Description

Integrated Precision Battery Sensor for Automotive Features:HIGH PRECISION ADCS Dual channel, simultaneous sampling, 16-bit, Σ-Δ ADCs Programmable ADC throughput from 1 Hz to 8 kHz On-chip 5 ppm/°C voltage reference Current channel Fully differential, buffered input Programmable gain from 1 to 512 ADC input range: −200 mV to +300 mV Digital comparators, with current accumulator feature Voltage channel Buffered, on-chip attenuator for 12 V battery inputs Temperature channel External and on-chip temperature sensor optionsMICROCONTROLLER ARM7TDMI® core, 16-/32-bit RISC architecture 20.48 MHz PLL with programmable divider PLL input source On-chip precision oscillator On-chip low power oscillator External (32.768 kHz) watch crystal JTAG port supports code download and debugMEMORY 96-kB Flash/EE memory, 6-kB SRAM 10,000-cycle Flash/EE endurance, 20-year Flash/EE retention In-circuit download via JTAG and LINON-CHIP PERIPHERALS SAEJ2602/LIN 1.3/LIN 2.0-compatible (slave) support via UART with hardware synchronization Flexible wake-up I/O pin, master/slave SPI® serial I/O 9-pin GPIO port, 3× general-purpose timers Wake-up and watchdog timers Power supply monitor, on-chip power-on-resetPOWER Operates directly from 12 V battery supply Current consumption Normal mode 10 mA at 10 MHz Low power monitor modePACKAGE AND TEMPERATURE RANGE 48-lead, 7 mm × 7 mm LFCSP Fully specified for −40°C to +115°C operation