Holtek Semiconductor HT45R4U
The TinyPowerTM A/D Type with LCD 8-bit high performance RISC architecture microcontroller is specifically, designed for applications that interface directly to analog signals and which require an LCD interface. The device includes an integrated multi-channel Analog to Digital Converter and an LCD driver.FEATURES
● Operating voltage: fSYS=32768Hz: 2.2V~3.6V fSYS=4MHz: 2.2V~3.6V● OTP Program Memory: 16K×16
● RAM Data Memory: 1152×8
● Up to 34 bidirectional I/O lines
● TinyPower technology for low power operation
● Two external pin-shared interrupts lines
● Multiple programmable Timer/Event Counters with overflow interrupt and 7-stage prescaler
● External Crystal, Internal RC and 32.768kHz oscillators
● Externally supplied system clock option
● Watchdog Timer function
● PFD/Buzzer for audio frequency generation
● LCD driver function
● 4 operating modes: normal, slow, idle and sleep
● 8-channel 12-bit resolution A/D converter
● Low voltage detect function
● Bit manipulation instruction
● Table read instructions
● 63 powerful instructions
● Up to 1µs instruction cycle with 4MHz system clock at VDD=3V
● 8 levels subroutine nesting
● All instructions executed in one or two machine cycles
● Power down and wake-up functions to reduce power consumption
● Package Type: 64-pin LQFP Rev. 1.10 6 M...