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| 型號： | SN54ALS163BFK |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS |
| 中文描述： | 同步4位二進(jìn)制計(jì)數(shù)器十年 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大小： | 220K |
| 代理商： | SN54ALS163BFK |
SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163
SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SDAS276 – DECEMBER 1994
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 3)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500
,
TA = MIN to MAX
SN54ALS162B
SN54ALS163B
UNIT
SN74ALS163B
MIN
MAX
MIN
MAX
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
35
40
MHz
CLK
RCO
5
25
5
20
ns
5
25
5
20
CLK
Any Q
4
18
4
15
ns
6
25
6
20
ENT
RCO
3
3
16
16
3
3
13
13
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
Operating free-air temperature range, T
A
: SN54AS161, SN54AS163
7 V
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–55
°
C to 125
°
C
0
°
C to 70
°
C
–65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
SN74AS161, SN74AS163
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
SN54AS161
SN54AS163
SN74AS161
SN74AS163
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
VCC
VIH
VIL
IOH
IOL
fclock*
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
–2
–2
mA
Low-level output current
20
20
mA
Clock frequency
0
65
0
75
MHz
t *
tw*
Pulse duration
CLR high or low
′
AS161
A, B, C, D
7.7
6.7
ns
CLR low
10
8
10
8
LOAD
10
8
tsu*
Setup time
before CLK
↑
ENP, ENT
′
AS161
10
8
ns
CLR inactive
10
8
′
AS163
CLR low
14
12
CLR high (inactive)
10
9
th*
TA
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
Hold time, all synchronous inputs after CLK
↑
Operating free-air temperature
2
0
ns
°
C
–55
125
0
70
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