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74HC299 Datasheet, PDF (13/24 Pages) NXP Semiconductors – 8-bit universal shift register; 3-state
NXP Semiconductors
74HC299; 74HCT299
8-bit universal shift register; 3-state
Table 7. Dynamic characteristics …continued
GND (ground = 0 V); for test circuit, see Figure 11.
Symbol Parameter
Conditions
25 °C
Min Typ Max
tt
transition time bus driver (I/On); see Figure 7
[3]
VCC = 4.5 V
-
5 12
standard (Q0, Q7); see Figure 7
VCC = 4.5 V
-
7 15
tW
pulse width
clock HIGH or LOW; see Figure 7
VCC = 4.5 V
20 10 -
master reset LOW; see Figure 8
VCC = 4.5 V
ten
enable time
OEn to I/On; see Figure 10
VCC = 4.5 V
tPHZ
HIGH to
OEn to I/On; see Figure 10
OFF-state
propagation
VCC = 4.5 V
delay
20 11 -
[4]
-
[5]
19 30
- 24 37
tPLZ
LOW to
OEn to I/On; see Figure 10
OFF-state
propagation
VCC = 4.5 V
delay
- 20 32
trec
recovery time MR to CP; see Figure 8
VCC = 4.5 V
tsu
set-up time
I/On, DSR, DSL to CP;
see Figure 7
10 2
-
VCC = 4.5 V
S0, S1 to CP; see Figure 9
25 14 -
VCC = 4.5 V
th
hold time
I/On, DSR, DSL to CP;
see Figure 7
32 18 -
VCC = 4.5 V
S0, S1 to CP; see Figure 9
0 −11 -
VCC = 4.5 V
fmax
maximum
CP input; see Figure 7
frequency
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
0 −17 -
25 42 -
- 46 -
−40 °C to
+85 °C
Min Max
- 15
- 19
25 -
25 -
- 38
- 46
- 40
9
-
31 -
40 -
0
-
0
-
20 -
-
-
−40 °C to Unit
+125 °C
Min Max
- 18 ns
- 22 ns
30 - ns
30 - ns
- 45 ns
- 56 ns
- 48 ns
11 - ns
38 - ns
48 - ns
0
- ns
0
- ns
17 - MHz
-
- MHz
[1] tpd is the same as tPHL and tPLH.
[2] tpd is the same as tPHL.
[3] tt is the same as tTHL and tTLH.
[4] ten is the same as tPZH and tPZL.
[5] tdis is the same as tPHZ and tPLZ.
74HC_HCT299_3
Product data sheet
Rev. 03 — 28 July 2008
© NXP B.V. 2008. All rights reserved.
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