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M54HC688 Datasheet(PDF) 2 Page - STMicroelectronics

Part # M54HC688
Description  RAD-HARD 8 BIT EQUALITY COMPARATOR
PDF  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC688 Datasheet(HTML) 2 Page - STMicroelectronics

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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
1G
Enable Input (Active
LOW)
2, 4, 6, 8, 11,
13, 15, 17
P0 to P7
Word Inputs
3, 5, 7, 9, 12,
14, 16, 18
Q0 to Q7
Word Outputs
19
P = Q
Equal to Output
10
GND
Ground (0V)
20
VCC
Positive Supply Voltage
INPUTS
OUTPUT
P, Q
G
P= Q
P= Q
L
L
P<> Q
L
H
XH
H



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