HT46R23

HT46R23 8-Bit OTP Microcontroller Features · Operating voltage: · Up to 0.5ms instruction cycle with 8MHz system clock fSYS=4MHz: 3.3V~5.5V fSYS=8MHz: 4.5V~5.5V at VDD=5V · 23 bidirectional I/O lines (max.) · 1 interrupt input shared with an I/O line · 16-bit programmable timer/event counter with overflow · 8-level subroutine nesting · 8 channels 10-bit resolution (9-bit accuracy) A/D con- verter interrupt and 7-stage prescaler · 2-channel (6+2)/(7+1)-bit PWM output shared with two I/O lines · On-chip crystal and RC oscillator · Watchdog Timer · 4096´15 program memory PROM · 192´8 data memory RAM · Supports PFD for sound generation · HALT function and wake-up feature reduce power · Bit manipulation instruction · 15-bit table read instruction · 63 powerful instructions · All instructions in one or two machine cycles · Low voltage reset function · I2C BUS (slave mode) · 24/28-pin SKDIP/SOP package consumption General Description The device is an 8-bit high performance RISC-like microcontroller designed for multiple I/O product applications. It is particularly suitable for use in products such as washing machine controllers and home appliances. A HALT feature is included to reduce power consumption. The program and option memories can be electrically programmed, making this microcontroller suitable for product development applications. I C is a trademark of Philips Semiconductors. 2 Rev. 1.30 1 August 17, 2001 HT46R23 Block Diagram P A 5 /IN T In te rru p t C ...