HOLTEK
HT48C70-1
8-Bit I/O Type Mask MCU
 Features
Operating voltage:

8192x16 program memory ROM
---fSYS=4MHz: 2.2V~5.5V 224x8 data memory RAM
---fSYS=8MHz: 4.5V~5.5V HALT function and wake-up feature reduce
56 bidirectional I/O lines (max.) ---power consumption
1 interrupt input 16-level subroutine nesting
2x16-bit programmable timer/event Up to 0.5us instruction cycle with 8MHz
---counter and overflow interrupts ---system clock at VDD=5V
On-chip RC oscillator, external crystal Bit manipulation instruction
---and RC oscillator 16-bit table read instruction
32768Hz crystal oscillator for timing 63 powerful instructions
---purposes only All instructions in one or two machine cycles
Watchdog Timer

48-pin SSOP, 64-pin QFP packag
 General Description
This 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 remote controllers,
fan/light controllers, washing machine controllers, scales, toys and various subsystem
controllers. A HALT feature is included to reduce power consumption.