74ABT2245DB View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

74ABT2245DB

Octal transceiver with direction pin with 30Ω series termination resistors (3-State)

Philips Electronics 

Philips Semiconductors

Octal transceiver with direction pin

and 30Ω series termination resistors (3-State)

Product specification

74ABT2245

FEATURES

• Octal bidirectional bus interface

• 3-State buffers

• Output capability: +12mA/–32mA

• Latch-up protection exceeds 500mA per Jedec Std 17

• ESD protection exceeds 2000 V per MIL STD 833 Method 3015

and 200 V per Machine Model

• Power-up 3-State

• Live insertion/extraction permitted

• Same as 74ABT245-1

• Outputs include series resistance of 30Ω, making external

termination resistors unnecessary

• Inputs are disabled during 3-State mode

DESCRIPTION

The 74ABT2245 high-performance BiCMOS device combines low

static and dynamic power dissipation with high speed.

The 74ABT2245 device is an octal transceiver featuring

non-inverting 3-State bus compatible outputs in both send and

receive directions. The control function implementation minimizes

external timing requirements. The device features an Output Enable

(OE) input for easy cascading and a Direction (DIR) input for

direction control.

The 74ABT2245 is designed with 30Ω series resistance in both the

High and Low states of the output. This design reduces line noise in

applications such as memory address drivers, clock drivers, and bus

receivers/transmitters.

The 74ABT2245 is the same as the 74ABT245-1. The part number

has been changed to reflect industry standards.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

tPLH

tPHL

CIN

CI/O

ICCZ

Propagation delay

An to Bn or Bn to An

Input capacitance DIR, OE

I/O pin capacitance

Total supply current

CONDITIONS

Tamb = 25°C; GND = 0V

CL = 50pF; VCC = 5V

VI = 0V or VCC

Outputs disabled; VO = 0V or VCC

Outputs disabled; VCC =5.5V

TYPICAL

3.9

4

7

50

UNIT

ns

pF

pF

µA

ORDERING INFORMATION

PACKAGES

20-Pin Plastic DIP

20-Pin plastic SO

20-Pin Plastic SSOP Type II

20-Pin Plastic TSSOP Type I

TEMPERATURE RANGE OUTSIDE NORTH AMERICA

–40°C to +85°C

74ABT2245 N

–40°C to +85°C

74ABT2245 D

–40°C to +85°C

74ABT2245 DB

–40°C to +85°C

74ABT2245 PW

NORTH AMERICA

74ABT2245 N

74ABT2245 D

74ABT2245 DB

7ABT2245PW DH

DWG NUMBER

SOT146-1

SOT163-1

SOT339-1

SOT360-1

PIN CONFIGURATION

DIR 1

A0 2

A1 3

A2 4

A3 5

A4 6

A5 7

A6 8

A7 9

GND 10

20 VCC

19 OE

18 B0

17 B1

16 B2

15 B3

14 B4

13 B5

12 B6

11 B7

SA00121

PIN DESCRIPTION

PIN NUMBER

SYMBOL

1

DIR

2, 3, 4, 5, 6, 7, 8, 9 A0 – A7

18, 17, 16, 15, 14,

13, 12, 11

B0 – B7

19

OE

10

GND

20

VCC

NAME AND FUNCTION

Direction control input

Data inputs/outputs (A side)

Data inputs/outputs (B side)

Output enable input

(active-Low)

Ground (0V)

Positive supply voltage

1998 Jan 16

2

853-1761 18865

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