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IDT54FCT623TE Datasheet PDF : 6 Pages
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IDT54/74FCT623T/AT/CT
FAST CMOS OCTAL BUS TRANSCEIVERS (3-STATE)
PIN CONFIGURATIONS
GAB
A1
A2
A3
A4
A5
A6
A7
A8
GND
1
20
2
19
3
18
4 P20-1 17
5 D20-1 16
6 SO20-2 15
&
7 E20-1 14
8
13
9
12
10
11
VCC
GBA
B1
B2
B3
B4
B5
B6
B7
B8
DIP/SOIC/CERPACK
TOP VIEW
2563 drw 02
MILITARY AND COMMERCIAL TEMPERATURE RANGES
INDEX
3 2 20 19
A3
4
1
18 B1
A4
5
17 B2
A5
6
L20-2
16 B3
A6
7
15 B4
A7
8
14 B5
9 10 11 12 13
LCC
TOP VIEW
2563 drw 03
DEFINITION OF FUNCTIONAL TERMS
Pin Names
GBA, GAB
A1 - A8
B1 - B8
Description
Enable Inputs
A Bus Inputs or 3-State Outputs
B Bus Inputs or 3-State Outputs
2563 tbl 01
FUNCTION TABLE(1)
Enable Inputs
GBA
GAB
L
L
H
H
H
L
L
H
NOTES:
1. H = HIGH Voltage Level
2. L = LOW Volage Level
3. Z = High-Impedance (OFF) state
Outputs
B data to A bus
A data to B bus
Z
B data to A bus
A data to B bus
2563 tbl 02
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Commercial Military Unit
VTERM(2) Terminal Voltage –0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND
VTERM(3) Terminal Voltage
with Respect to
GND
–0.5 to
VCC +0.5
–0.5 to
V
VCC +0.5
TA
Operating
0 to +70 –55 to +125 °C
Temperature
TBIAS Temperature
–55 to +125 –65 to +135 °C
Under Bias
TSTG Storage
–55 to +125 –65 to +150 °C
Temperature
PT
Power Dissipation
0.5
0.5
W
IOUT
DC Output
–60 to +120 –60 to +120 mA
Current
NOTES:
2563 lnk 03
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-
INGS may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is
not implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability. No terminal voltage may exceed
VCC by +0.5V unless otherwise noted.
2. Input and VCC terminals only.
3. Outputs and I/O terminals only.
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Parameter(1) Conditions Typ. Max. Unit
CIN
Input
VIN = 0V
6
10 pF
Capacitance
COUT Output
VOUT = 0V 8
12 pF
Capacitance
NOTE:
2563 lnk 04
1. This parameter is measured at characterization but not tested.
6.19
2
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