HT45FH4M
Lithium Battery Backup Power ASSP MCU
Features
CPU Features
• Operating Voltage:
♦
♦
f
SYS
= 7.5MHz: 2.7V~5.5V
f
SYS
= 15MHz: 4.5V~5.5V
• Up to 0.27μs instruction cycle with 15MHz system clock at V
DD
= 5V
• Power down and wake-up functions to reduce power consumption
• Oscillators:
♦
♦
Internal RC -- HIRC
Internal 32kHz -- LIRC
• Fully intergrated internal 30MHz oscillator requires no external components
• Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
• All instructions executed in one or two instruction cycles
• Table read instructions
•
63 powerful instructions
• 4-level subroutine nesting
• Bit manipulation instruction
Peripheral Features
• Flash Program Memory: 2K×16
• RAM Data Memory: 128×8
• EEPROM Memory: 64×8
• Watchdog Timer function
• Up to 13 bidirectional I/O lines
• Two pin-shared external interrupts
• Multiple Timer Module for time measure, input capture, compare match output, PWM output
function or single pulse output function
• Over current protection (OCP) with interrupt
• Over voltage protection (OVP) with interrupt
• Dual Time-Base functions for generation of fixed time interrupt signals
• 8-channel 12-bit resolution A/D converter
• Low voltage reset function (enable@2.55V)
• Low voltage detect function
• One integrated LDO: 5V output
• 2 level shift output pins
• Package : 20-pin SSOP
Rev. 1.10
6
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HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
