IDT74FCT621AT 데이터 시트보기 (PDF) - Renesas Electronics
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IDT74FCT621AT Datasheet PDF : 7 Pages
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IDT74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
PIN CONFIGURATION
GAB 1
20
VCC
A1 2
19 GBA
A2 3
18
B1
A3 4
17
B2
A4 5
16
B3
A5 6
15
B4
A6 7
14
B5
A7 8
13
B6
A8
9
12
B7
GND 10
11
B8
SOIC
TOP VIEW
INDUSTRIAL TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
Unit
VTERM(2) Terminal Voltage with Respect to GND
–0.5 to +7
V
VTERM(3) Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V
TSTG Storage Temperature
–65 to +150
°C
IOUT
DC Output Current
–60 to +120
mA
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS 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. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Symbol
Parameter(1)
Conditions Typ. Max. Unit
CIN
Input Capacitance
VIN = 0V
6
10 pF
COUT
Output Capacitance VOUT = 0V
8
12 pF
NOTE:
1. This parameter is measured at characterization but not tested.
PIN DESCRIPTION
Pin Names
Description
GBA, GAB
Enable Inputs
A1 – A8
A Inputs or Open-drain Outputs
B1 – B8
B Inputs or Open-drain Outputs
FUNCTION TABLE(1)
Enable Inputs
GBA
GAB
Function
L
L
B data to A bus
H
H
A data to B bus
H
L
OFF
L
H
B data to A bus
A data to B bus
NOTE:
1. H = HIGH Voltage Level.
L = LOW Voltage Level.
OFF = HIGH if pull-up resistor is connected to Open-Drain output.
2
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