HT49R30 Datasheet, PDF (1/43 Pages) Holtek Semiconductor Inc – 8-Bit LCD Type MCU

HT49R30A-1/HT49C30-1/HT49C30L
8-Bit LCD Type MCU
Features
· Operating voltage:
2.2V~5.5V for HT49R30A-1/HT49C30-1
1.2V~2.2V for HT49C30L
· 6 input lines
· 8 bidirectional I/O lines
· Two external interrupt input
· One 8-bit programmable timer/event counter with
PFD (programmable frequency divider) function
· LCD driver with 19´2, 19´3 or 18´4 segments
· 2K´14 program memory ROM
· 96´8 data memory RAM
· Real Time Clock (RTC)
· 8-bit prescaler for RTC
· Watchdog Timer
· Buzzer output
· On-chip crystal, RC and 32768Hz crystal oscillator
· HALT function and wake-up feature reduce power
consumption
· 4-level subroutine nesting
· Bit manipulation instruction
· 14-bit table read instruction
· Up to 0.5ms instruction cycle with 8MHz system clock
for HT49R30A-1/HT49C30-1
· Up to 8ms instruction cycle with 500kHz system clock
for HT49C30L
· 63 powerful instructions
· All instructions in 1 or 2 machine cycles
· Low voltage reset/detector for
HT49R30A-1/HT49C30-1
· 48-pin SSOP package
General Description
The HT49C30-1 and the HT49C30L are 8-bit high per-
formance single chip microcontrollers. The
HT49R30A-1 is the OTP version of the HT49C30-1. Its
single cycle instruction and two-stage pipeline architec-
ture make it suitable for high speed applications. The
devices are also suitable for use in multiple LCD low
power applications such as scales, leisure products,
high-level household appliances, hand held LCD prod-
ucts and batteries operated systems in particular.
Rev. 1.10
1
September 25, 2002