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CD74HCT4520 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
描述:
高速 CMOS 逻辑双路二进制加计数器
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CD74HCT4520数据手册
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4
HCT TYPES
High Level Input
Voltage
V
IH
- - 4.5 to 5.5 2 - - 2 - 2 - V
Low Level Input
Voltage
V
IL
- - 4.5 to 5.5 - - 0.8 - 0.8 - 0.8 V
High Level Output
Voltage
CMOS Loads
V
OH
V
IH
or V
IL
-0.02 4.5 4.4 - - 4.4 - 4.4 - V
High Level Output
Voltage
TTL Loads
-4 4.5 3.98 - - 3.84 - 3.7 - V
Low Level Output
Voltage
CMOS Loads
V
OL
V
IH
or V
IL
0.02 4.5 - - 0.1 - 0.1 - 0.1 V
Low Level Output
Voltage
TTL Loads
4 4.5 - - 0.26 - 0.33 - 0.4 V
Input Leakage
Current
I
I
V
CC
and
GND
0 5.5 - - ±0.1 - ±1-±1 µA
Quiescent Device
Current
I
CC
V
CC
or
GND
0 5.5 - - 8 - 80 - 160 µA
Additional Quiescent
Device Current Per
Input Pin: 1 Unit Load
∆I
CC
(Note 2)
V
CC
-2.1
- 4.5 to 5.5 - 100 360 - 450 - 490 µA
NOTE:
2. For dual-supply systems theoretical worst case (V
I
= 2.4V, V
CC
= 5.5V) specification is 1.8mA.
DC Electrical Specifications (Continued)
PARAMETER SYMBOL
TEST
CONDITIONS
V
CC
(V)
25
o
C -40
o
CTO85
o
C
-55
o
C TO
125
o
C
UNITSV
I
(V) I
O
(mA) MIN TYP MAX MIN MAX MIN MAX
HCT Input Loading Table
INPUT UNIT LOADS
MR 1.2
CP 0.25
ENABLE 0.5
NOTE: Unit Load is ∆I
CC
limit specified in DC Electrical Table, e.g.,
360µA max at 25
o
C.
Prerequisite for Switching Specifications
PARAMETER SYMBOL V
CC
(V)
25
o
C -40
o
C TO 85
o
C -55
o
C TO 125
o
C
UNITSMIN TYP MAX MIN MAX MIN MAX
HC TYPES
Maximum Clock
Frequency
f
MAX
2 6--5-4-MHz
4.5 30 - - 24 - 20 - MHz
6 35 - - 28 - 24 - MHz
CP Pulse Width t
W
2 80 - - 100 - 120 - ns
4.5 16 - - 20 - 24 - ns
6 14 - - 17 - 20 - ns
MR Pulse Width t
W
2 100 - - 125 - 150 - ns
4.5 20 - - 25 - 30 - ns
6 17 - - 21 - 26 - ns
CD74HC4518, CD54HC4520, CD74HC4520, CD74HCT4520
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