FEATURES High precision analog-to-digital converters (ADCs) Dual channel, simultaneous sampling, 16-bit Σ-Δ ADCs Third independent ADC for temperature sensing Programmable ADC throughput from 1 Hz to 8 kHz On-chip 5 ppm/°C voltage reference Current channel Fully differential, buffered input Programmable gain: 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 options Microcontroller 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 debug Memory 96 kB Flash/EE memory, 6 kB SRAM 10k-cycle Flash/EE endurance, 20-year Flash/EE retention In-circuit download via JTAG and LIN 64 × 16-bit result FIFO for current and voltage ADC On-chip peripherals LIN 1.3- and 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, 2× general-purpose timers Wake-up and watchdog timers Power supply monitor, on-chip power-on reset Power Operates directly from 12 V battery supply Current consumption Normal mode: 10 mA at 10 MHz Low power monitor mode: 175 μA Package and temperature range 48-lead, 7 mm × 7 mm LQFP Fully specified for −40°C to +105°C operation
APPLICATIONS Battery sensing/management for automotive systems
