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Part Name
Description
HEF4534B View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
HEF4534B
LSI Real time 5-decade counter
Philips Electronics
HEF4534B Datasheet PDF : 10 Pages
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Philips Semiconductors
Real time 5-decade counter
Product specification
HEF4534B
LSI
Output transition times
HIGH to LOW
LOW to HIGH
V
DD
V
SYMBOL MIN. TYP. MAX.
TYPICAL EXTRAPOLATION
FORMULA
5
10 t
THL
15
5
10 t
TLH
15
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
10 ns
+
(1,0 ns/pF) C
L
9 ns
+
(0,42 ns/pF) C
L
6 ns
+
(0,28 ns/pF) C
L
10 ns
+
(1,0 ns/pF) C
L
9 ns
+
(0,42 ns/pF) C
L
6 ns
+
(0,28 ns/pF) C
L
AC CHARACTERISTICS
V
SS
= 0 V; T
amb
= 25
°
C; C
L
= 50 pF; input transition times
≤
20 ns
V
DD
V
SYMBOL MIN. TYP. MAX.
3-state propagation delays
Output disable times
EO
→
O
n
;
EOS
→
OS
n
HIGH
5
10
t
PHZ
15
5
LOW
10
t
PLZ
15
Output enable times
EO
→
O
n
;
EOS
→
OS
n
HIGH
5
10
t
PZH
15
5
LOW
10
t
PZL
15
Minimum clock pulse
5
width; CPA, CPS
HIGH
10
t
WCPH
15
Minimum reset pulse
5
width; MR, MR
sc
HIGH
10
t
WMRH
15
Recovery time
5
for MR
10
t
RMR
15
Recovery time
5
for MR
sc
10
t
RMR
15
30 60 ns
25 50 ns
20 40 ns
40 80 ns
25 50 ns
20 40 ns
35 70 ns
20 40 ns
15 30 ns
50 100 ns
25 50 ns
15 30 ns
70 35
ns
40 20
ns
30 15
ns
90 45
ns
60 30
ns
40 20
ns
120 60
ns
60 30
ns
50 25
ns
60 30
ns
40 20
ns
30 15
ns
January 1995
8
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