74HCT161 Просмотр технического описания (PDF) - Philips Electronics
Номер в каталоге
Компоненты Описание
Список матч
74HCT161 Datasheet PDF : 12 Pages
| |||
Philips Semiconductors
Presettable synchronous 4-bit binary
counter; asynchronous reset
Product specification
74HC/HCT161
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
SYMBOL PARAMETER
74HC
UNIT
+25
−40 to +85 −40 to +125
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
CP to Qn
61 190
240
22 38
48
18 32
41
285 ns
57
48
tPHL/ tPLH propagation delay
CP to TC
69 215
270
25 43
54
20 37
46
325 ns
65
55
tPHL
propagation delay
MR to Qn
63 210
265
23 42
53
18 36
45
315 ns
63
54
tPHL
propagation delay
MR to TC
63 220
275
23 44
55
18 37
47
330 ns
66
56
tPHL/ tPLH propagation delay
CET to TC
33 150
190
12 30
38
10 26
33
225 ns
45
38
tTHL/ tTLH output transition time
19 75
95
7 15
19
6 13
16
110 ns
22
19
tW
clock pulse width
80 22
100
120
ns
HIGH or LOW
16 8
20
24
14 6
17
20
tW
master reset pulse 80 19
100
120
ns
width; LOW
16 7
20
24
14 6
17
20
trem
removal time
100 19
125
150
ns
MR to CP
20 7
25
30
17 6
21
26
tsu
set-up time
80 25
100
120
ns
Dn to CP
16 9
20
24
14 7
17
20
tsu
set-up time
100 30
125
150
ns
PE to CP
20 11
25
30
17 9
21
26
TEST CONDITIONS
VCC
(V)
WAVEFORMS
2.0 Fig.8
4.5
6.0
2.0 Fig.8
4.5
6.0
2.0 Fig.9
4.5
6.0
2.0 Fig.9
4.5
6.0
2.0 Fig.10
4.5
6.0
2.0 Figs 8 and 10
4.5
6.0
2.0 Fig.8
4.5
6.0
2.0 Fig.9
4.5
6.0
2.0 Fig.9
4.5
6.0
2.0 Fig.11
4.5
6.0
2.0 Fig.11
4.5
6.0
December 1990
7
Share Link: 