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HCF40193 数据表(PDF) 7 Page - STMicroelectronics

部件名 HCF40193
功能描述  PRESETTABLE UP/DOWN COUNTERS (DUAL CLOCK WITH RESET) BINARY TYPE
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

HCF40193 数据表(HTML) 7 Page - STMicroelectronics

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HCF40193B
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DYNAMIC ELECTRICAL CHARACTERISTICS (Tamb = 25°C, CL = 50pF, RL = 200KΩ, tr = tf = 20 ns)
(*) The time required for Reset or Preset Enable control to be removed before clocking (see timing diagram).
Symbol
Parameter
Test Condition
Value (*)
Unit
VDD (V)
Min.
Typ.
Max.
tPLH tPHL Propagation Delay Time
Clock Up or Clock Down to
Q Reset to Q
5
250
500
ns
10
120
240
15
90
180
PE to Q
5
200
400
ns
10
100
200
15
70
140
Clock Up to Carry
Clock Down to Borrow
5
160
320
ns
10
80
160
15
60
120
Reset or PR to Borrow or
Carry
5
300
600
ns
10
150
300
15
110
220
tTHL tTLH Transition Time
5
100
200
ns
10
50
100
15
40
80
trem*
Removal Time
Reset or PE
580
40
ns
10
40
20
15
30
15
tW
Clock Input Pulse Width
Reset
5
480
240
ns
10
300
150
15
260
130
PE
5
120
240
ns
10
85
170
15
70
140
Clock
5
90
180
ns
10
45
90
15
30
60
tr tf
Clock Input Rise or Fall
Time
515
µs
10
15
15
5
fCL
Maximum Clock Input
Frequency
52
4
MHz
10
5
8
15
5.5
11



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