DM74AS280N Fairchild Semiconductor, DM74AS280N Datasheet - Page 4

• Manufacturer Part Number: DM74AS280N
• Description: IC PARITY GEN/CHKER 9BIT 14DIP
• Manufacturer: Fairchild Semiconductor
• Series: 74ASr

Specifications of DM74AS280N

• Logic Type: Parity Generator/Checker
• Number Of Circuits: 9-Bit
• Current - Output High, Low: 2mA, 20mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 74AS280

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Typical Applications
Three DM74AS280s can be used to implement a 25-line
parity generator/checker.
As an alternative, the outputs of two or three parity genera-
tors/checkers can be decoded with a 2-input (AS86) or 3-
FIGURE 2. 81-Line Parity/Generator Checker
Parity/Generator Checker
FIGURE 1. 25-Line
4
input (S135) exclusive-OR gate for 18 or 27-line parity
applications.
Longer word lengths can be implemented by cascading
DM74AS280s. As shown in Figure 2, parity can be gener-
ated for word lengths up to 81 bits.