RS-232 Interface IC LOW POWER, 3V, RS-232 I.C.

Precision Analog Microcontrollers, Analog I/O with MDIO Interface, ARM Cortex-M3 Features: Analog input/output Multichannel, 12-bit, 1 MSPS analog-to-digital converter (ADC) Up to 16 ADC input channels 0 V to VREF analog input range Single-ended modes AVDD and IOVDD monitors 12-bit voltage output digital-to-analog converters (VDACs) 8 VDACs with a range of 0 V to 2.5 V or AVDD outputs Voltage comparator Microcontroller ARM Cortex-M3 processor, 32-bit RISC architecture Serial wire port supports code download and debug Clocking options 80 MHz phase-locked loop (PLL) with programmable divider Trimmed on-chip oscillator (±3%) External 16 MHz crystal option External clock source up to 80 MHz Memory 2 × 128 kB independent Flash/EE memories 10,000 cycle Flash/EE endurance 20-year Flash/EE retention 32 kB SRAM Software triggered in-circuit reprogrammability via management data input/output (MDIO) On-chip peripherals MDIO slave up to 4 MHz 2 × I2C, 2 × SPI, UART Multiple general-purpose input/output (GPIO) balls: 3.6 V compliant 7 × 1.2 V compatible when used for MDIO 32-element programmable logic array (PLA) 3 general-purpose timers Wake-up timer Watchdog timer 16-bit pulse width modulator (PWM) Power Supply range: 2.9 V to 3.6 V Flexible operating modes for low power applications Packages and temperature range 6 mm × 6 mm, 96-ball CSP_BGA package Fully specified for −40°C to +105°C ambient operation Tools QuickStart development system Full third-party support

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Very Low Quiescent Current, 150 mA, with Output Discharge LDO Regulator Features: Very low quiescent current IQ = 590 nA with 0 µA load IQ = 890 nA with 1 µA load Maintains very low quiescent current in dropout (pass through mode): IQ_DROP = 720 nA with 0 µA load IQ_DROP = 1200 nA with 1 µA load Stable with 1 µF ± 30% ceramic input and output capacitors Maximum load current: ILOAD_MAX: 150 mA Input voltage range: 2.2 V to 5.5 V Low shutdown current: 50 nA typical Low dropout voltage: 120 mV at 150 mA load Initial output voltage accuracy: ±1% Accuracy over line, load, and temperature: ±3.5% 7 fixed output voltage options: 1.2 V to 3.3 V Adjustable output option can be set from 1.2 V to 4.2 V See data sheet for additional features

Very Low Quiescent Current, 150 mA, with Output Discharge LDO Regulator Features: Very low quiescent current IQ = 590 nA with 0 µA load IQ = 890 nA with 1 µA load Maintains very low quiescent current in dropout (pass through mode): IQ_DROP = 720 nA with 0 µA load IQ_DROP = 1200 nA with 1 µA load Stable with 1 µF ± 30% ceramic input and output capacitors Maximum load current: ILOAD_MAX: 150 mA Input voltage range: 2.2 V to 5.5 V Low shutdown current: 50 nA typical Low dropout voltage: 120 mV at 150 mA load Initial output voltage accuracy: ±1% Accuracy over line, load, and temperature: ±3.5% 7 fixed output voltage options: 1.2 V to 3.3 V Adjustable output option can be set from 1.2 V to 4.2 V See data sheet for additional features

High Speed, 4-Channel, 8-Bit CMOS ADC Features: 4 or 8 Analog Input Channels Built-In Track-and-Hold Function 10 kHz Signal Handling on Each Channel Fast Microprocessor Interface Single 5 V Supply Low Power: 50 mW Fast Conversion Rate: 2.5 µs/Channel Tight Error Specification: 1/2 LSB

R/D Converter 10, 12, 14, 16 b Parallel 40-CDIP