Features: • 80C51 Compatible
• Three I/O ports
• Two 16-bit timer/counters
• 256 bytes RAM
• 4 Kbytes ROM/OTP program memory with 64 bytesencryption array and 3 security levels.
• High-Speed Architecture
• 33MHz @ 5V (66 MHz equivalent)
• 20MHz @ 3V (40 MHz equivalent)
• X2 Speed Improvement capability (6 clocks/machine cycle)
• 10-bit, 8 channels A/D converter
• Voltage reference for A/D & external analog
• Hardware Watchdog Timer with integrated lowpower oscillator (20µA).
• Programmable I/O mode: standard C51, input only,push-pull, open drain.
• Asynchronous port reset, Power On Reset, Powerfail Detect
• Full duplex Enhanced UART with baud rate generator
• SPI, master/slave mode
• Dual system clock
• Crystal or ceramic oscillator with hardware setup (32 KHz or 33/40 MHz)
• Internal RC oscillator (12 MHz)
• Programmable prescaler
• Active oscillator during reset defined by hardwareset up
• Timer 0 subclock mode for Real Time Clock.
• Programmable counter array with High speed output,Compare / Capture, Pulse Width Modulation andWatchdog timer capabilities
• Interrupt Structure with:
• 8 Interrupt sources,
• 4 interrupt priority levels
• Power Control modes:
• Idle mode
• Power-down mode
• Power-off Flag, Power fail detect, Power on Reset
• Power supply: 2.7 to 5.5V
• Temperature ranges: Commercial (0 to 70oC) andIndustrial (-40 to 85o C)
Pinout
SpecificationsAmbiant Temperature Under Bias:
C = commercial 0°Cto70°C
I = industrial -40°Cto85°C
Storage Temperature -65°Cto+150°C
Voltage on VCC to VSS -0.5Vto+7V
Voltage on VPP to VSS -0.5Vto+13V
Voltage on Any Pin to VSS -0.5VtoVCC + 0.5 V
Power Dissipation 1 W(2)DescriptionThe T80C5111 is a high performance ROM/OTP versionof the 80C51 8-bit microcontroller in Low Pin Countpackage.
The T80C5111 retains all the features of the standard80C51 with 4 Kbytes ROM/OTP program memory, 256bytes of internal RAM, a 8-source , 4-level interruptsystem, an on-chip oscillator and two timer/counters.
The T80C5111 is dedicated for analog interfacingapplications. For this, it has an 10-bit, 8 channels A/Dconverter and a five channels Programmable CounterArray.
In addition, the T80C5111 has a Hardware WatchdogTimer with its own low power oscillator, a versatileserial channel that facilitates multiprocessorcommunication (EUART) with an independent baud rategenerator, a SPI serial bus controller and a X2 speedimprovement mechanism. The X2feature allows to keepthe same CPU power at a divided by two oscillatorfrequency. The prescaler allows to decrease CPU andperipherals clock frequency.
The fully static design of the T80C5111 allows to reducesystem power consumption by bringing the clockfrequency down to any value, even DC, without loss ofdata.
The T80C5111 has 3 software-selectable modes ofreduced activity for further reduction in powerconsumption. In the idle mode the CPU is frozen whilethe peripherals are still operating. In the quiet mode, theA/D converter only is operating. In the power-downmode the RAM is saved and all other functions areinoperative. Two oscillators source, crystal and RC,provide a versatile power management.
The T80C5111 is proposed in low pin count packages.Port 0 and Port 2 (address / data busses) are not available .
T80C5111 Data Sheet
