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SN74ALS873BDW Datasheet(PDF) 2 Page - Texas Instruments

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Part No. SN74ALS873BDW
Description  DUAL 4-BIT D-TYPE LATCHES WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS873B, SN54AS873A, SN74ALS873B, SN74AS873A
DUAL 4-BIT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDAS036D – APRIL 1982 – REVISED AUGUST 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
logic diagram (each quad latch, positive logic)
2OE
1CLR
1OE
EN
2
C1
23
1LE
1D
3
1D1
4
1D2
5
1D3
6
1D4
1Q1
22
1Q2
21
1Q3
20
1Q4
19
C
1
EN
11
C1
14
2LE
1D
7
2D1
8
2D2
9
2D3
10
2D4
2Q1
18
2Q2
17
2Q3
16
2Q4
15
C
13
2CLR
R
C1
1D
D1
Q1
R
C1
1D
D2
Q2
R
C1
1D
D3
Q3
R
C1
1D
D4
Q4
OE
LE
CLR
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the DW, JT, and NT packages.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54ALS873B
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS873B
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. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN54ALS873B
SN74ALS873B
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.7
0.8
V
IOH
High-level output current
–1
– 2.6
mA
IOL
Low-level output current
12
24
mA
TA
Operating free-air temperature
–55
125
0
70
°C




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