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參數(shù)資料
| 型號(hào)： | 74ACT11161 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Synchronous Presettable 4-Bit Binary Counters(4位同步二進(jìn)制計(jì)數(shù)器) |
| 中文描述： | 同步可預(yù)置4位（4位同步二進(jìn)制計(jì)數(shù)器二進(jìn)制計(jì)數(shù)器） |
| 文件頁(yè)數(shù)： | 7/8頁(yè) |
| 文件大小： | 62K |
| 代理商： | 74ACT11161 |
54ACT11161, 74ACT11161
SYNCHRONOUS 4-BIT BINARY COUNTERS
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
7
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V
±
0.5 V
(unless otherwise noted)
TA = 25
°
C
TYP
54ACT11161
MIN
74ACT11161
MIN
UNIT
MIN
MAX
MAX
MAX
fclock
Clock frequency
MHz
tw
Pulse duration
CLK high or low
CLK low
A, B, C, D
LOAD
ENP, ENT
CLR inactive
CLR low
CLR (high) inactive
ns
Setup time before CLK
b f
b f
↑
tsu
ns
th
Hold time, all synchronous inputs after CLK
↑
ns
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Note 2)
FROM
TO
(INPUT)
(OUTPUT)
PARAMETER
TA = 25
°
C
TYP
54ACT11161
MIN
74ACT11161
MIN
UNIT
MIN
MAX
MAX
MAX
fmax
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
MHz
CLK
RCO
ns
CLK
Any Q
ns
ENT
RCO
ns
CLR
Any Q
RCO
ns
NOTE 2: Load circuits and voltage waveforms are shown in Section 1 of Advanced CMOS Logic Data Book 1990
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
Cpd Power dissipation capacitance
TEST CONDITIONS
CL = 50 pF, f = 1 MHz
TYP
UNIT
pF
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