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參數(shù)資料
| 型號： | SN54AS161FK |
| 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(shù)器十年 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 220K |
| 代理商： | SN54AS161FK |
SN54ALS161B, SN54ALS162B, SN54ALS163B, SN54AS161, SN54AS163
SN74ALS161B, SN74ALS163B, SN74AS161, SN74AS163
SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
SDAS276 – DECEMBER 1994
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54AS161
SN54AS163
TYP
SN74AS161
SN74AS163
TYP
UNIT
MIN
MAX
MIN
MAX
VIK
VOH
VOL
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
II = –18 mA
IOH = –2 mA
IOL = 20 mA
–1.2
–1.2
V
VCC –2
VCC –2
V
0.25
0.5
0.25
0.5
V
LOAD
0.3
0.3
II
ENT
VCC = 5.5 V,
VI = 7 V
0.2
0.2
mA
All others
0.1
0.1
LOAD
60
60
IIH
ENT
VCC = 5.5 V,
VI = 2.7 V
40
40
μ
A
All others
20
20
LOAD
–1.5
–1.5
IIL
ENT
VCC = 5.5 V,
VI = 0.4 V
–1
–1
mA
All others
–0.5
–0.5
IO
ICC
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.
VCC = 5.5 V,
VCC = 5.5 V
VO = 2.25 V
–30
–112
–30
–112
mA
35
53
35
53
mA
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§
SN54AS161
UNIT
SN74AS161
MIN
MAX
MIN
MAX
fmax*
65
75
MHz
tPLH
RCO (with LOAD high)
1
8.5
1
8
CLK
RCO (with LOAD low)
3
17.5
3
16.5
ns
tPHL
tPLH
tPHL
tPLH
tPHL
RCO
2
14
2
12.5
CLK
Any Q
1
7.5
1
7
ns
2
14
2
13
ENT
RCO
1.5
10
1.5
9
ns
1
9.5
1
8.5
tPHL
CLR
Any Q
RCO
2
2
14
14
2
2
13
ns
12.5
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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