74LVC594A 데이터 시트보기 (PDF) - NXP Semiconductors.
부품명
상세내역
일치하는 목록
74LVC594A Datasheet PDF : 19 Pages
| |||
NXP Semiconductors
74LVC594A
8-bit shift register with output register
7. Functional description
Table 3. Function table[1]
Input
SHCP STCP SHR STR DS
X
X
L
X
X
X
X
X
L
X
X
↑
L
H
X
↑
X
H
X
H
X
↑
H
H
X
↑
↑
H
H
X
[1] H = HIGH voltage state;
L = LOW voltage state;
↑ = LOW-to-HIGH transition;
X = don’t care;
NC = no change;
Output
Q7S Qn
L
NC
NC L
L
L
Q6S NC
NC QnS
Q6S QnS
Function
a LOW-state on SHR only affects the shift register
a LOW-state on STR only affects the storage register
empty shift register loaded into storage register
logic HIGH level shifted into shift register stage 0. Contents of all
shift register stages shifted through, e.g. previous state of stage 6
(internal Q6S) appears on the serial output (Q7S).
contents of shift register stages (internal QnS) are transferred to
the storage register and parallel output stages
contents of shift register shifted through; previous contents of the
shift register is transferred to the storage register and the parallel
output stages
8. Limiting values
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
IIK
input clamping current
VI < 0 V
VI
input voltage
IOK
output clamping current
VO > VCC or VO < 0 V
VO
output voltage
3-state
output HIGH or LOW state
IO
output current
VO = 0 V to VCC
−0.5 +6.5
V
−50
-
mA
[1] −0.5
+6.5
V
-
±50
mA
[1] −0.5
6.5
V
[1] −0.5
VCC + 0.5
V
-
±50
mA
ICC
IGND
Tstg
Ptot
supply current
ground current
storage temperature
total power dissipation
Tamb = −40 °C to +125 °C
-
100
mA
−100 -
mA
−65
+150
°C
[2] -
500
mW
[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 Ptot derates linearly with 8 mW/K.
For TSSOP16 packages: above 60 °C the value of Ptot derates linearly with 5.5 mW/K.
For DHVQFN16 packages: above 60 °C the value of Ptot derates linearly with 4.5 mW/K.
74LVC594A_1
Product data sheet
Rev. 01 — 24 May 2007
© NXP B.V. 2007. All rights reserved.
5 of 19
Share Link: 