Document
Data Sheet
Precision Analog Microcontroller, Analog I/O with MDIO Interface, ARM Cortex-M3
ADuCM322
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
APPLICATIONS
Optical networking
FUNCTIONAL BLOCK DIAGRAM
BUF_VREF2V5
XTALO XTALI ECLKIN
AIN0 AIN5 AIN6 AIN15
VDAC0 VDAC7
2.5V BAND GAP
1.8 V LDO
MUX
SAR ADC
CLOCK SYSTEM 32.768kHz 16MHz OSC 80MHz PLL
INTERNAL CHANNELS: TEMPERATURE, AVDD, IOVDD
COMPARATOR VDAC
VDAC
ADuCM322
ARM CORTEX-M3 PROCESSOR
MEMORY 2 × 128kB FLASH
32kB SRAM
DMA NVIC
RESET SYSTEM
GPIO PORTS UART 2 × SPI 2 × I2C
EXT IRQS MDIO PLA
3 × GP TIMER WD TIMER
WAKE-UP TIMER PWM
SERIAL WIRE
DGNDx AVDDx AGNDx IOVDDx IOGNDx
GENERAL PURPOSE I/O PORTS
PWM0 TO PWM6
SWDIO SWCLK
13754-001
RESET
Figure 1.
Rev. A
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ADuCM322
TABLE OF CONTENTS
Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 General Description ......................................................................... 3 Specifications..................................................................................... 4
Microcontroller Electrical Specifications.................................. 4 Timing Specifications .................................................................. 8 Absolute Maximum Ratings ..................................................... 14
REVISION HISTORY
4/2018—Rev. 0 to Rev. A Changes to Table 1............................................................................ 4 Changes to Operating Junction Temperature Range, Table 9 .. 14 Updated Outline Dimensions ....................................................... 23
2/2016—Revision 0: Initial Version
Data Sheet
ESD Caution................................................................................ 14 Pin Configuration and Function Descriptions........................... 15 Typical Performance Characteristics ........................................... 20 Applications Information .............................................................. 21
Recommended Circuit and Component Values .................... 21 Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Rev. A | Page 2 of 23
Data Sheet
GENERAL DESCRIPTION
The ADuCM322 is a fully integrated, single package device that incorporates high performance analog peripherals together with digital peripherals controlled by an 80 MHz ARM® Cortex™-M3 processor and integral flash for code and data.
The ADC on the ADuCM322 provides 12-bit, 1 MSPS data acquisition on up to 16 input balls. Additionally, chip temperature and supply voltage.