HT48R70A-1 Datasheet, PDF (1/40 Pages) Holtek Semiconductor Inc – I/O Type 8-Bit MCU

HT48R70A-1/HT48C70-1
I/O Type 8-Bit MCU
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· Low voltage reset function
· 56 bidirectional I/O lines (max.)
· 1 interrupt input
· 2´16-bit programmable timer/event counter and
overflow interrupts
· On-chip RC oscillator, external crystal and RC oscil-
lator
· 32768Hz crystal oscillator for timing purposes only
· Watchdog Timer
· 8192´16 program memory ROM
· 224´8 data memory RAM
· HALT function and wake-up feature reduce power
consumption
· 16-level subroutine nesting
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· Bit manipulation instruction
· 16-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· 48-pin SSOP, 64-pin QFP package
General Description
The HT48R70A-1/HT48C70-1 are 8-bit high perfor-
mance, RISC architecture microcontroller devices spe-
cifically designed for multiple I/O control product
applications. The mask version HT48C70-1 is fully pin
and functionally compatible with the OTP version
HT48R70A-1 device.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, HALT and
wake-up functions, watchdog timer, buzzer driver, as
well as low cost, enhance the versatility of these devices
to suit a wide range of application possibilities such as
industrial control, consumer products, subsystem con-
trollers, etc.
Rev. 1.60
1
June 9, 2004