Datasheet

74AHC_AHCT594_2 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 02 — 9 June 2008 8 of 22
NXP Semiconductors
74AHC594; 74AHCT594
8-bit shift register with output register
11. Dynamic characteristics
I
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
=0Vto5.5V
- - 0.1 - 1.0 - 2.0 µA
I
CC
supply current V
I
=V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
- - 4.0 - 40 - 80 µA
C
I
input
capacitance
V
I
=V
CC
or GND - 3 10 - 10 - 10 pF
74AHCT594
V
IH
HIGH-level
input voltage
V
CC
= 4.5 V to 5.5 V 2.0 - - 2.0 - 2.0 - V
V
IL
LOW-level
input voltage
V
CC
= 4.5 V to 5.5 V - - 0.8 - 0.8 - 0.8 V
V
OH
HIGH-level
output voltage
V
I
= V
IH
or V
IL
I
O
= −50 µA; V
CC
= 4.5 V 4.4 4.5 - 4.4 - 4.4 - V
I
O
= −8.0 mA; V
CC
= 4.5 V 3.94 - - 3.80 - 3.70 - V
V
OL
LOW-level
output voltage
V
I
= V
IH
or V
IL
I
O
= 50 µA; V
CC
= 4.5 V - 0 0.1 - 0.1 - 0.1 V
I
O
= 8 mA; V
CC
= 4.5 V - - 0.36 - 0.44 - 0.55 V
I
I
input leakage
current
V
I
= 5.5 V or GND;
V
CC
=0Vto5.5V
- - 0.1 - 1.0 - 2.0 µA
I
CC
supply current V
I
=V
CC
or GND; I
O
= 0 A;
V
CC
= 5.5 V
- - 4.0 - 40 - 80 µA
∆I
CC
additional
supply current
per input pin;
V
I
=V
CC
− 2.1 V; other pins
at V
CC
or GND; I
O
= 0 A;
V
CC
= 4.5 V to 5.5 V
- - 1.35 - 1.5 - 1.5 mA
C
I
input
capacitance
V
I
=V
CC
or GND - 3 10 - 10 - 10 pF
Table 6. Static characteristics
…continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit
Min Typ Max Min Max Min Max
Table 7. Dynamic characteristics
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
74AHC594
t
PLH
LOW to HIGH
propagation
delay
SHCP to Q7S; see Figure 9
V
CC
= 3.0 V to 3.6 V
C
L
= 15 pF - 5.2 8.5 2.2 9.7 2.2 10.6 ns
C
L
= 50 pF - 7.4 11.5 3.0 13.2 3.0 14.3 ns
V
CC
= 4.5 V to 5.5 V
C
L
= 15 pF - 3.8 6.3 1.7 7.2 1.7 7.8 ns
C
L
= 50 pF - 4.8 8.0 2.4 9.1 2.4 10.0 ns