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Rev.2.00 Mar 30, 2006 page 1 of 8
HD74HC374, HD74HC534
Octal D-type Flip-Flops (with 3-state outputs)
Octal D-type Flip-Flops (with inverted 3-state outputs) REJ03D0620-0200
(Previous ADE-205-4 99)
Rev.2.00
Mar 30, 2006
Description
These devices are positive edge triggered flip-flops. The difference between HD74HC374 and HD74HC534 is only
that the former is a true outputs and the latter is a false outputs. Data at the D inputs, meeting the setup and hold time
requirements, are transferred to the Q outputs on positive going transitions of the clock (CK) input. Whe n a high logic
level is applied to the output control (OC) input, all outputs go to a high impeda nce state, regardless of what signals are
present at the other inputs and the state of the storage elements.
Features
• High Speed Operation: tpd (Clock to Q) = 18 ns typ (CL = 50 pF)
• High O utput Current: Fa nout of 15 LSTTL Loa ds
• Wide Operating Voltage: VCC = 2 to 6 V
• Low Input Current: 1 µA max
• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
• Ordering Info rmation
Part Name Package Type Package Code
(Previous Code) Package
Abbreviation Taping Abbreviation
(Quantity)
HD74HC374P
HD74HC534P DILP-20 pin PRDP0020AC-B
(DP-20NEV) P —
HD74HC374FPEL
HD74HC534FPEL SOP-20 pin (JEITA) PRSP0020DD-B
(FP-20DAV) FP EL (2,000 pcs/reel)
HD74HC534RPEL SOP-20 pin (JEDEC) PRSP0020DC-A
(FP-20DBV) RP EL (1,000 pcs/reel)
HD74HC374TELL TSSOP-20 pin PTSP0020JB-A
(TTP-20DAV) T ELL (2,000 pcs/reel)
Note: Please consult the sales office for the above package availability.
Function Table
Output Control Clock D HD74HC374
Q HD74HC534
Q
L H H L
L L L H
L L X No change No change
H X X Z Z
Note: 1. H; High level, L; Low level, X; Irrelevant, Z; High impedance
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 2 of 8
Pin Arrangement
HD74HC374
(Top view)
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
Output
Control
1Q
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
Cloc
k
1D
2D
2Q
3Q
3D
4D
4Q
GND
HD74HC534
(Top view)
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
Output
Control
1Q
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
Cloc
k
1D
2D
2Q
3Q
3D
4D
4Q
GND
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 3 of 8
Logic Diagram
HD74HC374
8D
8Q
D
C
CCCCCCC Q
7D
7Q
D
Q
6D
6Q
D
Q
5D
5Q
D
Q
4D
4Q
D
Q
3D
3Q
D
Q
2D
2Q
D
Q
1D
1Q
DQQQQQQQQ
Q
Clock
Output
Control
HD74HC534
8D
8Q
D
C
CCCCCCC Q
7D
7Q
D
Q
6D
6Q
D
Q
5D
5Q
D
Q
4D
4Q
D
Q
3D
3Q
D
Q
2D
2Q
D
Q
1D
1Q
DQQQQQQQQ
Q
Clock
Output
Control
Absolute Maximum Ratings
Item Symbol Ratings Unit
Supply voltage range VCC –0.5 to 7.0 V
Input / Output voltage VIN, VOUT –0.5 to VCC +0.5 V
Input / Output diode current IIK, IOK ±20 mA
Output current IOUT ±35 mA
VCC, GND current ICC or IGND ±75 mA
Power dissipation PT 500 mW
Storage temperature Tstg –65 to +150 °C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 4 of 8
