General Description

XE8000 is a series of high performance, ultra low-power, low-voltage 8-bit MTP/ROM-based CMOS microcontrollers, some with advanced analog features. It is built around a high efficiency 8-bit RISC architecture. All instructions, including 8x8 bit multiplications, are executed in exactly 1 clock cycle (4 MHz clock и 4 MIPS). In comparison with other market competitors of the XE8000 series, it is more energy efficient by orders of magnitude.

Applications

• Portable, battery operated instruments
• RF powered instruments
• Battery capacity monitoring
• Motor control
• Low-power data loggers
• Bar code readers
• Home automation
• 4-20 mA loop
• Sensor interfacing

Functional description

The different functional blocks are connected to a common databus. The heart of the controller is a high efficiency RISC 8-bit core. The reset and oscillators are controlled by a system block that contains the watchdog and the prescaler to program the operating frequency. Three programmable I/O ports are available for external communication, interrupt and event catching or supplying the internal clock. Four 8-bit cascadable counters can be operated in PWM, capture or compare mode.

Other Peripherals:

• Multiple Time Programmable (MTP) memory
• UART (300 – 38400 bauds)
• 32 KHz Xtal oscillator
• RC oscillator: 100 kHz - 4 MHz; 2% software trimming
• Prescaler of 20 bits
• 19 interrupt sources (8 external)
• Up to 24 I/O pins individually controllable
• Analog switches matrix on 8 I/O pins
• Reset with input combination on I/O pins
• 4 cascadable 8 bit up-down counters with PWM, capture and compare
• Voltage Level Detection with programmable detection level
• 16 + 6 bits ADC
• 8 bits and 16 bits DACs

Sleep modes:

Each block can be individually stopped. Xtal oscillator and prescaler can work with 1 uA and generate 1 Hz interrupts while the CPU is stopped for ultra low-power operation.

Key product Features

• Low-voltage, down to 1.2 V
• Low-power operation: <300 uA @ 1 MHz (MTP memory) <10 uA @ 32 kHz <1 uA, standby mode (Xtal clock on)
• 16 + 6 bits zooming ADC, 16 bits DAC
• <100 nA, sleep mode
• 8-bit RISC architecture
• 8 kWords ROM or MTP ( = 22 kBytes)
• 512 bytes RAM

Ordering Information

• x - program memory
  • R: ROM
  • M: MTP
• y - temperature code:
  • I: -40 to 85 °C
  • E: -40 to 125 °C
• zzz - device and package code:
  • 000: bare die
  • 012: SO20
  • 015: SO28
  • 026: TQFP32
  • 027: TQFP44
  • 028: TQFP64

Electrical Characteristics

• Temperature -40 °C - 85 °C
• Voltage (XE88LC03R) 1.2 V – 5.5 V
• Voltage (other devices) 2.4 V – 5.5 V

CPU:

The XE8000 series uses the CoolRISC™ processor core with separate 22-bit instruction bus and 8-bit data bus. Its 3-stage pipeline allows execution of all instructions (including branches) in one clock cycle. The rich instruction set (35 generic instructions) includes powerful multiplication instructions (8x8 bits in one cycle). Data can be accessed through 8 different addressing modes.

Complete development environment

A complete development environment based on the standard GNU tools is provided. It includes an assembler, a C-compiler (ANSI compatible), a source level debugger, a simulator and a hardware emulator, as well as a graphical interface and project management tools.