MM88C30J - National Semiconductor

TL/F/5908

MM78C29/MM88C29 Quad Single-Ended Line Driver

MM78C30/MM88C30 Dual Differential Line Driver

February 1996

MM78C29/MM88C29 Quad Single-Ended Line Driver

MM78C30/MM88C30 Dual Differential Line Driver

General Description

The MM78C30/MM88C30 is a dual differential line driver

that also performs the dual four-input NAND or dual four-in-

put AND function. The absence of a clamp diode to VCC in

the input protection circuitry of the MM78C30/MM88C30 al-

lows a CMOS user to interface systems operating at differ-

ent voltage levels. Thus, a CMOS digital signal source can

operate at a VCC voltage greater than the VCC voltage of

the MM78C30 line driver. The differential output of the

MM78C30/MM88C30 eliminates ground-loop errors.

The MM78C29/MM88C29 is a non-inverting single-wire

transmission line driver. Since the output ON resistance is a

low 20Xtyp., the device can be used to drive lamps, relays,

solenoids, and clock lines, besides driving data lines.

Features

YWide supply voltage range 3V to 15V

YHigh noise immunity 0.45 VCC (typ.)

YLow output ON resistance 20X(typ.)

Logic Diagrams

1/4 MM78C29/MM88C29

TL/F/5908–1

1/2 MM78C30/MM88C30

TL/F/5908–2

C1996 National Semiconductor Corporation RRD-B30M36/Printed in U. S. A. http://www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales

Office/Distributors for availability and specifications.

Voltage at Any Pin (Note 1) b0.3V to VCC a16V

Operating Temperature Range

MM78C29/MM78C30 b55§Ctoa

125§C

MM88C29/MM88C30 b40§Ctoa

85§C

Storage Temperature b65§Ctoa

150§C

Power Dissipation (PD)

Dual-In-Line 700 mW

Small Outline 500 mW

Operating VCC Range 3V to 15V

Absolute Maximum VCC 18V

Average Current at Output

MM78C30/MM88C30 50 mA

MM78C29/MM88C29 25 mA

Maximum Junction Temperature, Tj150§C

Lead Temperature

(Soldering, 10 seconds) 260§C

DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted

Symbol Parameter Conditions Min Typ Max Units

CMOS TO CMOS

VIN(1) Logical ‘‘1’’ Input Voltage VCC e5V 3.5 V

VCC e10V 8 V

VIN(0) Logical ‘‘0’’ Input Voltage VCC e5V 1.5 V

VCC e10V 2 V

IIN(1) Logical ‘‘1’’ Input Current VCC e15V, VIN e15V 0.005 1 mA

IIN(0) Logical ‘‘0’’ Input Current VCC e15V, VIN e0V b1b0.005 mA

ICC Supply Current VCC e5V 0.05 100 mA

OUTPUT DRIVE

ISOURCE Output Source Current

MM78C29/MM78C30 VOUT eVCC b1.6V,

VCC t4.5V, Tje25§Cb57 b80 mA

Tje125§Cb32 b50 mA

MM88C29/MM88C30 VOUT eVCC b1.6V,

VCC t4.75V, Tje25§Cb47 b80 mA

Tje85§Cb32 b60 mA

MM78C29/MM88C29 VOUT eVCC b0.8V b2b20 mA

MM78C30/MM88C30 VCC t4.5V

ISINK Output Sink Current

MM78C29/MM78C30 VOUT e0.4V, VCC e4.5V,

Tje25§C1120mA

125§C 8 14 mA

VOUT e0.4V, VCC e10V,

Tje25§C2240mA

125§C1628mA

MM88C29/MM88C30 VOUT e0.4V, VCC e4.75V,

Tje25§C 9.5 22 mA

Tje85§C 8 18 mA

VOUT e0.4V, VCC e10V,

Tje25§C1940mA

125§C 15.5 33 mA

ISOURCE Output Source Resistance

MM78C29/MM78C30 VOUT eVCC b1.6V,

VCC t4.5V, Tje25§C2028X

125§C3250X

MM88C29/MM88C30 VOUT eVCC b1.6V,

VCC t4.75V, Tje25§C2034X

85§C2750X

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DC Electrical Characteristics

Min/Max limits apply across temperature range, unless otherwise noted (Continued)

Symbol Parameter Conditions Min Typ Max Units

OUTPUT DRIVE (Continued)

