N74F543DB 查看數據表（PDF） - Philips Electronics
零件编号
产品描述 (功能)
比赛名单
N74F543DB Datasheet PDF : 12 Pages
| |||
Philips Semiconductors
Octal registered transceiver, non-inverting (3-State)
Product data sheet
74F543
PIN CONFIGURATION
LEBA 1
OEBA 2
A0 3
A1 4
A2 5
A3 6
A4 7
A5 8
A6 9
A7 10
EAB 11
GND 12
24 VCC
23 EBA
22 B0
21 B1
20 B2
19 B3
18 B4
17 B5
16 B6
15 B7
14 LEAB
13 OEAB
SF00237
LOGIC SYMBOL (IEEE/IEC)
2
IEN3
23
G1
1
1C5
13
2EN4
11
G2
14
2C6
3
3
4
6D
5
6
7
8
9
10
22
5D
4
21
20
19
18
17
16
15
SF00239
LOGIC SYMBOL
3 4 5 6 7 8 9 10
A0 A1 A2 A3 A4 A5 A6 A7
11
EAB
23
EBA
14
LEAB
1
LEBA
OEAB
13
OEBA
2
B0 B1 B2 B3 B4 B5 B6 B7
VCC = Pin 24
GND = Pin 12
22 21 20 19 18 17 16 15
SF00238
FUNCTION TABLE for 74F543
INPUTS
STATUS
OEXX EXX LEXX DATA OUTPUTS
H
X
X
X
Z
Disabled
X
H
X
X
Z
Disabled
L
↑
L
h
L
↑
L
l
Z
Disable +
Z
Latch
L
L
↑
h
L
L
↑
l
L
L
L
H
L
L
L
L
H
Latch +
L
Display
H
Transparent
L
L
L
H
X
NC
Hold
H = HIGH voltage level
L = LOW voltage level
h = HIGH state must be present one setup time before the
LOW-to-HIGH transition of LEXX or EXX (XX=AB or BA)
l = LOW state must be present one setup time before the
LOW-to-HIGH transition of LEXX or EXX (XX=AB or BA)
↑ = LOW-to-HIGH transition of LEXX or EXX XX = AB or BA
X = Don’t care
NC = No change
Z = High-impedance “off” state
2004 Jul 22
3
Share Link: 