STMicroelectronics M74HC280
The M74HC280 is a high-speed CMOS 9-bit parity generator fabricated with silicon gate C2MOS technology. It is composed of nine data inputs (A to I) and odd/even parity outputs (ΣODD and ΣEVEN). The nine data inputs control the output conditions.FEATURES
● High-speed: tPD = 22 ns (typ.) at VCC = 6 V● Low power dissipation: ICC = 4 μA (max.) at TA = 25 °C
● High noise immunity: VNIH = VNIH = 28 % VCC (min)
● Symmetrical output impedance: |IOH| = IOL = 4 mA (min.)
● Balanced propagation delays: tPLH ≅ tPHL
● Wide operating voltage range: VCC (opr) = 2 V to 6 V
● Pin and function compatible with 74 series 280
● ESD performance – HBM: 2 kV – MM: 200 V – CDM: 1 kV
DESCRIPTION
When the number of high-level inputs is odd, ΣODD outputs are kept high and ΣEVEN outputs are kept low. Conversely, when the number of high-level outputs is even, ΣEVEN outputs are kept high and ΣODD outputs are kept low. The IC generates either odd or even parity making the application flexible. The word-length capability is easily expanded by cascading. All inputs are equipped with protection circuits against static discharge and transient excess voltage. Table 1. Device summary Order code Temp. range Package Packing Marking M74HC280RM13TR M74HC280YRM13TR(1...