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HT49CA1 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc |
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HT49CA1 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc |
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1 / 57 page  HT49RA1/HT49CA1 Remote Type 8-Bit MCU with LCD Rev. 1.10 1 March 30, 2014 General Description The HT49RA1/HT49CA1 is a Remote Type 8-bit MCU 8-bit high performance RISC architecture microcontroller. With its internal carrier generator and LCD Driver functions the device is is especially suitable for multiple I/O remote control product applications. The usual Holtek MCU features such as power down and wake-up functions, oscillator options, etc. combine to ensure user applications require a minimum of external components. The benefits of low power consumption, high perfor- mance, I/O flexibility and low-cost, provide these de- vices with the versatility to suit a wide range of application possibilities such as industrial control, con- sumer products and particularly suitable for use in prod- ucts such as infrared LCD remote controllers and various, subsystem controllers, etc. Features · Operating voltage: 2.0V~3.6V · 12 bidirectional I/O lines, 8 input lines, 8 segment output, PC0 (input/output)/REM · Two external interrupt inputs shared with an I/O line · 8-bit programmable Timer/Event Counter with overflow interrupt function · Single 16-bit programmable timer/event counter with overflow interrupt function · RC oscillator and 32768Hz crystal oscillator · LCD driver with 33´2, 33´3or32´4 segments (C type only), 8 logical output option for SEG12~SEG19 and 4 I/O port option for SEG0~SEG3 by changing LCDC register · 4096´15 program memory · 160´8 data memory · Real Time Clock - RTC · 8-bit prescaler for RTC · One carrier output (1/2or1/3 duty) · Software LCD, RTC control · Watchdog Timer function · Power down and wake-up functions to reduce power consumption · Up to 1ms instruction cycle with 4MHz system clock · 4-level subroutine nesting · Bit manipulation instruction · Table read instructions · 63 powerful instructions · All instructions executed in one or two machine cycles · Low voltage reset/detector function · 64-pin LQFP package Device Types Devices which have the letter ²R² within their part number, indicate that they are OTP devices offering the advan- tages of easy and effective program updates, using the Holtek range of development and programming tools. These devices provide the designer with the means for fast and low-cost product development cycles. Devices which have the letter ²C² within their part number indicate that they are mask version devices. These devices offer a complementary device for applications that are at a ma- ture state in their design process and have high volume and low cost demands. Fully pin and functionally compatible with their OTP sister devices, the mask version devices provide the ideal substitute for products which have gone beyond their development cycle and are facing cost-down de- mands. In this datasheet, for convenience, when describing device functions, only the OTP types are mentioned by name, however the same described functions also apply to the Mask type devices. |
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