PCA84C122 Datasheet (PDF) Download
NXP Semiconductors
PCA84C122

Key Features

  • Figure 2 shows the general - 84CXXX CPU
  • ROM, RAM and I/O configurations are device dependent; see Chapter 3
  • Two test inputs: T0 (ANDed with Port 1 input lines) and T1
  • 8-bit programmable timer/counter with 5-bit pre-scaler
  • Power saving: Idle and Stop modes are provided
  • Hardware Modulator providing pulse bursts, with: - programmable duty factor for each pulse - programmable number of pulses
  • Watchdog Timer to keep the transmitter from being locked or malfunction
  • Available packages: SO and DIP types (SO20, SO24, SO28, SDIP24 and DIP20); see Chapter 4
  • On-chip oscillator: 455 kHz to 6 MHz
  • Single supply voltage: 2.0 V to 5.5 V