74HC299 Просмотр технического описания (PDF) - Philips Electronics
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74HC299 Datasheet PDF : 11 Pages
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Philips Semiconductors
8-bit universal shift register; 3-state
Product specification
74HC/HCT299
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver (parallel I/Os)
standard (serial outputs)
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
SYMBOL PARAMETER
tPHL/ tPLH propagation delay
CP to Q0, Q7
tPHL/ tPLH propagation delay
CP to I/On
tPHL/
propagation delay
MR to Q0, Q7 or I/On
tPZH
3-state output enable time
OEn to I/On
tPZL
3-state output enable time
OEn to I/On
tPHZ
3-state output disable time
OEn to I/On
tPLZ
3-state output disable time
OEn to I/On
tTHL/ tTLH output transition time
bus driver (I/On)
tTHL/ tTLH output transition time
standard (Q0, Q7)
tW
clock pulse width
HIGH or LOW
tW
master reset pulse width
LOW
Tamb (°C)
TEST CONDITIONS
+25
min. typ. max.
74HC
−40 to +85
min. max.
−40 to +125
min. max.
UNIT VCC WAVEFORMS
(V)
66 200
250
24 40
50
19 34
43
300 ns
60
51
2.0 Fig.6
4.5
6.0
66 200
250
24 40
50
19 34
43
300 ns
60
51
2.0 Fig.6
4.5
6.0
66 200
250
24 40
50
19 34
43
300 ns
60
51
2.0 Fig.7
4.5
6.0
50 155
195
18 31
39
14 26
33
235 ns
47
40
2.0 Fig.9
4.5
6.0
41 130
165
15 26
33
12 22
28
195 ns
39
33
2.0 Fig.9
4.5
6.0
66 185
230
24 37
46
19 31
39
280 ns
56
48
2.0 Fig.9
4.5
6.0
55 155
195
20 31
39
16 26
33
235 ns
47
40
2.0 Fig.9
4.5
6.0
14 60
75
5 12
15
4 10
13
90 ns 2.0 Fig.6
18
4.5
15
6.0
19 75
95
7 15
19
6 13
16
110 ns
22
19
2.0 Fig.6
4.5
6.0
80 17
100
120
16 6
20
24
14 5
17
20
ns 2.0 Fig.6
4.5
6.0
80 19
100
120
16 7
20
24
14 6
17
20
ns 2.0 Fig.7
4.5
6.0
December 1990
6
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