L9805E Super smart power motor driver with 8-Bit MCU, RAM, EEPROM, ADC, WDG, Timers, PWM and H-bridge driver Features 6.4-18V supply operating range 16 MHz maximum oscillator frequency 8 MHz maximum internal clock frequency Oscillator supervisor Fully static operation HiQUAD64 -40C to + 150C temperature range User EPROM/OTP: 16 Kbytes Data RAM: 256 bytes 10-bit analog-to-digital converter Data EEPROM: 128 bytes Software watchdog for system integrity 64 pin HiQUAD64 package Master reset, power-on reset, low voltage reset 10 multifunctional bidirectional I/O lines 90m DMOS H-bridge. Two 16-bit Timers, each featuring: 8-bit data manipulation 2 input captures 63 basic Instructions and 17 main addressing 2 output compares modes External clock input (on Timer 1) 8 x 8 unsigned multiply instruction PWM and pulse generator modes True bit manipulation Two programmable 16-bit PWM generator modules. Complete development support on TM DOS/WINDOWS Real-Time Emulator K line transceiver Full software package on DOS/WINDOWS CAN peripheral including bus line interface (C-Compiler, Cross-Assembler, Debugger). according 2A/B passive specifications Table 1. Device summary Part number Package Packing L9805E HiQUAD64 Tray September 2013 Rev 3 1/125 www.st.com 1Contents L9805E Contents 1 General description 8 1.1 Introduction 8 1.2 OTP, ROM and EPROM devices 8 1.3 Pin out . 10 1.4 Pin description . 10 1.5 Register & memory map . 11 2 Central processing unit (CPU) 15 2.1 Introduction . 15 2.2 CPU registers 15 3 Clocks, reset, interrupts & power saving modes . 18 3.1 Clock system 18 3.1.1 General description 18 3.1.2 External clock 19 3.2 Oscillator safeguard . 20 3.2.1 Dedicated control status register 20 3.3 Watchdog system (WDG) . 21 3.3.1 Introduction 21 3.3.2 Main features . 21 3.3.3 Functional description 21 3.3.4 Register description 23 3.4 Miscellaneous register . 23 3.5 Reset 24 3.5.1 Introduction 24 3.5.2 External reset . 25 3.5.3 Reset operation . 25 3.5.4 Power-on reset - Low voltage detection . 25 3.6 Interrupts . 27 3.7 Power saving modes 29 3.7.1 Introduction 29 3.7.2 Slow mode . 29 3.7.3 Wait mode . 29 2/125