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SN74BCT29843 Datasheet, PDF (3/5 Pages) Texas Instruments – 9-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
SN74BCT29843
9-BIT BUS-INTERFACE D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCBS022C – FEBRUARY 1989 – REVISED NOVEMBER 1993
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP† MAX UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.2 V
VOH
VCC = 4.5 V
IOH = – 15 mA
IOH = – 24 mA
2.4 3.2
V
2
VOL
VCC = 4.5 V,
IOL = 48 mA
0.35 0.55 V
II
VCC = 5.5 V,
VI = 7 V
0.1 mA
IIH
VCC = 5.5 V,
VI = 2.7 V
–10
–75 µA
IIL
IOS‡
VCC = 5.5 V,
VCC = 5.5 V,
VI = 0.4 V
VO = 0
– 0.2 mA
–75
– 275 mA
ICCL
VCC = 5.5 V,
Outputs open
24
35 mA
ICCH
VCC = 5.5 V,
Outputs open
3
7 mA
ICCZ
VCC = 5.5 V,
Outputs open
† All typical values are at VCC = 5 V, TA = 25°C.
‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
3
7 mA
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
tw
Pulse duration
tsu
Setup time, data before LE↓
th
Hold time, data after LE↓
PRE low
CLR low
LE high
High or low
PRE or CLR inactive
High or low
MIN MAX UNIT
7
5
ns
4
1.5
ns
2
3.5
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN TYP MAX
MIN MAX UNIT
tPLH
D
Q
tPHL
tPLH
LE
Q
tPHL
tPLH
PRE
Q
tPHL
tPLH
CLR
Q
tPHL
tPZH
OE
Q
tPZL
tPHZ
OE
Q
tPLZ
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
1.5 4.5
1.5 5.7
1.5
6
1.5
6
1.5
6
1.5
6
1.5
6
1.5
6
2
10
2
10
2
5
2
5
7 1.5
8 1.5
8 1.5
8 1.5
8 1.5
10 1.5
10 1.5
10 1.5
13
2
13
2
7
2
7
2
8
ns
9
10
ns
10
12
ns
12
12
ns
12
15
ns
15
8
ns
8
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