Recommended Operating Conditions
Item Symbol Ratings Unit Conditions
Supply voltage VCC 2 to 6 V
Input / Output voltage VIN, VOUT 0 to VCC V
Operating temperature Ta –40 to 85 °C
0 to 1000 VCC = 2.0 V
0 to 500 VCC = 4.5 V
Input rise / fall time*1 t
r, tf 0 to 400 ns VCC = 6.0 V
Note: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Electrical Characteristics
Ta = 25°C Ta = –40 to+85°C
Item Symbol VCC (V) Min Typ Max Min Max Unit Test Conditions
2.0 1.5 — — 1.5 —
4.5 3.15 — — 3.15 —
VIH
6.0 4.2 — — 4.2 —
V
2.0 — — 0.5 — 0.5
4.5 — — 1.35 — 1.35
Input voltage
VIL
6.0 — — 1.8 — 1.8
V
2.0 1.9 2.0 — 1.9 —
4.5 4.4 4.5 — 4.4 —
6.0 5.9 6.0 — 5.9 —
IOH = –20 µA
4.5 4.18 — — 4.13 — IOH = –6 mA
VOH
6.0 5.68 — — 5.63 —
V Vin = VIH or VIL
IOH = –7.8 mA
2.0 — 0.0 0.1 — 0.1
4.5 — 0.0 0.1 — 0.1
6.0 — 0.0 0.1 — 0.1
IOL = 20 µA
4.5 — — 0.26 — 0.33 IOL = 6 mA
Output voltage
VOL
6.0 — — 0.26 — 0.33
V Vin = VIH or VIL
IOL = 7.8 mA
Off-state output
current IOZ 6.0 — — ±0.5 — ±5.0 µA Vin = VIH or VIL,
Vout = VCC or GND
Input current Iin 6.0 — — ±0.1 — ±1.0 µA Vin = VCC or GND
Quiescent su pply
current ICC 6.0 — — 4.0 — 40 µA Vin = VCC or GND, Iout = 0 µA
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 5 of 8
Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C Ta = –40 to +85°C
Item Symbol VCC (V) Min Typ Max Min Max Unit Test Conditions
2.0 — — 6 — 5
4.5 — — 30 — 24
Maximum clock
frequency fmax
6.0 — — 35 — 28
MHz
2.0 — — 140 — 175
4.5 — 18 28 — 35
Propagation delay
time tPHL
tPLH 6.0 — — 24 — 30
ns
2.0 — — 150 — 190
4.5 — 11 30 — 38
tZL
6.0 — — 26 — 33
ns
2.0 — — 150 — 190
4.5 — 14 30 — 38
Output enable
time
tZH
6.0 — — 26 — 33
ns
2.0 — — 150 — 190
4.5 — 13 30 — 38
tLZ
6.0 — — 26 — 33
ns
2.0 — — 150 — 190
4.5 — 16 30 — 38
Output disable
time
tHZ
6.0 — — 26 — 33
ns
2.0 100 — — 125 —
4.5 20 1 — 25 —
Setup time tsu
6.0 17 — — 21 —
ns Data to Clock
2.0 25 — — 31 —
4.5 5 1 — 6 —
Hold time th
6.0 5 — — 6 —
ns Clock to Data
2.0 80 — — 100 —
4.5 16 6 — 20 —
Pulse width tw
6.0 14 — — 17 —
ns Clock or Output control
2.0 — — 60 — 75
4.5 — 4 12 — 15
Output rise/fall
time tTLH
tTHL 6.0 — — 10 — 13
ns
Input capacitan ce Cin — — 5 10 — 10 pF
Test Circuit
VCC
OPEN
GND
C =
50 pF
OC
Zout = 50 Ω
1 kΩ
VCC
VCC
VCC
S1
L
Pulse Generator
TEST S1
t / t
PLH PHL OPEN
GND
t / t
ZH HZ
t / t
ZL LZ
1D to 8D
1Q to 8Q
or
1Q to 8Q
Clock
Zout = 50 Ω
Pulse Generator
Note : 1. CL includes probe and jig capacitance.
See Function Table
Input
Output
Input
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 6 of 8
Waveforms
Input CLK
0 V
tPLH
10 %
90 %
trtf
10 %
50 % 50 %
50 %
50 %
50 %
50 %
50 %
50 %
50 % 50 %
50 %
50 % 50 %
10 %
tr
90 %
10 %
tf
0 V
tPHL
VOH
VCC
VCC
VCC
VCC
VCC
VOL
Input D
Output Q
tw
tsu th
0 V
0 V
Input CLK
Input D
tr
90 % 90 %
10 %
tf
10 %
90 %
90 %
90 %
10 %
tZL tLZ
tZH tHZ
tftr
90 %
10 %
90 %
10 %
VOH
VOL
0 V
Input OC
Waveform
- A
Waveform
- B
tw
VOH
VOL
•
Waveform – 3
•
Waveform – 2
•
Waveform – 1
Output Q
Notes : 1.
