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参数资料
| 型号： | M54HC85K |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | HC/UH SERIES, 4-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, CDFP16 |
| 封装： | CERAMIC, DFP-16 |
| 文件页数： | 3/10页 |
| 文件大小： | 303K |
| 代理商： | M54HC85K |
M54HC85
2/10
Figure 1: IEC Logic Symbols
Figure 2: Input And Output Equivalent Circuit
Table 1: Pin Description
Table 2: Truth Table
X : Don’t Care
PIN N°
SYMBOL
NAME AND FUNCTION
2
INA<B
A<B Expansion Input
3
INA=B
A=B Expansion Input
4
INA>B
A>B Expansion Input
5
OUTA>B
A>B Expansion Output
6
OUTA=B
A=B Expansion Output
7
OUTA<B
A<B Expansion Output
9, 11, 14, 1
B0 to B3
Word B Inputs
10, 12, 13,
15
A0 to A3
Word A Inputs
8
GND
Ground (0V)
16
VCC
Positive Supply Voltage
COMPARING INPUTS
CASCADING INPUTS
OUTPUTS
A>B
A<B
A=B
A>B
A<B
A=B
A3 > B3
X
XXXH
L
A3 = B3
A2 > B2
X
XXXH
L
A3 = B3
A2 = B2
A1 > B1
X
XXXH
L
A3 = B3
A2 = B2
A1 = B1
A0 > B0
XXXH
L
A3 = B3
A2 = B2
A1 = B1
A0 = B0
LLL
H
L
XX
H
L
H
LHL
L
HL
L
H
L
H
L
LLL
A3 = B3
A2 = B2
A1 = B1
A0 < B0
X
L
H
L
A3 = B3
A2 = B2
A1 > B1
X
L
H
L
A3 = B3
A2 < B2
X
XXX
L
H
L
A3 < B3
X
XXX
L
H
L
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