74HCU4516 Просмотр технического описания (PDF) - Philips Electronics
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производитель
74HCU4516 Datasheet PDF : 14 Pages
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Philips Semiconductors
Binary up/down counter
Product specification
74HC/HCT4516
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
SYMBOL
PARAMETER
74HCT
+25
−40 to +85
min. typ. max. min. max.
tPHL/ tPLH
tPHL
tPLH/ tPHL
tPHL/ tPLH
propagation delay
CP to Qn
propagation delay
MR to Qn
propagation delay
PL to Qn
propagation delay
CP to TC
28 50
63
24 42
53
32 53
66
29 58
73
tPHL/ tPLH
propagation delay
CE to TC
18 31
39
tPLH
propagation delay
MR to TC
31 50
63
tPLH/ tPHL
propagation delay
PL to TC
34 68
85
tTLH/ tTHL output transition time
7 15
19
TEST CONDITIONS
−40 to+125
UNIT
VCC
(V)
WAVEFORMS
min. max.
75 ns 4.5 Fig.7
63 ns 4.5 Fig.10
80 ns 4.5 Fig.9
87 ns 4.5 Fig.7
47 ns 4.5 Fig.8
75 ns 4.5 Fig.10
102 ns 4.5 Fig.9
22 ns 4.5 Fig.9
tW
clock pulse width CP, 16 9
CE HIGH or LOW
20
24
tW
parallel load pulse 16 8
width HIGH
20
24
tW
master rest pulse
20 5
width HIGH
25
30
trem
removal time
23 14
29
35
MR to CP
trem
removal time
17 10
21
26
PL to CP
tsu
set-up time
20 11
25
30
UP/DN to CP
tsu
set-up time
CE to CP
20 9
25
30
tsu
set-up time
Dn to PL
th
hold time
CE to CP
20 9
10 9
25
30
13
15
ns 4.5 Fig.7
ns 4.5 Fig.10
ns 4.5 Fig.10
ns 4.5 Fig.10
ns 4.5 Fig.10
ns 4.5 Fig.8
ns 4.5 Fig.8
ns 4.5 Fig.11
ns 4.5 Fig.8
December 1990
9
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