Holtek HT46R64 User Manual

Features
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Operating voltage:
f =4MHz: 2.2V~5.5V
SYS
f =8MHz: 3.3V~5.5V
SYS
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24 bidirectional I/O lines
·
Two external interrupt input
·
One 8-bit and one 16-bit programmable timer/event
counter with PFD (programmable frequency divider)
function
·
LCD driver with 33´3 or 32´4 segments
(logical output option for SEG0~SEG15)
·
4K´15 program memory
·
192´8 data memory RAM
·
Supports PFD for sound generation
·
Real Time Clock (RTC)
·
8-bit prescaler for RTC
General Description
The HT46R64/HT46C64 are 8-bit, high performance,
RISC architecture microcontroller devices specifically
designed for A/D product applications that interface di-
rectly to analog signals and which require LCD Inter-
face. The mask version HT46C64 is fully pin and
functionally compatible with the OTP version HT46R64
device.
The advantages of low power consumption, I/O flexibil-
ity, timer functions, oscillator options, multi-channel A/D
Rev. 2.10
HT46R64/HT46C64
A/D with LCD Type 8-Bit MCU
·
Watchdog Timer
·
Buzzer output
·
On-chip crystal, RC and 32768Hz crystal oscillator
·
HALT function and wake-up feature reduce power
consumption
·
8-level subroutine nesting
·
8 channels 10-bit resolution A/D converter
·
4-channel 8-bit PWM output shared with 4 I/O lines
·
Bit manipulation instruction
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16-bit table read instruction
·
Up to 0.5ms instruction cycle with 8MHz system clock
·
63 powerful instructions
·
All instructions in 1 or 2 machine cycles
·
Low voltage reset/detector function
·
52/100-pin LQFP packages
Converter, Pulse Width Modulation function, HALT and
wake-up functions, in addition to a flexible and
configurable LCD interface enhance the versatility of
these devices to control a wide range of applications re-
quiring analog signal processing and LCD interfacing,
such as electronic metering, environmental monitoring,
handheld measurement tools, motor driving, etc., for
both industrial and home appliance application areas.
1 June 6, 2014