mc10123fn ON Semiconductor, mc10123fn Datasheet

mc10123fn

Manufacturer Part Number

mc10123fn

Description

Triple 4-3-3-input Bus Driver

Manufacturer

ON Semiconductor

Datasheet

1.MC10123FN.pdf (4 pages)

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Triple 4-3-3-Input Bus Driver

applications on card or between cards. Output low logic levels are specified with

V OL = –2.1 Vdc so that the bus may be terminated to –2.0 Vdc. The gate output,

when low, appears as a high impedance to the bus, because the output emitter–

followers of the MC10123 are “turned–off.” This eliminates discontinuities in the

characteristic impedance of the bus.

Vdc, the equivalent of a 50–ohm bus terminated at both ends. Although 25

ohms is the lowest characteristic impedance that can be driven by the

MC10123, higher impedance values may be used with this part. A typical

50–ohm bus is shown in Figure 1.

3/93

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Motorola, Inc. 1996

The MC10123 consists of three NOR gates designed for bus driving

The V OH level is specified when driving a 25–ohm load terminated to –2.0

50 Ω

Z O = 50 Ω

FIGURE 1 — 50–OHM BUS DRIVER (TYPICAL APPLICATION)

VDC

–2.0

1/3 MC10123

t r , t f = 2.5 ns typ (20%–80%)

P D = 310 mW typ/pkg (No Load)

t pd = 3.0 ns typ

1/3 MC10123

RECEIVERS (MECL GATES)

LOGIC DIAGRAM

V CC1 = PIN 1

V CC2 = PIN 16

V EE = PIN 8

3–78

1/3 MC10123

VDC

–2.0

50 Ω

REV 5

For PLCC pin assignment, see the Pin Conversion

Tables on page 6–11 of the Motorola MECL Data

Pin assignment is for Dual–in–Line Package.

B OUT

A OUT

V CC1

V EE

A IN

MC10123

PIN ASSIGNMENT

Book (DL122/D).

DIP

CERAMIC PACKAGE

PLASTIC PACKAGE

CASE 620–10

CASE 648–08

CASE 775–02

FN SUFFIX

L SUFFIX

P SUFFIX

PLCC

V CC2

C OUT

C IN

B IN

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mc10123fn Summary of contents

Page 1

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Triple 4-3-3-Input Bus Driver The MC10123 consists of three NOR gates designed for bus driving applications on card or between cards. Output low logic levels are specified with –2.1 Vdc so that the ...

Page 2

ELECTRICAL CHARACTERISTICS Characteristic Symbol Power Supply Drain Current I E Input Current I inH I inL Output Voltage Logic Output Voltage Logic Threshold Voltage Logic 1 V OHA Threshold Voltage Logic 0 V OLA ...

Page 3

MC10123 Y BRK –N– –L– –M– 0.007 (0.180) Z 0.007 (0.180 –T– J VIEW S G1 0.010 (0.250) T L– NOTES: 1. DATUMS –L–, –M–, AND –N– ...

Page 4

SEATING PLANE 0.25 (0.010 –A– 0.25 (0.010) Motorola reserves the right to make ...

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