SN74LS623DW 查看數據表（PDF） - Motorola => Freescale

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SN74LS623DW

OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUT

Motorola => Freescale 

SN54 / 74LS623

AC CHARACTERISTICS (TA = 25°C, VCC = 5.0 V)

Limits

Symbol

Parameter

Min Typ Max Unit

tPLH

tPHL

Propagation Delay

A to B

8.0

11

15

15

ns

tPLH

tPHL

Propagation Delay

B to A

8.0

11

15

15

ns

tPZL

tPZH

Output Enable Time

GBA to A

31

26

40

40

ns

tPZL

tPZH

Output Enable Time

GAB to B

31

26

40

40

ns

tPLZ

tPHZ

Output Disable Time

GBA to A

15

25

15

25

ns

tPLZ

tPHZ

Output Disable Time

GAB to B

15

15

25

25

ns

Test Conditions

CL = 45 pF,

RL = 667 Ω

CL = 5.0 pF

FAST AND LS TTL DATA

5-3

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