參數(shù)資料
型號(hào): MC74LVX595M
廠商: ON SEMICONDUCTOR
元件分類: 計(jì)數(shù)移位寄存器
英文描述: LV/LV-A/LVX/H SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16
封裝: EIAJ, SOIC-16
文件頁數(shù): 7/14頁
文件大?。?/td> 339K
代理商: MC74LVX595M
MC74LVX595
http://onsemi.com
2
FUNCTION TABLE
Operation
Inputs
Resulting Function
Reset
(SCLR)
Serial
Input
(SI)
Shift
Clock
(SCK)
Reg
Clock
(RCK)
Output
Enable
(OE)
Shift
Register
Contents
Storage
Register
Contents
Serial
Output
(SQH)
Parallel
Outputs
(QA QH)
Clear shift register
L
X
L, H, ↓
L
U
L
U
Shift data into shift
register
H
D
L, H, ↓
L
D→SRA;
SRN→SRN+1
U
SRG→SRH
U
Registers remains
unchanged
H
X
L, H, ↓
X
L
U
**
U
**
Transfer shift register
contents to storage
register
H
X
L, H, ↓
L
U
SRNSTRN
*
SRN
Storage register remains
unchanged
X
L, H, ↓
L
*
U
*
U
Enable parallel outputs
X
L
*
**
*
Enabled
Force outputs into high
impedance state
X
H
*
**
*
Z
SR = shift register contents
D = data (L, H) logic level
↓ = HightoLow
* = depends on Reset and Shift Clock inputs
STR = storage register contents U = remains unchanged
↑ = LowtoHigh
** = depends on Register Clock input
Figure 1. Pin Assignment
SERIAL
DATA
INPUT
14
11
10
12
13
SCK
SCLR
RCK
OE
SHIFT
REGISTER
STORAGE
REGISTER
15
1
2
3
4
5
6
7
9
QA
QB
QC
QD
QE
QF
QG
QH
SQH
SI
PARALLEL
DATA
OUTPUTS
SERIAL
DATA
OUTPUT
OE
RSK
SI
14
15
QA
EN3
12
13
C2
1D
Figure 2. IEC Logic Symbol
SRG8
SCLR
10
SCK
11
C/1
R
2D
3
1
2
3
4
5
6
7
9
QB
QC
QD
QE
QF
QG
QH
SQH
2D
3
Figure 3. Logic Diagram
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
RCK
OE
SI
QA
VCC
SQH
SCLR
SCK
QE
QD
QC
QB
GND
QH
QG
QF
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