Описание
This highly integrated circuit contains analog and digital functional blocks. For system and interface control an embedded 8-Bit state-of-the-art microcontroller, compatible to the standard 8051 core with On-Chip Debug Support (OCDS), is available. For internal and external power supply purposes, on-chip low drop-out regulators are existent. An internal oscillator provides a cost effective and suitable clock in particular for LIN slave nodes. As communication interface, a LIN transceiver and several High Voltage Monitor Inputs with adjustable threshold and filters are available. Furthermore two High Side Switches (e.g. for driving LEDs or cyclic powering of switches), two Low Side Switches (e.g. for relays) and several general purpose input/outputs (GPIO) with pulse-width modulation (PWM) capabilities are available. The Micro Controller Unit (MCU) supervision and system protection including reset feature is controlled by a programmable window watchdog. A cyclic wake-up circuit, supply voltage supervision and integrated temperature sensors are available on-chip All relevant modules offer power saving modes in order to support terminal 30 connected automotive applications. A wake-up from the power saving mode is possible via a LIN bus message, via the monitoring inputs, via the GPIO ports or repetitive with a programmable time period (cyclic wake-up).
- High performance XC800 core
- compatible to standard 8051 core
- up to 40 MHz clock frequency
- two clocks per machine cycle architecture
- two data pointers
- On-chip memory
- 60 kByte + 4 kByte Flash for program code and data (4 kByte EEPROM emulation built-in)
- 512 Byte One Time Programmable Memory (OTP)
- 512 Byte 100 Time Programmable Memory (100TP)
- 256 Byte RAM, 3 kByte XRAM
- BootROM for startup firmware and Flash routines
- Core logic supply at 1.5 V
- On-chip OSC and PLL for clock generation
- Loss of clock detection with fail safe mode for power switches
- Watchdog timer (WDT) with programmable window feature for refresh operation and warning prior to overflow
- General-purpose I/O Port (GPIO) with wake-up capability
- Multiplication/division unit (MDU) for arithmetic calculation
- Software libraries to support floating point and MDU calculations
- Five 16-Bit timers – Timer 0, Timer 1, Timer 2, Timer 21 and Timer 3
- Capture/compare unit for PWM signal generation (CCU6) with Timer 12 and Timer 13
- Full duplex serial interface (UART) with LIN support
- Synchronous serial channel (SSC)
- On-chip debug support via 2-wire Device Access Port (DAP)
- LIN Bootstrap loader (LIN BSL)
- LIN transceiver compliant to LIN 2.1 and compatible to LIN 1.3, LIN 2.0 and LIN 2.2
- 2 x Low Side Switches with clamping capability incl. PWM functionality, e.g. as relay driver
- 2 x High Side Switches with cyclic sense option and PWM functionality, e.g. for LED or powering of switches
- 5 x High Voltage Monitor Input pins for wake-up and with cyclic sense and analog measurement option
- Measurement unit with 10 channels, 8-Bit A/D Converter (ADC2) and data post processing
- 8 channels, 10-Bit A/D Converter (including battery voltage and supply voltage measurement) (ADC1)
- Single power supply from 3.0 V to 27 V
- Low-dropout voltage regulators (LDO)
- Dedicated 5 V voltage regulator for external loads (e.g. hall sensor)
- Programmable window watchdog (WDT1) with independent on-chip clock source
- Operational amplifier for current sensing
- Power saving modes
- MCU slow-down mode
- Stop Mode
- Sleep Mode
- Cyclic wake-up and cyclic sense during Stop Mode and Sleep Mode
- Power-on and undervoltage/brownout reset generator
- Overtemperature protection
