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74AHC594D Datasheet PDF : 22 Pages
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NXP Semiconductors
74AHC594; 74AHCT594
8-bit shift register with output register
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 15.
Symbol Parameter Conditions
25 °C
−40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ[1] Max Min Max
Min
Max
tW
pulse width SHCP and STCP HIGH or
LOW; see Figure 9 and 10
VCC = 3.0 V to 3.6 V
6.0 -
- 6.5
-
7.0
- ns
VCC = 4.5 V to 5.5 V
5.5 -
- 6.0
-
6.5
- ns
SHR and STR HIGH or LOW;
see Figure 13 and 14
VCC = 3.0 V to 3.6 V
5.0 -
- 5.0
-
5.5
- ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.2
-
5.7
- ns
tsu
set-up time DS to SHCP; see Figure 11
VCC = 3.0 V to 3.6 V
3.5 -
- 3.5
-
4.0
- ns
VCC = 4.5 V to 5.5 V
3.0 -
- 3.0
-
3.5
- ns
SHR to STCP; see Figure 12
VCC = 3.0 V to 3.6 V
8.0 -
- 9.0
-
9.5
- ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.5
- ns
SHCP to STCP; see Figure 10
VCC = 3.0 V to 3.6 V
8.0 -
- 8.5
-
9.0
- ns
VCC = 4.5 V to 5.5 V
5.0 -
- 5.0
-
5.5
- ns
th
hold time
DS to SHCP; see Figure 11
VCC = 3.0 V to 3.6 V
1.5 -
- 1.5
-
2.0
- ns
VCC = 4.5 V to 5.5 V
2.0 -
- 2.0
-
2.5
- ns
trec
recovery time SHR to SHCP; see Figure 13
VCC = 3.0 V to 3.6 V
4.2 -
- 4.8
-
5.3
- ns
VCC = 4.5 V to 5.5 V
2.9 -
- 3.3
-
3.8
- ns
STR to STCP; see Figure 14
VCC = 3.0 V to 3.6 V
4.6 -
- 5.3
-
5.8
- ns
VCC = 4.5 V to 5.5 V
3.2 -
- 3.7
-
4.3
- ns
CPD
power
fi = 1 MHz; VI = GND to VCC [2] -
55 -
-
-
-
- pF
dissipation
capacitance
74AHCT594; VCC = 4.5 V to 5.5 V
tPLH
LOW to HIGH SHCP to Q7S; see Figure 9
propagation
delay
CL = 15 pF
CL = 50 pF
STCP to Qn; see Figure 10
- 3.8 6.3 1.7
7.2
1.7
7.8 ns
- 4.8 8.0 2.2
9.1
2.2
9.9 ns
CL = 15 pF
CL = 50 pF
- 3.5 5.7 1.8
6.5
1.8
7.1 ns
- 4.6 7.7 2.6
8.8
2.6
9.6 ns
74AHC_AHCT594_2
Product data sheet
Rev. 02 — 9 June 2008
© NXP B.V. 2008. All rights reserved.
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