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 19x2, 19x3 or 18x4 segments
`2Kx14 program memory ROM
`96x8 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 0.5s instruction cycle with 8MHz system clock for HT49R30A-1/HT49C30-1
`Up to 8s 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 packagePinout
SpecificationsSupply Voltage..................................VSS-0.3V to 5.5V*
Supply Voltage ...............................VSS-0.3V to 2.2V**
Input Voltage............................. VSS-0.3V to VDD+0.3V
Storage Temperature ............................-50 to 125
Operating Temperature........................... -40 to 85
Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
DescriptionThe HT49R30A-1/HT49C30-1/HT49C30L are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for a wide range of LCD applications. The mask version HT49C30-1 and HT49C30L are fully pin and functionally compatible with the OTP version HT49R30A-1 device. The HT49C30L is a low voltage version, with the ability to operate at a minimum power supply of 1.2V, making it suitable for single cell battery applications.
The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options, HALT and wake-up functions and buzzer driver in addition to a flexible and configurable LCD interface, enhance the versatility of HT49R30A-1 to control a wide range of LCD-based application possibilities such as measuring scales, electronic multimeters, gas meters, timers, calculators, remote controllers and many other LCD-based industrial and home appliance applications.
HT49R30A-1 Data Sheet
