SN74BCT29843 Datasheet, PDF (2/5 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
logic symbol^†
logic diagram (positive logic)
1
OE
14
PRE
11
CLR ₁₃
LE
2
1D
3
2D
4
3D
5
4D
6
5D
7
6D
8
7D
9
8D
10
9D
EN
S2
R
C1
1D
2
OE ¹
PRE ¹⁴
CLR ¹¹
23
1Q
22
2Q
21
3Q
20
4Q
19
5Q
18
6Q
17
7Q
16
8Q
15
9Q
LE ¹³
2
1D
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984}
and IEC Publication 617-12.
S
C1
1D
R
To Eight Other Channels
23 _1Q
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)^‡
Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Voltage range applied to any output in the disabled or power-off state, V_O . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Voltage range applied to any output in the high state, V_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to V_CC
Input clamp current, I_IK (V_I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 mA
Current into any output in the low state, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
‡ _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. This is a stress rating only, and}
functional operation of the device at these or any other conditions beyond those indicated in the “recommended operating conditions” section of
this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
recommended operating conditions
VCC
VIH
VIL
IIK
IOH
IOL
TA
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature
MIN NOM MAX UNIT
4.5
5 5.5 V
2
V
0.8 V
–18 mA
– 24 mA
48 mA
0
70 °C
2–2
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