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SH79F081A Dataheets PDF



Part Number SH79F081A
Manufacturers SINO WEALTH
Logo SINO WEALTH
Description Enhanced 8051 Microcontroller
Datasheet SH79F081A DatasheetSH79F081A Datasheet (PDF)

SH79F081A Enhanced 8051 Microcontroller with 10bit ADC 1. Features  8bits micro-controller with Pipe-line structured 8051 compatible instruction set  Flash ROM: 8K Bytes  RAM: internal 256 Bytes  EEPROM-like: 2K Bytes  Operation Voltage: fOSC = 400kHz - 16MHz, VDD = 3.6V - 5.5V  Oscillator (code option): - Crystal oscillator: 400kHz - 16MHz - Ceramic oscillator: 400kHz - 16MHz - Internal RC: 12.3MHz  26 CMOS bi-directional I/O pins  Built-in pull-up resistor for input pin  Three 16-bi.

  SH79F081A   SH79F081A



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SH79F081A Enhanced 8051 Microcontroller with 10bit ADC 1. Features  8bits micro-controller with Pipe-line structured 8051 compatible instruction set  Flash ROM: 8K Bytes  RAM: internal 256 Bytes  EEPROM-like: 2K Bytes  Operation Voltage: fOSC = 400kHz - 16MHz, VDD = 3.6V - 5.5V  Oscillator (code option): - Crystal oscillator: 400kHz - 16MHz - Ceramic oscillator: 400kHz - 16MHz - Internal RC: 12.3MHz  26 CMOS bi-directional I/O pins  Built-in pull-up resistor for input pin  Three 16-bit timer/counters T0, T1 and T2  One 12-bit PWM  Two 8-bit PWM  Powerful interrupt sources: - Timer0, 1, 2 - INT0, 1 - INT4: 6 input - ADC, EUART, SPI, PWM  EUART  SPI interface (Master/Slave Mode)  8channels 10-bits Analog Digital Converter (ADC), with comparator function built-in  Buzzer  Low Voltage Reset (LVR) function (enabled by code option) - LVR voltage level 1: 4.1V - LVR voltage level 2: 3.7V  CPU Machine cycle: 1 oscillator clock  Watch Dog Timer (WDT)  Warm-up Timer  Support Low power operation modes: - Idle Mode - Power-Down Mode  Flash Type  Package: - SOP28 Pin 2. General Description The SH79F081A is a high performance 8051 compatible micro-controller, regard to its build-in Pipe-line instruction fetch structure, that helps the SH79F081A can perform more fast operation speed and higher calculation performance, if compare SH79F081A with standard 8051 at same clock speed. The SH79F081A retains most features of the standard 8051. These features include internal 256 bytes RAM, UART and Int0-1. It also contains 8K bytes Flash memory block both for program and data. Also the ADC and PWM timer functions are incorporated in SH79F081A. For high reliability and low cost issues, the SH79F081A builds in Watchdog Timer, Low Voltage Reset function. And SH79F081A also supports two power saving modes to reduce power consumption. 1 V2.0 3. Block Diagram VDD Power Pipelined 8051 architecture Reset circuit 8K Bytes Flash ROM Internal 256 Bytes Data RAM Watch Dog Port 0 Configuration I/O Port 1 Configuration I/O Timer0 (16bit) Timer1 (16bit) Timer2 (16bit) External Interrupt Port 2 Configuration I/O Port 3 Configuration I/O XTAL1 XTAL2 12-bit PWM 8-bit PWM 8-bit PWM Internal Oscillator Oscillator buzzer SPI EUART 10-bit ADC JTAG ports (for debug) SH79F081A RST P0.2 - P0.7 P1.2 - P1.7 P2.0 - P2.7 P3.0 - P3.5 2 4. Pin Configuration 28 SOP TDO/INT43/AN4/P1.2 TMS/INT42/AN5/P1.3 TDI/INT41/AN6/P1.4 TCK/INT40/AN7/P1.5 T0/P1.6 RST/P1.7 XTAL2/P3.3 XTAL1/P3.4 VDD VSS T2EX/P3.2 T2/INT0/P3.1 FLT/SS/P3.0 P3.5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SH79F081AM SH79F081A 28 P0.2/AN0 27 P0.3/AN1 26 P0.4/AN2 25 P0.5/AN3 24 P0.6/T1 23 P0.7/INT1/PWM21 22 P2.5/PWM1 21 P2.6/INT45/PWM01 20 P2.7/INT46/PWM11 19 P2.4/PWM0 18 P2.3/PWM2 17 P2.2/MOSI/RXD 16 P2.1/MISO/TXD 15 P2.0/SCK/BZ 3 SH79F081A Table 4.1 Pin Function Pin No. 1 2 3 Pin Name TDO/INT43/AN4/P1.2 TMS/INT42/AN5/P1.3 TDI/INT41/AN6/P1.4 P1.2 P1.3 P1.4 Default Function 4 TCK/INT40/AN7/P1.5 5 T0/P1.6 6 ———— RST/P1.7 9 VDD 10 VSS 8 XTAL1/P3.4 P1.5 P1.6 Reset pin or P1.7 (code option) --------P3.4 or osc input pin (code option) 7 XTAL2/P3.3 11 T2EX/P3.2 12 T2/INT0/P3.1 13 ——— FLT/ SS /P3.0 14 P3.5 15 BZ/SCK/P2.0 P3.3 or osc output pin (code option) P3.2 P3.1 P3.0 P3.5 P2.0 16 TXD/MISO/P2.1 17 RXD/MOSI/P2.2 18 PWM2/P2.3 P2.1 P2.2 P2.3 19 PWM0/P2.4 22 PWM1/P2.5 21 PWM01/INT45/P2.6 P2.4 P2.5 P2.6 20 PWM11/INT46/P2.7 23 PWM21/INT1/P0.7 24 T1/P0.6 P2.7 P0.7 P0.6 *25 AN3/P0.5 *26 AN2/P0.4 *27 AN1/P0.3 P0.5 P0.4 P0.3 *28 AN0/P0.2 P0.2 *Note: P0.2, P0.3, P0.4, P0.5 are configured as N-channel open drain I/O The out most pin function has the highest priority, and the inner most pin function has the lowest priority (Refer to Pin Configuration Diagram. This means when one pin is occupied by a higher priority function (if enabled) cannot be used as the lower priority functional pin, even when the lower priority function is also enabled. Until the higher priority function is closed by software, can the corresponding pin be released for the lower priority function use. 4 SH79F081A 5. Pin Description Pin No. Type Description I/O PORT P0.2 - P0.7 P1.2 - P1.7 P2.0 - P2.7 P3.0 - P3.5 I/O 6 bit General purpose CMOS I/O I/O 6 bit General purpose CMOS I/O I/O 8 bit General purpose CMOS I/O I/O 6 bit General purpose CMOS I/O Timer T0 T1 T2 T2EX PWM0 PWM1 PWM2 PWM01 PWM11 PWM21 FLT I/O Timer0 external input/Comparator output I/O Timer1 external input/Comparator output I/O Timer2 external input/ Baud-Rate generator I Timer 2 Reload/Capture/Direction Control O Output pin for 12-bit PWM timer O Output pin for 8-bit PWM timer O Output pin for 8-bit PWM timer O Output pin for 12-bit PWM timer with fixed phase relationship of PWM0 O Output pin for 8-bit PWM timer with fixed phase relationship of PWM1 O Output pin for 8-bit PWM timer with fixed phase relationship of PWM2 I PWM Fault Detect input EUART RXD TXD I/O EUART data input O EUART data o.


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