Input waveform : PRR ≤ 1
MHz, duty cycle 50%,
tr ≤ 6 ns, tf ≤ 6 ns
2. Waveform - A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform - B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4.
The output are measured one at a time with one transition per measurement.
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 7 of 8
Package Dimensions
7.62
MaxNomMin
Dimension in Millimeters
Symbol
Reference
24.50
6.30
5.08
A
1
Z
b
3
D
E
A
b
p
c
θ
e
L
e
1
0.51
0.56
1.30
0.19 0.25 0.31
2.29 2.54 2.79
0° 15°
25.40
7.00
0.40 0.48
1.27
2.54
1
p
1
3
110
20 11
e
b
A
LA
Z
e c
E
D
b
0.89
θ
( Ni/Pd/Au plating )
P-DIP20-6.3x24.5-2.54 1.26g
MASS[Typ.]
DP-20NEVPRDP0020AC-B
RENESAS CodeJEITA Package Code Previous Code
0.80
0.15
1.27
7.50 8.00
0.400.34
A
1
13.0
MaxNomMin
Dimension in Millimeters
Symbol
Reference
2.20
0.900.700.50
5.50
0.200.100.00
0.46
0.250.200.15
7.80
8°0°
0.12
1.15
12.60
L
1
Z
H
E
y
x
θ
c
b
p
A
2
E
D
b
1
c
1
e
e
L
A
20 11
10
F
*1
*2
*3
pMx
y
1
E
Index mark
D
E
H
b
Z
A
Terminal cross section
( Ni/Pd/Au plating )
p
c
b
1
1
Detail F
L
L
A
θ
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
P-SOP20-5.5x12.6-1.27 0.31g
MASS[Typ.]
FP-20DAVPRSP0020DD-B
RENESAS CodeJEITA Package Code Previous Code
HD74HC374, HD74HC534
Rev.2.00 Mar 30, 2006 page 8 of 8
0.935
0.15
1.27
10.00 10.65
0.400.34
A
1
13.2
MaxNomMin
Dimension in Millimeters
Symbol
Reference
2.65
1.270.700.40
7.50
0.300.200.10
0.46
0.300.250.20
10.40
8°0°
0.12
1.45
12.80
L
1
Z
H
E
y
x
θ
c
b
p
A
2
E
D
b
1
c
1
e
e
L
A
1120
10
F
*1
*2
*3
pMx
y
1
E
Index mark
E
H
D
Zb
A
Terminal cross section
( Ni/Pd/Au plating )
p
c
b
1
1
Detail F
L
L
A
θ
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
@ DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
@ INCLUDE TRIM OFFSET.
P-SOP20-7.5x12.8-1.27 0.52g
MASS[Typ.]
FP-20DBVPRSP0020DC-A
RENESAS CodeJEITA Package Code Previous Code
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
Index mark
E
1
y
xM
p
*3
*2
*1
F
10
20 11
A
D
E
H
Zb
Terminal cross section
( Ni/Pd/Au plating )
p
c
b
1
1
Detail F
A
L
L
θ
0.65
0.10
0.65
6.20 6.60
0.200.15
A
1
6.80
MaxNomMin
Dimension in Millimeters
Symbol
Reference
1.10
0.60.50.4
4.40
0.100.070.03
0.25
0.200.150.10
6.40
8°0°
0.13
1.0
6.50
L
1
Z
H
E
y
x
θ
c
b
p
A
2
E
D
b
1
c
1
e
e
L
A
P-TSSOP20-4.4x6.5-0.65 0.07g
MASS[Typ.]
TTP-20DAVPTSP0020JB-A
RENESAS CodeJEITA Package Code Previous Code
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