HT48R50A-1_09 Datasheet, PDF (1/39 Pages) Holtek Semiconductor Inc – I/O Type 8-Bit MCU

HT48R50A-1/HT48C50-1
I/O Type 8-Bit MCU
Technical Document
· Tools Information
· FAQs
· Application Note
- HA0003E Communicating between the HT48 & HT46 Series MCUs and the HT93LC46 EEPROM
- HA0004E HT48 & HT46 MCU UART Software Implementation Method
- HA0013E HT48 & HT46 LCM Interface Design
- HA0021E Using the I/O Ports on the HT48 MCU Series
- HA0055E 2^12 Decoder (8+4 - Corresponds to HT12E)
Features
· Operating voltage:
f_SYS=4MHz: 2.2V~5.5V
f_SYS=8MHz: 3.3V~5.5V
· Low voltage reset function
· 35 bidirectional I/O lines (max.)
· 1 interrupt input shared with an I/O line
· 8-bit programmable timer/event counter with overflow
interrupt and 8-stage prescaler
· 16-bit programmable timer/event counter and over-
flow interrupts
· On-chip RC oscillator, external crystal and RC oscil-
lator
· 32768Hz crystal oscillator for timing purposes only
· Watchdog Timer
· 4096´15 program memory ROM
· 160´8 data memory RAM
· Buzzer driving pair and PFD supported
· HALT function and wake-up feature reduce power
consumption
· 6-level subroutine nesting
· Up to 0.5ms instruction cycle with 8MHz system clock
at V_DD=5V
· Bit manipulation instruction
· 15-bit table read instruction
· 63 powerful instructions
· All instructions in one or two machine cycles
· 28-pin SKDIP/SOP, 48-pin SSOP package
General Description
The HT48R50A-1/HT48C50-1 are 8-bit high perfor-
mance, RISC architecture microcontroller devices spe-
cifically designed for multiple I/O control product
applications. The mask version HT48C50-1 is fully pin
and functionally compatible with the OTP version
HT48R50A-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. 2.01
1
January 9, 2009