參數(shù)資料
型號(hào): 933334340652
廠商: NXP SEMICONDUCTORS
元件分類: 算術(shù)邏輯單元
英文描述: 4000/14000/40000 SERIES, 4-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, PDIP16
封裝: PLASTIC, SOT-38-1, DIP-16
文件頁數(shù): 4/6頁
文件大?。?/td> 65K
代理商: 933334340652
January 1995
4
Philips Semiconductors
Product specication
4-bit magnitude comparator
HEF4585B
MSI
FUNCTION TABLE
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
The upper 11 lines describe the normal operation under all conditions that will occur in a single device or in a serial
expansion scheme.
The lower 2 lines describe the operation under abnormal conditions on the cascading inputs. These conditions occur
when the parallel expansion technique is used.
COMPARING INPUTS
CASCADING INPUTS
OUTPUTS
A3, B3
A2,B2
A1, B1
A0, B0
IA > B
IA < B
IA = B
OA > B
OA < B
OA = B
A3 >B3
XX
X
H
X
H
L
A3 <B3
XX
X
L
H
L
A3 =B3
A2 > B2
XX
H
X
H
L
A3 =B3
A2 <B2
XX
X
L
H
L
A3 =B3
A2 =B2
A1 >B1
XH
X
H
L
A3 =B3
A2 =B2
A1 <B1
XX
X
L
H
L
A3 =B3
A2 =B2
A1 =B1
A0 >B0
HX
X
H
L
A3 =B3
A2 =B2
A1 =B1
A0 < B0
XX
X
L
H
L
A3 =B3
A2 =B2
A1 =B1
A0 =B0
XL
H
L
H
A3 =B3
A2 =B2
A1 =B1
A0 =B0
HL
L
H
L
A3 =B3
A2 =B2
A1 =B1
A0 =B0
XH
L
H
L
A3 =B3
A2 =B2
A1 =B1
A0 =B0
XH
H
L
H
A3 =B3
A2 =B2
A1 =B1
A0 =B0
LL
L
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