4-167

FAST AND LS TTL DATA

OCTAL TRANSPARENT LATCH

WITH 3-STATE OUTPUTS

The MC54/74F373 consists of eight latches with 3-state outputs for bus or-

ganized system applications. The flip-flops appear transparent to the data

when Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the

setup times is latched. Data appears on the bus when the Output Enable (OE)

is LOW. When OE is HIGH the bus output is in the high impedance state.

20

14

2

3

4

5

6

7

8

9

10

D0

OE

O0

D1

O1

D2

O2

D3

GND

O3

11

12

13

15

17

18

19

16

VCC

O7

D7

D6

O6

D5

O5

D4

LE

O4

1

CONNECTION DIAGRAM (TOP VIEW)

LOGIC SYMBOL

VCC = PIN 20

GND = PIN 10

3

4

7

8 13 14 17 18

11

1

2

5

6

9 12 15 16 19

D0 D1 D2 D3 D4 D5 D6 D7

LE

OE

O0 O1 O2 O3 O4 O5 O6 O7

GUARANTEED OPERATING RANGES

Symbol

Parameter

Min

Typ

Max

Unit

VCC

Supply Voltage

54, 74

4.5

5.0

5.5

V

TA

Operating Ambient Temperature Range

54

–55

25

125

°C

74

0

25

70

IOH

Output Current — HIGH

54, 74

–3.0

mA

IOL

Output Current — LOW

54, 74

24

mA

DW SUFFIX

SOIC

CASE 751D-03

20

1

N SUFFIX

PLASTIC

CASE 738-03

20

1

J SUFFIX

CERAMIC

CASE 732-03

20

1

MC54/74F373

OCTAL TRANSPARENT LATCH

WITH 3-STATE OUTPUTS

FAST

ORDERING INFORMATION

MC54FXXXJ

Ceramic

MC74FXXXN

Plastic

MC74FXXXDW SOIC