Datasheet
SCLS134E − DECEMBER 1982 − REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
T
A
= 25°C SN54HC259 SN74HC259
UNIT
PARAMETER
TEST CONDITIONS
V
CC
MIN TYP MAX MIN MAX MIN MAX
UNIT
2 V 1.9 1.998 1.9 1.9
I
OH
= −20 µA
4.5 V 4.4 4.499 4.4 4.4
V
OH
V
I
= V
IH
or V
IL
I
OH
= −20 µA
6 V 5.9 5.999 5.9 5.9
V
V
OH
V
I
= V
IH
or V
IL
I
OH
= −4 mA 4.5 V 3.98 4.3 3.7 3.84
V
I
OH
= −5.2 mA 6 V 5.48 5.8 5.2 5.34
2 V 0.002 0.1 0.1 0.1
I
OL
= 20 µA
4.5 V 0.001 0.1 0.1 0.1
V
OL
V
I
= V
IH
or V
IL
I
OL
= 20 µA
6 V 0.001 0.1 0.1 0.1
V
V
OL
V
I
= V
IH
or V
IL
I
OL
= 4 mA 4.5 V 0.17 0.26 0.4 0.33
V
I
OL
= 5.2 mA 6 V 0.15 0.26 0.4 0.33
I
I
V
I
= V
CC
or 0 6 V ±0.1 ±100 ±1000 ±1000 nA
I
CC
V
I
= V
CC
or 0, I
O
= 0 6 V 8 160 80 µA
C
i
2 V to 6 V 3 10 10 10 pF
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
V
CC
T
A
= 25°C SN54HC259 SN74HC259
UNIT
V
CC
MIN MAX MIN MAX MIN MAX
UNIT
2 V 80 120 100
CLR low
4.5 V 16 24 20
t
w
Pulse duration
CLR low
6 V 14 20 17
ns
t
w
Pulse duration
2 V 80 120 100
ns
G low
4.5 V 16 24 20
G low
6 V 14 20 17
2 V 75 115 95
t
su
Setup time, data or address before G↑
4.5 V
15 23 19
ns
t
su
Setup time, data or address before G↑
6 V 13 20 16
ns
2 V 5 5 5
t
h
Hold time, data or address after G↑
4.5 V
5 5 5
ns
t
h
Hold time, data or address after G
6 V 5 5 5
ns