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參數(shù)資料
| 型號： | 74HC161 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Presettable synchronous 4-bit binary counter; asynchronous reset |
| 中文描述： | 可預(yù)置同步4位二進制計數(shù)器;異步復(fù)位 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 83K |
| 代理商： | 74HC161 |
December 1990
9
Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
counter; asynchronous reset
74HC/HCT161
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: MSI
Note to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
MR
CP
CEP
D
n
CET
PE
0.95
1.10
0.25
0.25
0.75
0.30
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max.
min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
CP to Q
n
propagation delay
CP to TC
propagation delay
MR to Q
n
propagation delay
MR to TC
propagation delay
CET to TC
output transition time
23
43
54
65
ns
4.5
Fig.8
t
PHL
/ t
PLH
28
48
60
72
ns
4.5
Fig.8
t
PHL
29
46
58
69
ns
4.5
Fig.9
t
PHL
30
51
64
77
ns
4.5
Fig.9
t
PHL
/ t
PLH
17
35
44
53
ns
4.5
Fig.10
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Figs 8 and 10
t
W
clock pulse width
HIGH or LOW
master reset pulse
width; LOW
removal time
MR to CP
16
7
20
24
ns
4.5
Fig.8
t
W
20
10
25
30
ns
4.5
Fig.9
t
rem
20
6
25
30
ns
4.5
Fig.9
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 74HC161AFEL | 制造商:ON Semiconductor 功能描述: |
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| 74HC161D,652 | 功能描述:計數(shù)器 IC SYNC 4-BIT BINARY COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HC161D,653 | 功能描述:計數(shù)器 IC SYNC 4-BIT BINARY COUNTER RoHS:否 制造商:NXP Semiconductors 計數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計數(shù)法: 計數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel |
| 74HC161D,653-CUT TAPE | 制造商:NXP 功能描述:74HC161 Series 6 V Single 4-Bit Presettable Synchronous Binary Counter-SOIC-16 |
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