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SN74ALS996DW Datasheet(PDF) 5 Page - Texas Instruments

Part No. SN74ALS996DW
Description  8-BIT D-TYPE EDGE-TRIGGERED READ-BACK LATCHES
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS996, SN74ALS996
8-BIT D-TYPE EDGE-TRIGGERED READ-BACK LATCHES
SDAS098B – OCTOBER 1984 – REVISED JANUARY 1995
2–5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS996
SN74ALS996
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
– 1.2
V
All outputs
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
VCC –2
VOH
Q
VCC =4 5V
IOH = – 1 mA
2.4
3.2
V
Q
VCC = 4.5 V
IOH = – 2.6 mA
2.4
3.2
D
VCC =4 5V
IOL = 4 mA
0.25
0.4
D
VCC = 4.5 V
IOL = 8 mA
0.35
0.5
VOL
IOL = 12 mA
0.25
0.4
0.25
0.4
V
Q
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
IOL = 48 mA‡
0.35
0.5
IOZH
Q
VCC = 5.5 V,
VO = 2.7 V
20
20
µA
IOZL
Q
VCC = 5.5 V,
VO = 0.4 V
–20
–20
µA
II
D inputs
VCC =5 5V
VI = 5.5 V
0.1
0.1
mA
II
All others
VCC = 5.5 V
VI = 7 V
0.1
0.1
mA
IIH
D inputs§
VCC =5 5V
VI =2 7V
20
20
µA
IIH
All others
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
I
D inputs§
VCC =5 5V
VI =0 4V
– 0.1
– 0.1
mA
IIL
All others
VCC = 5.5 V,
VI = 0.4 V
– 0.1
– 0.1
mA
IO¶
VCC = 5.5 V,
VO = 2.25 V
CLR = 2.5 V
–20
–112
–30
–112
mA
V5 5 V
Outputs high
35
55
35
55
ICC
VCC = 5.5 V,
EN,RD low
Outputs low
55
85
55
85
mA
EN, RD low
Outputs disabled
42
65
42
65
† All typical values are at VCC = 5 V, TA = 25°C.
‡ Applies only to the -1 version and only if VCC is maintained between 4.75 V and 5.25 V
§ For I/O ports (QA thru QH), the parameters IIH and IIL include the off-state output current.
¶ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.




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