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IDT74FCT841ASOB Datasheet(PDF) 2 Page - Integrated Device Technology

Part # IDT74FCT841ASOB
Description  HIGH-PERFORMANCE CMOS BUS INTERFACE LATCHES
PDF  7 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT74FCT841ASOB Datasheet(HTML) 2 Page - Integrated Device Technology

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2
IDT54/74FCT841A/B/C
HIGH-PERFORMANCE CMOS BUS INTERFACE LATCHES
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
Y0
Y1
Y2
Y3
Y4
Y6
LE
Y5
Y7
VCC
P24-1
D24-1
E24-1
&
SO24-2
D8
D9
Y8
Y9
DIP/CERPACK/SOIC
TOP VIEW
INDEX
D2
Y2
Y3
Y4
NC
Y5
LCC
TOP VIEW
L28-1
D3
D4
NC
D5
D6
D7
Y6
Y7
32
20
19
1
4
5
6
7
8
18
17
16
15
14
9
10
11
12 13
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
10
13
14
15
16
17
18
19
20
11
12
21
22
23
24
2607 drw 02
2607 drw 03
PIN DESCRIPTION
FUNCTION TABLE
(1)
Name
I/O
Description
CLR
I
When
CLR is LOW, the outputs are
LOW if
OE is LOW. When CLR is HIGH,
data can be entered into the latch.
DI
I
The latch data inputs.
LE
I
The latch enable input. The latches are
transparent when LE is HIGH. Input
data is latched on the HIGH-to-LOW
transition.
YI
O
The 3-state latch outputs.
OE
I
The output enable control. When
OE is
LOW, the outputs are enabled. When
OE is HIGH, the outputs (Y I) are in the
high-impedance (off) state.
PRE
I
Preset
line. When
PRE is LOW, the
outputs are HIGH if
OE is LOW. Preset
overrides
CLR.
2607 tbl 01
Inputs
Inter-
nal
Out-
puts
CLR
CLR PRE
PRE OE
OE LE
DI
QI
YI
Function
H
H
H
X
X
X
Z
High Z
H
H
H
H
L
L
Z
High Z
H
H
H
H
H
H
Z
High Z
H
H
H
L
X
NC
Z
Latched (High Z)
H
H
L
H
L
L
L
Transparent
H
H
L
H
H
H
H
Transparent
H
H
L
L
X
NC
NC
Latched
H
L
L
X
X
H
H
Preset
L
H
L
X
X
L
L
Clear
L
L
L
X
X
H
H
Preset
L
H
H
L
X
L
Z
Latched (High Z)
H
L
H
L
X
H
Z
Latched (High Z)
NOTE:
2607 tbl 02
1. H = HIGH, L = LOW, X = Don’t Care, NC = No Change,
Z = High Impedance



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