HT48RA0A - Holtek Semiconductor Inc

HT48RA0A 8-Bit OTP IR Remote Controller

The HT48RA0A is an 8-bit high performance RISC-like microcontroller specifically designed for multiple I/O product applications. The device is particularly suitable for use in products such as infrared remote controllers and various subsystem controllers. A halt feature is included to reduce power consumption. 1 May 17, 2000 Preliminary Block Diagram S T .

Features

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· 8-Bit OTP IR Remote Controller
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· HT48RA0A Operating voltage: 2.2V~3.6V Ten bidirectional I/O lines Six schmitt trigger input lines One carrier output (1/2 or 1/3 duty) On-chip crystal and RC oscillator Watchdog timer 1K´14 program EPROM 32´8 data RAM Low voltage reset function Halt function and wake-up feature reduce power consumption 62 powerful instructions Up to 1ms instruction cycle with 4MHz system clock All instructions in 1 or 2 machine cycles 14-bit table read instructions One-level subroutine nesting Bit manipulation instructions 20-pin SOP package .