MC74F240DW Ver la hoja de datos (PDF) - Motorola => Freescale

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MC74F240DW

OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS FAST™ SCHOTTKY TTL

Motorola => Freescale 

OCTAL BUFFER/LINE DRIVER

WITH 3-STATE OUTPUTS

The F240, F241 and F244 are octal buffers and line drivers designed to be

employed as memory address drivers, clock drivers, and bus-oriented trans-

mitters/receivers which provide improved PC board density.

• 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers

• Outputs Sink 64 mA

• 15 mA Source Current

• Input Clamp Diodes Limit High-Speed Termination Effects

• ESD > 4000 Volts

CONNECTION DIAGRAMS

MC54/74F240

VCC OEb Ya0 Ib0 Ya1 Ib1 Ya2 Ib2 Ya3 Ib3

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

OEa Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND

MC54/74F241

VCC OEb Ya0 Ib0 Ya1 Ib1 Ya2 Ib2 Ya3 Ib3

20 19 18 17 16 15 14 13 12 11

MC54/74F240

MC54/74F241

MC54/74F244

OCTAL BUFFER/LINE DRIVER

WITH 3-STATE OUTPUTS

FAST™ SCHOTTKY TTL

20

1

J SUFFIX

CERAMIC

CASE 732-03

20

1

N SUFFIX

PLASTIC

CASE 738-03

20

1

DW SUFFIX

SOIC

CASE 751D-03

ORDERING INFORMATION

MC54FXXXJ Ceramic

MC74FXXXN Plastic

MC74FXXXDW SOIC

1 2 3 4 5 6 7 8 9 10

OEa Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND

MC54/74F244

VCC OEb Ya0 Ib0 Ya1 Ib1 Ya2 Ib2 Ya3 Ib3

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

OEa Ia0 Yb0 Ia1 Yb1 Ia2 Yb2 Ia3 Yb3 GND

FAST AND LS TTL DATA

4-108

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