Product Summary

The HT48R50A-1 is 8-bit high performance, RISC architecture microcontroller device specifically designed for multiple I/O control product applications. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, buzzer driver, as well as low cost, enhance the versatility of the HT48R50A-1 to suit a wide range of application possibilities such as industrial control, consumer products, subsystem controllers, etc.

Parametrics

HT48R50A-1 absolute maximum ratings: (1)Supply Voltage: VSS-0.3V to VSS+6.0V; (2)Storage Temperature: -50 to 125℃; (3)Input Voltage: VSS-0.3V to VDD+0.3V; (4)Operating Temperature: -40 to 85℃.

Features

HT48R50A-1 features: (1)Operating voltage: fSYS=4MHz: 2.2V~5.5V, fSYS=8MHz: 3.3V~5.5V; (2)Low voltage reset function; (3)35 bidirectional I/O lines (max.); (4)1 interrupt input shared with an I/O line; (5)8-bit programmable timer/event counter with overflow interrupt and 8-stage prescaler; (6)16-bit programmable timer/event counter and overflow interrupts; (7)On-chip RC oscillator, external crystal and RC oscillator; (8)32768Hz crystal oscillator for timing purposes only; (9)Watchdog Timer; (10)4096×15 program memory ROM; (11)160×8 data memory RAM; (12)Buzzer driving pair and PFD supported; (13)HALT function and wake-up feature reduce power consumption; (14)6-level subroutine nesting; (15)Up to 0.5s instruction cycle with 8MHz system clock at VDD=5V; (16)Bit manipulation instruction; (17)15-bit table read instruction; (18)63 powerful instructions; (19)All instructions in one or two machine cycles; (20)28-pin SKDIP/SOP, 48-pin SSOP package.

Diagrams

HT48R50A-1 block diagram

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