AVR128DA32ST-I/QZB

Description：128KB, 16KB RAM, 32P, 24MHZ, PDI
Series：AVR® DA
Mfr：Microchip Technology
Package：Tape & Reel (TR)
Core Processor：AVR

SKU:fd0f4d060214 Category: Microcontrollers Brand: Microchip Technology

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Product introduction

Product Detailed Parameters

Description：128KB, 16KB RAM, 32P, 24MHZ, PDI
Series：AVR® DA
Mfr：Microchip Technology
Package：Tape & Reel (TR)
Core Processor：AVR
Core Size：8-Bit
Speed：24MHz
Connectivity：I2C, SPI, UART/USART
Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O：26
Program Memory Size：128KB (128K x 8)
Program Memory Type：FLASH
EEPROM Size：512 x 8
RAM Size：16K x 8
Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
Data Converters：A/D 14x12b SAR; D/A 1x10b
Oscillator Type：Internal
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount, Wettable Flank
Supplier Device Package：32-VQFN (5x5)
Package / Case：32-VFQFN Exposed Pad
Grade：-
Qualification：-

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AVR128DA32ST-I/QZB

Overview

The AVR128DA32ST-I/QZB is an 8-bit microcontroller from the AVR DA(S) family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 B of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit ADC, 10-bit DAC, three analog comparators, and a Peripheral Touch Controller (PTC). It utilizes a 32-pin package.

Feature Summary

Supports Program and Debug Interface Disable (PDID) for secure firmware protection against unauthorized access.
Integrates a Peripheral Touch Controller (PTC) with Driven Shield+ technology for capacitive touch sensing.
Features an Event System for CPU-independent inter-peripheral signaling to reduce processing load.
Includes Configurable Custom Logic (CCL) with programmable Look-up Tables for custom digital logic implementation.

Applications

Secure embedded systems requiring firmware authentication
Capacitive touch interface designs
Industrial control applications
Low-power battery-operated devices

Procurement Notes

Verify the specific ordering suffixes to confirm package type and temperature rating. Ensure the PDID feature is enabled if security requirements mandate protection against UPDI access. Confirm that the selected variant matches the required pin count and peripheral availability for the target application design.

Selection Notes

Select this model when 128 KB of program memory and 16 KB of RAM are required alongside advanced analog features. The DA32 variant offers a balance of I/O pins and peripheral richness suitable for complex control tasks. Consider the PDID capability if secure boot or code protection is necessary for the end product.

Part Context

This component belongs to the AVR DA(S) family, which provides vertical migration compatibility across different pin counts and memory sizes without code modification. The DA series represents Microchip's next-generation 8-bit MCUs, focusing on low power consumption and enhanced analog performance compared to previous generations.