74F280B - Philips

74F280B 9-bit odd/even parity generator/checker

The 74F280B is a 9-bit Parity Generator or Checker commonly used to detect errors in high speed data transmission or data retrieval systems. Both Even (∑E) and Odd (∑O) parity outputs are available for generating or checking even or odd parity on up to 9 bits. The Even (∑E) parity output is High when an even number of Data inputs (I0 - I8) are High. The Odd .

Features

• High-impedance NPN base inputs for reduced loading (20µA in Low and High states) PIN CONFIGURATION I6 I7 NC I8 ΣE ΣO GND 1 2 3 4 5 6 7 14 VCC 13 I5 12 I4 11 I3
• Buffered inputs — one normalized load
• Word length easily expanded by cascading
• Industrial temperature range available (
  –40°C to +85°C) DESCRIPTION The 74F280B is a 9-bit Parity Generator or Checker commonly used to detect errors in high speed data transmission or data retrieval systems. Both Even (∑E) and Odd (∑O) parity outputs are available for generating or checking even or odd parity on up to 9 bits. The Even (∑E) parity .