74LVC573APWDH Просмотр технического описания (PDF) - Philips Electronics

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74LVC573APWDH

Octal D-type transparent latch with 5-volt tolerant inputs/outputs (3-State)

Philips Electronics 

Philips Semiconductors

Octal D-type transparent latch with 5-volt

tolerant inputs/outputs (3-State)

Product specification

74LVC573A

LOGIC DIAGRAM

D0

D1

D2

D3

D4

D5

D6

D7

DQ

LATCH

1

LE LE

DQ

LATCH

2

LE LE

DQ

LATCH

3

LE LE

DQ

LATCH

4

LE LE

DQ

LATCH

5

LE LE

DQ

LATCH

6

LE LE

DQ

LATCH

7

LE LE

DQ

LATCH

8

LE LE

LE

OE

Q0

Q1

Q2

Q3

Q4

Q5

FUNCTION TABLE

OPERATING MODES

Enable and read register

(transparent mode)

INPUTS

OE

LE

Dn

L

H

L

L

H

H

Latch and read register

L

L

l

L

L

h

Latch register and

disable outputs

H

L

l

H

L

h

H = HIGH voltage level

h = HIGH voltage level one setup time prior to the HIGH-to-LOW LE transition

L = LOW voltage level

l = LOW voltage level one setup time prior to the HIGH-to-LOW LE transition

X = Don’t care

Z = High impedance OFF-state

INTERNAL LATCHES

L

H

L

H

L

H

Q6

Q7

SA00399

OUTPUTS

Q0 to Q7

L

H

L

H

Z

Z

1998 Jul 29

4

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