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參數(shù)資料
| 型號(hào)： | 933784290623 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | F/FAST SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, MS-163AC, SOT-163-1, SO-20 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 87K |
| 代理商： | 933784290623 |
Philips Semiconductors
Product specification
74F621
Octal bus transceiver, non-inverting (open collector)
1996 Jan 05
3
LOGIC SYMBOL
B0
B1
B2
B3
19
1
OEAB
OEBA
SF01126
VCC = Pin 20
GND = Pin 10
B4
B5
B6
B7
89
A2
A3
45
6
A4
A5
A6
7
A7
23
A0
A1
18
17
16
15
14
13
12
11
LOGIC SYMBOL (IEEE/IEC)
SF01137
19
18
EN1
1
17
16
15
14
13
12
11
2
3
4
5
6
7
8
9
2
1
EN2
LOGIC DIAGRAM
VCC =
Pin 20
GND =
Pin 10
SF01130
OEBA
2
3
4
18
17
16
15
14
13
12
B0
B1
B4
B5
B6
B7
OEAB
A1
A4
A5
A6
A7
B2
B3
A3
A2
5
6
7
8
A0
11
9
19
1
FUNCTION TABLE
INPUTS
OPERATING MODES
OEBA
OEAB
OPERATING MODES
L
B data to A bus
H
A data to B bus
H
L
OFF
L
H
B data to A bus
L
H
A data to B bus
H = High voltage level
L
= Low voltage level
X = Don’t care
OFF= High if pull-up resistor is connected to open collector output
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