
Applications CMOS Low
74HCT4351D SOT163
(SO20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch; TTL Enabled 10~15 5 Volts
+20 Low Power or
Battery
Applications TTL Low
74HCT4351DB SOT339-
1
(SSOP20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch; TTL Enabled 10~15 5 Volts
+20 Low Power or
Battery
Applications TTL Low
74HCT4351N SOT146-
1 (DIP20)
8-Channel Analog
Multiplexer/Demultiplexer
with Latch; TTL Enabled 10~15 5 Volts
+20 Low Power or
Battery
Applications TTL Low
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Philips Semiconductors - PIP - 74HC/HCT4351; 8-channel analog multiplexer/demultiplexer with latch
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Products, packages, availability and ordering
Type number North American
type number Ordering code
(12NC) Marking/Packing
Download
PDF
File
Discretes packing
info
Package Device status Buy online
74HC4351D 74HC4351D 9337 717 00652 Standard Marking *
Bulk Pack, CECC SOT163
(SO20) Full production
-
74HC4351D-T 9337 717 00653 Standard Marking *
Reel Pack, SMD,
13", CECC
SOT163
(SO20) Full production
-
74HC4351DB 74HC4351DB 9351 900 70112 Standard Marking *
Bulk Pack SOT339-1
(SSOP20) Full production
-
74HC4351DB-T 9351 900 70118 Standard Marking *
Reel Pack, SMD,
13"
SOT339-1
(SSOP20) Full production
-
74HC4351N 74HC4351N 9337 574 80652 Standard Marking *
Bulk Pack, CECC SOT146-1
(DIP20) Full production
-
74HCT4351D 74HCT4351D 9337 746 00112 Standard Marking *
Bulk Pack SOT163
(SO20) Full production
-
74HCT4351D-T 9337 746 00118 Standard Marking *
Reel Pack, SMD,
13"
SOT163
(SO20) Full production
-
74HCT4351DB 74HCT4351DB 9351 900 60112 Standard Marking *
Bulk Pack SOT339-1
(SSOP20) Full production
-
74HCT4351DB-
T 9351 900 60118 Standard Marking *
Reel Pack, SMD,
13"
SOT339-1
(SSOP20) Full production
-
74HCT4351N 74HCT4351N 9337 574 90112 Standard Marking *
Bulk Pack SOT146-1
(DIP20) Full production
-
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74HC/HCT4351
74HC/HCT4351 links to the similar products page containing an overview of products that are similar in function or
related to the type number(s) as listed on this page. The similar products page includes products from the same catalog
tree(s), relevant selection guides and products from the same functional category.
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Support & tools
Download
PDF
File
HC/T Family Specifications, The IC06 74HC/HCT/HCMOS Logic Family Specifications(date 01-Mar-98)
Download
PDF
File
HC/T User Guide(date 01-Nov-97)
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