FEATURES

► High precision ADCs

► Dual-channel, simultaneous sampling

► IADC 20-bit Σ-Δ (minimizes range switching)

► VADC/TADC 20-bit Σ-Δ

► Programmable ADC conversion rate from 4 Hz to 8 kHz

► On-chip ±5 ppm/°C voltage reference

► Current channel

► Fully differential, buffered input

► Programmable-gain (from 4 to 512)

► ADC absolute input range: −200 mV to +300 mV

► Digital comparator with current accumulator feature

► Voltage channel

► Buffered, on-chip attenuator for 12 V battery input

► Temperature channel

► External and on-chip temperature sensor options

► Microcontroller

► ARM Cortex-M3 32-bit processor

► 16.384 MHz precision oscillator with 1% accuracy (high precision)

► Serial wire debug (SWD) port supporting code download and

debug

► Automotive qualified integrated LIN transceiver

► LIN 2.2A-compatible target, 100 kbaud fast download option

► SAE J2602-compatible target

► Low electromagnetic emissions

► High electromagnetic immunity

► Memory

► 128 kB programmable Flash/EE memory, ECC

► 10 kB SRAM, ECC

► 4 kB data Flash/EE memory, ECC

► 10,000 cycle Flash/EE endurance

► 20 year Flash/EE retention

► In circuit download via SWD and LIN

► On-chip peripherals

► SPI

► GPIO port

► General-purpose timer

► Wake-up timer

► Watchdog timer

► On-chip, power-on reset

► Power

► Operates directly from 12 V battery supply

► Power consumption, 8 mA typical (16 MHz) at TA = −40°C to

+115°C

► Low power monitor mode

► Package and temperature range

► 32-lead, LFCSP, 6 mm x 6 mm package

► Fully specified for −40°C to +115°C operation, additional specifications

for 115°C to 125°C

► AEC-Q100 qualified for automotive applications

► The ADuCM342WFS is developed for use in ISO 26262 applications

for automotive safety integrity level capability C (ASIL C)

supporting single-point fault metric (SPFM) 90% and latent fault

metric (LFM) 60% at the IC component level.

APPLICATIONS

► Battery sensing and management for automotive and light mobility

vehicles

► Auxiliary battery monitoring in xEV

► Lead acid battery measurement for power supplies in industrial

and medical domains