ISINK Output Sink Resistance

MM78C29/MM78C30 VOUT e0.4V, VCC e4.50V,

Tje25§C2036X

125§C2850X

OUT e0.4V, VCC e10V,

Tje25§C1018X

125§C1425X

MM88C29/MM88C30 VOUT e0.4V, VCC e4.75V,

Tje25§C1841X

85§C2250X

OUT e0.4V, VCC e10V,

Tje25§C1021X

85§C1226X

Output Resistance

Temperature Coefficient

Source 0.55 %/§C

Sink 0.40 %/§C

iJA Thermal Resistance

MM78C29/MM78C30 100 §C/W

(D-Package)

MM88C29/MM88C30 150 §C/W

(N-Package)

AC Electrical Characteristics*TAe25§C, CLe50 pF

Symbol Parameter Conditions Min Typ Max Units

tpd Propagation Delay Time to

Logical ‘‘1’’ or ‘‘0’’ (See

Figure 2

)

MM78C29/MM88C29 VCC e5V 80 200 ns

VCC e10V 35 100 ns

MM78C30/MM88C30 VCC e5V 110 350 ns

VCC e10V 50 150 ns

tpd Differential Propagation Delay RLe100X,C

Le5000 pF

Time to Logical ‘‘1’’ or ‘‘0’’ (See

Figure 1

)

MM78C30/MM88C30 VCC e5V 400 ns

VCC e10V 150 ns

CIN Input Capacitance

MM78C29/MM88C29 (Note 3) 5.0 pF

MM78C30/MM88C30 (Note 3) 5.0 pF

CPD Power Dissipation Capacitance

MM78C29/MM88C29 (Note 3) 150 pF

MM78C30/MM88C30 (Note 3) 200 pF

*AC Parameters are guaranteed by DC correlated testing.

Note 1: ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed. Except for ‘‘Operating Temperature Range’’

they are not meant to imply that the devices should be operated at these limits. The table of ‘‘Electrical Characteristics’’ provides conditions for actual device

operation.

Note 2: Capacitance is guaranteed by periodic testing.

Note 3: CPD determines the no load AC power consumption of any CMOS device. For complete explanation see 54C/74C Family Characteristics application note

AN-90 (CMOS Logic Databook).

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Connection Diagrams

Dual-In-Line Package

MM78C29/MM88C29

TL/F/5908–3

Top View

Order Number MM88C29M or MM88C29N

Dual-In-Line Package

MM78C30/MM88C30

TL/F/5908–4

Top View

Order Number MM88C30M or MM88C30N

For Complete Military 883 Specifications, see RETS Data Sheet.

Order Number MM78C29J/883, MM78C29W/883, MM78C30J/883 or MM78C30W/883

Typical Performance Characteristics

Load Capacitance

Typical Propagation Delay vs

MM78C29/MM88C29

Load Capacitance

Typical Propagation Delay vs

MM78C29/MM88C29

Load Capacitance

Typical Propagation Delay vs

MM78C30/MM88C30

Load Capacitance

Typical Propagation Delay vs

MM78C30/MM88C30

Output Voltage

Typical Sink Current vs

Output Voltage

Typical Source Current vs

TL/F/5908–5

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AC Test Circuits

TL/F/5908–6

TL/F/5908–7

FIGURE 1

TL/F/5908–8 TL/F/5908–9

FIGURE 2

Typical Applications

Digital Data Transmission

TL/F/5908–10

Note 1: Exact value depends on line length.

Note 2: Optional to control response time.

Note 3: VCC e4.5V to 5.5V for the DS7820, VCC e4.5V to 15V for the

DS78C20.

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Typical Applications (Continued)

TL/F/5908–11

TL/F/5908–12

Note 1: VCC is 3V to 15V

Typical Data Rate vs Transmission Line Length

TL/F/5908–13

Note 1: The transmission line used was Ý22 gauge unshielded twisted pair (40k

termination).

Note 2: The curves generated assume that both drivers are driving equal lines,

and that the maximum power is 500 mW/package.

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Physical Dimensions inches (millimeters)

Ceramic Dual-In-Line Package (J)

Order Number MM78C29J, MM78C30J, MM88C29J or MM88C30J

NS Package Number J14A

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MM78C29/MM88C29 Quad Single-Ended Line Driver

MM78C30/MM88C30 Dual Differential Line Driver

Physical Dimensions inches (millimeters) (Continued)

Molded Dual-In-Line Package (N)

Order Number MM78C29N, MM78C30N, MM88C29N or MM88C30N

NS Package Number N14A

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failure to perform, when properly used in accordance support device or system, or to affect its safety or

with instructions for use provided in the labeling, can effectiveness.

be reasonably expected to result in a significant injury

to the user.

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