●Description
●Atmel TS8xC51Rx2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller.
●The TS8xC51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters.
●In addition, the TS80C51Rx2 has a Programmable Counter Array, an XRAM of 256 or 768 bytes, a Hardware Watchdog Timer, a more versatile serial channel that facilitates multiprocessor communication (EUART) and an X2 speed improvement mechanism.
●Features
●• 80C52 Compatible
● – 8051 pin and instruction compatible
● – Four 8-bit I/O ports
● – Three 16-bit timer/counters
● – 256 bytes scratchpad RAM
●• High-Speed Architecture
● – 40 MHz @ 5V, 30MHz @ 3V
● – X2 Speed Improvement capability (6 clocks/machine cycle)
● – 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to
● – 60 MHz @ 5V, 40 MHz @ 3V)
●• Dual Data Pointer
●• On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-bytes)
●• On-chip eXpanded RAM (XRAM) (256 or 768 bytes)
●• Programmable Clock Out and Up/Down Timer/Counter 2
●• Programmable Counter Array with
● – High Speed Output,
● – Compare / Capture,
● – Pulse Width Modulator,
● – Watchdog Timer Capabilities
●• Hardware Watchdog Timer (One-time enabled with Reset-Out)
●• 2 extra 8-bit I/O ports available on RD2 with high pin count packages
●• Asynchronous port reset
●• Interrupt Structure with
● – 7 Interrupt sources,
● – 4 level priority interrupt system
●• Full duplex Enhanced UART
● – Framing error detection
● – Automatic address recognition
●• Low EMI (inhibit ALE)
●• Power Control modes
● – Idle mode
● – Power-down mode
● – Power-off Flag
●• Once mode (On-chip Emulation)
●• Power supply: 4.5-5V, 2.7-5.5V
●• Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85oC)
●• Packages: PDIL40, PLCC44, VQFP44 1.4, PLCC68, VQFP64 1.4
