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參數資料
| 型號： | 74AS160 |
| 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位二進制計數器十年 |
| 文件頁數： | 6/11頁 |
| 文件大?。?/td> | 160K |
| 代理商： | 74AS160 |
Setup time
before CLK
↑
ns
tw
Pulse duration
ENP, ENT
’ALS162B, ’ALS163B
UNIT
UNIT
VOL
V
TEST CONDITIONS
PARAMETER
SN54ALS160B THRU SN54ALS163B
SN74ALS160B THRU SN74ALS163B
SYNCHRONOUS 4-BIT DECADE COUNTERS
SDAS024A – D2661, APRIL 1982 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
6
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range:
SN54ALS160B thru SN54ALS163B
SN74ALS160B thru SN74ALS163B
Storage temperature range
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 V
7 V
–55
°
C to 125
°
C
0
°
C to 70
°
C
–65
°
C to 150
°
C
. . . . . . . . . . .
. . . . . . . . . . . . . . .
recommended operating conditions
SN54ALS160B
THRU
SN54ALS163B
MIN
NOM
4.5
2
SN74ALS160B
THRU
SN74ALS163B
MIN
NOM
4.5
2
MAX
5.5
MAX
5.5
VCC
VIH
VIL
IOH
IOL
fclock
Supply voltage
High-level input voltage
Low-level input voltage
High-level output current
Low-level output current
Clock frequency
5
5
V
V
V
0.7
–0.4
0.8
–0.4
mA
mA
MHz
4
8
0
22
0
40
CLR high or low
’ALS160B, ’ALS161B CLR low
A, B, C, D
LOAD
20
20
50
20
25
20
10
20
10
0
12.5
15
15
15
15
15
10
15
10
’ALS160B, ’ALS161B
’ALS162B, ’ALS163B
CLR inactive
CLR low
CLR high (inactive)
tsu
ns
’ALS160B, ’ALS161B
th
TA
Hold time, all synchronous inputs after CLK
↑
Operating free-air temperature
0
0
ns
°
C
–55
125
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ALS160B
THRU
SN54ALS163B
MIN
TYP
SN74ALS160B
THRU
SN74ALS163B
MIN
TYP
MAX
–1.5
MAX
–1.5
VIK
VOH
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V
II = –18 mA
IOH = –0.4 mA
IOL = 4 mA
IOL = 8 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
V
V
VCC–2
VCC–2
0.25
0.4
0.25
0.35
0.4
0.5
0.1
20
–0.2
–112
II
IIH
IIL
IO
ICC
0.1
20
–0.2
–112
mA
μ
A
mA
mA
mA
–30
–30
12
21
12
21
All typical values are at VCC = 5 V, TA = 25
°
C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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