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HEF4534B Datasheet(PDF) 8 Page - NXP Semiconductors

Part No. HEF4534B
Description  Real time 5-decade counter
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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HEF4534B Datasheet(HTML) 8 Page - NXP Semiconductors

 
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January 1995
8
Philips Semiconductors
Product specification
Real time 5-decade counter
HEF4534B
LSI
AC CHARACTERISTICS
VSS = 0 V; Tamb =25 °C; CL = 50 pF; input transition times ≤ 20 ns
Output transition times
5
60
120
ns
10 ns
+ (1,0 ns/pF) CL
HIGH to LOW
10
tTHL
30
60
ns
9 ns
+ (0,42 ns/pF) CL
15
20
40
ns
6 ns
+ (0,28 ns/pF) CL
5
60
120
ns
10 ns
+ (1,0 ns/pF) CL
LOW to HIGH
10
tTLH
30
60
ns
9 ns
+ (0,42 ns/pF) CL
15
20
40
ns
6 ns
+ (0,28 ns/pF) CL
VDD
V
SYMBOL
MIN.
TYP.
MAX.
3-state propagation delays
Output disable times
EO
→ On;
5
30
60
ns
EOS
→ OSn
10
tPHZ
25
50
ns
HIGH
15
20
40
ns
540
80
ns
LOW
10
tPLZ
25
50
ns
15
20
40
ns
Output enable times
EO
→ On;
5
35
70
ns
EOS
→ OSn
10
tPZH
20
40
ns
HIGH
15
15
30
ns
5
50
100
ns
LOW
10
tPZL
25
50
ns
15
15
30
ns
Minimum clock pulse
5
70
35
ns
width; CPA, CPS
10
tWCPH
40
20
ns
HIGH
15
30
15
ns
Minimum reset pulse
5
90
45
ns
width; MR, MRsc
10
tWMRH
60
30
ns
HIGH
15
40
20
ns
Recovery time
5
120
60
ns
for MR
10
tRMR
60
30
ns
15
50
25
ns
Recovery time
5
60
30
ns
for MRsc
10
tRMR
40
20
ns
15
30
15
ns
VDD
V
SYMBOL
MIN.
TYP.
MAX.
TYPICAL EXTRAPOLATION
FORMULA


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