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74AHC594 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74AHC594
Description  8-bit shift register with output register
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74AHC594 Datasheet(HTML) 6 Page - NXP Semiconductors

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74AHC_AHCT594_1
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 4 July 2006
6 of 29
Philips Semiconductors
74AHC594; 74AHCT594
8-bit shift register with output register
7.
Functional description
[1]
H = HIGH voltage level;
L = LOW voltage level;
↑ = LOW-to-HIGH transition;
X = don’t care.
8.
Limiting values
[1]
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2]
For SO16 packages: above 70
°C the value of P
tot derates linearly with 8 mW/K.
For (T)SSOP16 packages: above 60
°C the value of P
tot derates linearly with 5.5 mW/K.
For DHVQFN16 packages: above 60
°C the value of P
tot derates linearly with 4.5 mW/K.
Table 3.
Function table[1]
Function
Inputs
SHR
STR
SHCP
STCP
DS
Clear shift register
L
X
X
X
X
Clear storage register
X
L
X
X
X
Load DS into shift register stage 0, advance previous stage data to the next stage
H
X
X
H or L
Transfer shift register data to storage register and outputs Qn
X
H
X
X
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Max
Unit
VCC
supply voltage
−0.5
+7.0
V
VI
input voltage
−0.5
+7.0
V
IIK
input clamping current
VI < −0.5 V
[1] -
−20
mA
IOK
output clamping current
VO < −0.5 V or VO > VCC + 0.5 V
[1] -
±20
mA
IO
output current
VO = −0.5 V to VCC + 0.5 V
-
±25
mA
ICC
quiescent supply current
-
75
mA
IGND
ground current
-
−75
mA
Tstg
storage temperature
−65
+150
°C
Ptot
total power dissipation
Tamb = −40 °C to +125 °C
[2] -
500
mW


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