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參數(shù)資料
| 型號： | SN54ALS873BJT |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | DUAL 4-BIT D-TYPE LATCHES WITH 3-STATE OUTPUTS |
| 中文描述： | 雙4位D型鎖存器具有三態(tài)輸出 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 121K |
| 代理商： | SN54ALS873BJT |
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
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, V
CC
Input voltage, V
I
Operating free-air temperature range, T
A
: SN54ALS873B
7 V
7 V
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS873B
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55
°
C to 125
°
C
0
°
C to 70
°
C
–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
MIN
NOM
SN74ALS873B
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IOH
IOL
TA
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.7
0.8
V
High-level output current
–1
–2.6
mA
Low-level output current
12
24
mA
°
C
Operating free-air temperature
–55
125
0
70
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