PI74FCT2841T Ver la hoja de datos (PDF) - Pericom Semiconductor
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PI74FCT2841T Datasheet PDF : 7 Pages
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PI74FCT841T/843T/845T
(25Ω SERIES) P174FCT2841T
BUS INTERFACE LATCHES 1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
PI74FCT841/2841T 10-Bit Latch
Product Configuration
OE 1
24 Vcc
D0 2
23 Y0
D1 3
22 Y1
24-PIN
D2 4
P24
21 Y2
D3 5 Q24 20 Y3
D4 6 R24 19 Y4
D5 7 S24 18 Y5
D6 8
17 Y6
D7 9
16 Y7
D8 10
15 Y8
D9 11
14 Y9
GND 12
13 LE
Product Pin Description
Pin Name
YN
DN
LE
OE
CLR
PRE
GND
VCC
Description
3-State Latch Outputs
Latch Data Inputs
Latch Enable Input
Output Enable Control
Clear Latch
Preset Latch High, Preset Overrides CLR
Ground
Power
PI74FCT843T 9-Bit Latch Product Configuration
OE
D0
D1
D2
D3
D4
D5
D6
D7
D8
CLR
GND
1
24
2
23
3
22
4 24-PIN 21
5
P24 20
Q24
6
R24 19
7
S24 18
8
17
9
16
10
15
11
14
12
13
Vcc
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
PRE
LE
PI74FCT845T 8-Bit Latch Product Configuration
OE1
OE2
D0
D1
D2
D3
D4
D5
D6
D7
CLR
GND
1
24
2
23
3
22
4 24-PIN 21
P24
5
Q24 20
6
R24 19
7
S24 18
8
17
9
16
10
15
11
14
12
13
Vcc
OE3
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
PRE
LE
Truth Table(1)
Function
High-Z
Inputs
CLR PRE OE LE
HHHX
HHHH
HHHH
Outputs Internal
DN YN
QN
XZ
X
LZ
L
HZ
H
Latched
(High Z)
H H H L X Z NC
Transparent
H H L HL L
L
H H L HH H
H
Latched
H H L L X NC NC
Preset
H L L XX H
H
Clear
L H L XX L
L
Preset
L L L XX H
H
Latched (High Z) L H H L X Z
L
Latched (High Z) H L H L X Z
H
1. H = High Voltage Level
L = Low Voltage Level
X = Don't Care
NC = No Change
Z = High Impedance
2
PS2025A 03/11/96
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