HT49R70A-1/HT49C70-1/HT49C70L
8-Bit LCD Type MCU
Features
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Operating voltage:
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On-chip crystal, RC and 32768Hz crystal oscillator
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HALT function and wake-up feature reduce power
2.2V~5.5V for HT49R70A-1/HT49C70-1
1.2V~2.2V for HT49C70L
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8 input lines
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16 bidirectional I/O lines
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Two external interrupt input
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One 8-bit and one 16-bit programmable timer/event
consumption
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16-level subroutine nesting
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Bit manipulation instruction
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16-bit table read instruction
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Up to 0.5ms instruction cycle with 8MHz system clock
counter with PFD (programmable frequency divider)
function
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LCD driver with 41麓3 or 40麓4 segments
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8K麓16 program memory ROM
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224麓8 data memory RAM
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Real Time Clock (RTC)
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8-bit prescaler for RTC
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Watchdog Timer
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Buzzer output
for HT49R70A-1/HT49C70-1
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Up to 8ms instruction cycle with 500kHz system clock
for HT49C70L
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63 powerful instructions
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All instructions in 1 or 2 machine cycles
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Low
vo lt a ge r e se t / d et e ct or f un ct i o ns f o r
HT49R70A-1/HT49C70-1
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100-pin QFP package
General Description
The HT49C70-1 and the HT49C70L are 8-bit high per-
formance single chip microcontroller. The HT49R70A-1
is the OTP version of the HT49C70-1. Its single cycle in-
struction and two-stage pipeline architecture make it
suitable for high speed applications. The device is also
suitable for use in multiple LCD low power applications
such as scales, leisure products, high-level household
appliances, hand held LCD products and batteries oper-
ated systems in particular.
Rev. 1.10
1
October 17, 2002