參數(shù)資料
型號: 74F1245
廠商: NXP Semiconductors N.V.
英文描述: Octal transceiver 3-State
中文描述: 八路收發(fā)器三態(tài)
文件頁數(shù): 3/10頁
文件大?。?/td> 86K
代理商: 74F1245
Philips Semiconductors
Product specification
74F1245
Octal transceiver (3-State)
1995 Mar 01
3
LOGIC SYMBOL (IEEE/IEC)
SF00649
G3
19
3EN1 (BA)
3EN2 (AB)
1
1
2
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
FUNCTION TABLE
INPUTS
INPUTS/OUTPUTS
OE
T/R
An
Bn
L
L
A = B
INPUTS
L
H
INPUTS
B = A
H
X
Z
Z
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
LOGIC DIAGRAM
SF00201
18
B0
17
B1
16
B2
15
B3
14
B4
13
B5
12
B6
11
B7
A0
A1
A2
A3
A4
A5
A6
A7
2
3
4
5
6
7
8
9
19
1
OE
T/R
V
= Pin 20
GND = Pin 10
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
V
IN
I
IN
V
OUT
Supply voltage
–0.5 to +7.0
V
Input voltage
–0.5 to +7.0
V
Input current
–30 to +5
mA
Voltage applied to output in High output state
–0.5 to +5.5
V
I
OUT
Current applied to output in Low output state
A0–A7
48
mA
B0–B7
128
mA
T
amb
T
stg
Operating free-air temperature range
0 to +70
°
C
°
C
Storage temperature range
–65 to +150
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