Philips Semiconductors

Product specification

74F1245

Octal transceiver (3-State)

1995 Mar 01

3

LOGIC SYMBOL (IEEE/IEC)

SF00649

G3

19

3EN1 (BA)

1

3EN2 (AB)

∇ 1

2

∇

2

3

4

5

6

7

8

9

18

17

16

15

14

13

12

11

FUNCTION TABLE

INPUTS

INPUTS/OUTPUTS

OE

T/R

An

Bn

L

L

A = B

INPUTS

L

H

INPUTS

B = A

H

X

Z

Z

H = High voltage level

L = Low voltage level

X = Don’t care

Z = High impedance “off” state

LOGIC DIAGRAM

SF00201

18

B0

17

B1

16

B2

15

B3

14

B4

13

B5

12

B6

11

B7

A0

A1

A2

A3

A4

A5

A6

A7

23

4567

89

19

1

OE

T/R

GND = Pin 10

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limits set forth in this table may impair the useful life of the device.

Unless otherwise noted these limits are over the operating free-air temperature range.)

SYMBOL

PARAMETER

RATING

UNIT

Supply voltage

–0.5 to +7.0

V

Input voltage

–0.5 to +7.0

V

Input current

–30 to +5

mA

Voltage applied to output in High output state

–0.5 to +5.5

V

Current applied to output in Low output state

A0–A7

48

mA

Current applied to output in Low output state

B0–B7

128

mA

Operating free-air temperature range

0 to +70

°C

Storage temperature range

–65 to +150

°C