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PI74FCT2823T датащи(PDF) 2 Page - Pericom Semiconductor Corporation

номер детали PI74FCT2823T
подробное описание детали  Fast CMOS Bus Interface Registers
PDF  7 Pages
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производитель  PERICOM [Pericom Semiconductor Corporation]
домашняя страница  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI74FCT2823T датащи(HTML) 2 Page - Pericom Semiconductor Corporation

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PS2023A 03/11/96
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PI74FCT821T/823T/825T
(25
Ω
Ω
Ω
Ω
Ω Series) P174FCT2821T/2823T
BUS INTERFACE REGISTERS
Pin Name
Description
OE
Output Enable Input (Active LOW)
CP
Clock Pulse for the register. Enters data on
LOW-to-HIGH transition
DN
Data Inputs
YN
3-State Outputs
CLR
Clear Input (Active LOW)
(823/825/2823 Only)
EN
Clock Enable Input (Active LOW)
GND
Ground
VCC
Power
Product Pin Description
PI74FCT821/2821T Product Pin Configuration
PI74FCT823/2823T Product Pin Configuration
PI74FCT825T Product Pin Configuration
PI74FCT821/823/825/2821/2823T Truth Table
(1)
Inputs
Outputs Internal
Function CLR EN
OE
CP
DN
YN
QN
High-Z
H
L
H
↑
LZ
L
HL
H
↑
HZ
H
Clear
L
XHXX
Z
L
LX
LX
X
L
L
Hold
HHHXX
Z
NC
HH
L
X
X
NC
NC
Load
H
L
H
↑
LZ
L
HL
H
↑
HZ
H
HL
L
↑
LL
L
HL
L
↑
HH
H
1.
H = High Voltage Level
L = Low Voltage Level
X = Don't Care
Z = High Impedance
NC = No Change
↑ = LOW-to-HIGH transition
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
OE
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
GND
Vcc
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
CP
24-PIN
P24
Q24
R24
S24
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
OE1
D0
D1
D2
D3
D4
D5
D6
D7
D8
CLR
GND
Vcc
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
EN
CP
24-PIN
P24
Q24
R24
S24
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
OE1
OE2
D0
D1
D2
D3
D4
D5
D6
D7
CLR
GND
Vcc
OE3
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
EN
CP
24-PIN
P24
Q24
R24
S24



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