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參數(shù)資料
| 型號： | IDT74FCT621TDG |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | FCT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CDIP20 |
| 封裝： | CERDIP-20 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 121K |
| 代理商： | IDT74FCT621TDG |
2
MILITARYANDCOMMERCIALTEMPERATURERANGES
IDT54/74FCT621T/AT
FAST CMOS OCTAL BUS TRANSCEIVER (OPEN DRAIN)
PIN CONFIGURATION
DIP/ SOIC/ CERPACK
TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
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
–65 to +120
mA
8T-link
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. Outputs and I/O terminals only.
CAPACITANCE (TA = +25OC, 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
8T-link
NOTE:
1. This parameter is measured at characterization but not tested.
1
2
3
4
5
7
9
6
8
10
11
12
13
14
15
16
17
18
19
20
L20-2
B3
B1
B2
B4
B5
GA
B
A
2
A
1
V
CC
A
8
GND
B
8
B
7
B
6
INDEX
A3
A4
A7
A5
A6
GB
A
2
3
1
16
15
14
11
19
18
20
17
13
12
5
6
7
4
P20-1
D20-1
SO 20-2
E20-1
8
9
10
A2
A1
VCC
A3
A6
A4
A5
A7
GND
GBA
B 2
B 8
B 1
B 3
B 6
B 4
B 5
B 7
GAB
A8
LCC
TOP VIEW
PIN DESCRIPTION
Pin Names
Description
GBA, GAB
EnableInputs
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
B data to A bus
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.
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