Specification	AVR16EA28-E/STX

Connectivity	IrDA, SMBus, UART/USART, I2C, SPI
Core Processor	AVR
Core Size	8-Bit
Data Converters	D/A 1x10b, A/D 20x12b
EEPROM Size	512 x 8
Mounting Type	Surface Mount
Number of I/O	23
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Oscillator Type	External, Internal
Package / Case	28-VFQFN Exposed Pad
Program Memory Size	16 KB
Program Memory Type	FLASH
RAM Size	2K x 8
Speed	20 MHz
Supplier Device Package	28-VQFN (4x4)
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	1.8 V

AVR16EA28 Series

12-bit diff ADC/PGA, