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參數(shù)資料
| 型號(hào)： | SN54ALS873BJT |
| 廠商： | Texas Instruments, Inc. |
| 元件分類(lèi)： | 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(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 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
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX
SN54ALS873B
MIN
MAX
2
UNIT
SN74ALS873B
MIN
2
MAX
tPLH
tPHL
tPLH
tPHL
tPHL
tPZH
tPZL
tPHZ
tPLZ
D
Q
23
14
ns
2
17
2
14
LE
Q
8
31
8
22
ns
8
26
8
21
CLR
Q
6
27
6
20
ns
OE
Q
4
24
4
18
ns
4
23
4
18
OE
Q
2
2
12
30
2
2
10
15
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
Input voltage, V
I
Voltage applied to a disabled 3-state output
Operating free-air temperature range, T
A
: SN54AS873A
7 V
7 V
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS873A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
SN54AS873A
MIN
NOM
SN74AS873A
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
0.8
0.8
V
High-level output current
–12
–15
mA
Low-level output current
32
48
mA
°
C
Operating free-air temperature
–55
125
0
70
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