CXP85390A

CXP85300A/85390A CMOS 8-bit 1-chip Microcomputer Description The CXP85300A/85390A are CMOS 8-bit 1-chip microcomputers that serve as both piggyback and evaluator. The CXP85300A/85390A are developed for evaluating the function of the CXP85324A/CXP 85332A/85340A. Note that CXP85300A corresponds to the fixed font, and CXP85390A corresponds to the custom font respectively. 64 pin PSDIP (Ceramic) Piggyback/ evaluator type 64 pin PQFP (Ceramic) Features 64 pin PSDIP (Ceramic) Instruction set which supports a wide array of data types — 213 types of instructions which include 16-bit calculations, multiplication and division arithmetic, and boolean bit operations. Minimum instruction cycle 1µs/4MHz (4MHz version) 0.5µs/8MHz (8MHz version) EPROM 27C512 LCC type 27C512 Incorporated RAM capacity 576 bytes EPROM for custom font (CXP85390A only) LCC type 27C256, LCC type 27C512 (used volume is 16K bytes) Peripheral functions — On-screen display function 12 × 18 dots, 256 types 15 colors, 21 characters × 12 lines Black frame output half blanking, shadow, background color on full screen/ half blanking Double scanning mode, jitter elimination circuit — I2C bus interface — PWM output 14 bits, 1 channel 8 bits, 8 channels — Remote control receiving circuit 8-bit pulse measurement counter, 6-stage FIFO — A/D converter 8 bits, 4 channels, successive approximation system (conversion time of 40µs/4MHz, 8MHz) — HSYNC counter — Power supply frequency counter — Watchdog timer — Serial I...