Datasheet

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   
SCLS473A − APRIL 2003 − REVISED JANUARY 2004
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
V
CC
T
A
= 25°C
MIN
MAX
UNIT
V
CC
MIN MAX
MIN
MAX
UNIT
2 V 6 4.2
f
clock
Clock frequency
4.5 V
31 21
MHz
f
clock
Clock frequency
6 V 36 25
MHz
2 V 80 120
SH/LD low
4.5 V 16 24
t
w
Pulse duration
SH/LD low
6 V 14 20
ns
t
w
Pulse duration
2 V 80 120
ns
CLK high or low
4.5 V 16 24
CLK high or low
6 V 14 20
2 V 80 120
SH/LD high before CLK↑
4.5 V 16 24
SH/LD high before CLK↑
6 V 14 20
2 V 40 60
SER before CLK↑
4.5 V 8 12
SER before CLK↑
6 V 7 10
2 V 100 150
t
su
Setup time CLK INH low before CLK↑
4.5 V 20 30
ns
t
su
Setup time
CLK INH low before CLK↑
6 V 17 25
ns
2 V 40 60
CLK INH high before CLK↑
4.5 V 8 12
CLK INH high before CLK↑
6 V 7 10
2 V 100 150
Data before SH/LD↓
4.5 V 20 30
Data before SH/LD↓
6 V 17 26
2 V 5 5
SER data after CLK↑
4.5 V 5 5
t
h
Hold time
SER data after CLK↑
6 V 5 5
ns
t
h
Hold time
2 V 5 5
ns
PAR data after SH/LD↓
4.5 V 5 5
PAR data after SH/LD↓
6 V 5 5