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| 型號： | SN54AS866 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-BIT MAGNITUDE COMPARATORS |
| 中文描述： | 8位震級比較器 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大小： | 115K |
| 代理商： | SN54AS866 |
SN54AS866, SN74AS866A
8-BIT MAGNITUDE COMPARATORS
SDAS183A – DECEMBER 1982 – REVISED JUNE 1990
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
6
TYPICAL APPLICATION DATA
This sequence of comparisons illustrates how the CLRQ function can be used to perform dual comparisons of the
varying P terms (P0, P1, etc.). When CLRQ is high, the P term is compared to the Q term. When CLRQ is taken low,
the P term is compared to zero. This or similar sequences can enhance performance and reduce package count to
perform value range checks.
P1:Zero
P1:Q0
P0:Zero
P2:Q0
P0:Q0
CLRQ
QLE
7
Q
Q
0
1=0
2D
C2
R
C3
QLE
CLRQ
QLE
P > Q
P < Q
P
P
P = Q
P < Q
P > Q
3D
3D
3D
P = Q
P < Q
P > Q
7
’AS866(A)
COMP
M [ARITH, 2s COMP]
C1
M [LOGIC]
L/A
PLE = H
0
1=0
1D
Figure 1. Magnitude Comparisons Combined With Quick Comparisons to Zero
(Range Verifications)
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