M54HC688K1 STMicroelectronics, M54HC688K1 Datasheet - Page 2

• Manufacturer Part Number: M54HC688K1
• Manufacturer: STMicroelectronics
• Type: Identity Comparatorr

Specifications of M54HC688K1

• Logic Family: HC
• Technology: CMOS
• High Level Output Current: -5.2mA
• Low Level Output Current: 5.2mA
• Output Function: A=B
• Quiescent Current: 4uA
• Mounting: Surface Mount
• Pin Count: 20
• Polarity: Inverting
• Abs. Propagation Delay Time: 255ns
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 6V
• Operating Supply Voltage (min): 2V
• Operating Temperature (max): 125C
• Operating Temperature Classification: Military
• Number Of Bits: 8
• Lead Free Status / RoHS Status: Supplier Unconfirmed

M74HC688
Figure 1: IEC Logic Symbols
Figure 2: Input And Output Equivalent Circuit
Table 2: Truth Table
X: Don’t Care
2/10
P <> Q
P = Q
P, Q
X
INPUTS
G
H
L
L
Table 1: Pin Description
3, 5, 7, 9, 12,
2, 4, 6, 8, 11,
13, 15, 17
14, 16, 18
PIN N°
19
10
20
1
SYMBOL
Q0 to Q7
P0 to P7
P = Q
GND
V
G
CC
Enable Input (Active
LOW)
Word Inputs
Word Outputs
Equal to Output
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
OUTPUT
P = Q
H
H
L