參數(shù)資料
型號(hào): 74HC6323A
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Programmable ripple counter with oscillator; 3-state
中文描述: 紋波計(jì)數(shù)器的可編程振蕩器,3態(tài)
文件頁(yè)數(shù): 10/15頁(yè)
文件大小: 90K
代理商: 74HC6323A
September 1993
10
Philips Semiconductors
Product specification
Programmable ripple counter with
oscillator; 3-state
74HC/HCT6323A
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
Note to the 74HCT AC Characteristics
1.
t
PZH
only applicable in the divide-by-1 mode and X1 must be HIGH.
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITION
25
40 to 85
40 to 125
V
CC
(V)
V
I
OTHER
MIN
TYP
MAX
MIN
MAX
MIN
MAX
t
PHL
/t
PLH
propagation
delay X1 to
OUT
divide-by-1
propagation
delay X1 to
OUT
divide-by-2
propagation
delay X1 to
OUT
divide-by-4
propagation
delay X1 to
OUT
divide-by-8
3-state output
disable time
MR to OUT
3-state output
enable time
MR to OUT
3-state output
enable time
MR to OUT
output
transition time
clock pulse
width X1,
HIGH or LOW
master reset
pulse width
MR; LOW
removal time
MR to X1
maximum clock
pulse frequency
24
40
50
60
ns
4.5
Fig.7
S1 = GND
S2 = GND
t
PHL
/t
PLH
29
50
62
75
ns
4.5
Fig.7
S1 = GND
S2 = V
CC
t
PHL
/t
PLH
35
60
75
90
ns
4.5
Fig.7
S1 = V
CC
S2 = GND
t
PHL
/t
PLH
40
70
87
105
ns
4.5
Fig.7
S1 = V
CC
S2 = V
CC
t
PLZ
/t
PHZ
21
35
43
52
ns
4.5
Fig.8
t
PZ
16
30
37
45
ns
4.5
Fig.8
t
PZH
22
38
47
57
ns
4.5
Fig.8
see note 1
t
THL
/t
TLH
5
12
15
19
ns
4.5
Fig.7
t
W
10
6
12
15
ns
4.5
Fig.7
t
W
16
8
20
24
ns
4.5
Fig.9
t
rem
24
12
30
36
ns
4.5
Fig.9
f
max
50
85
40
33
MHz
4.5
Fig.7
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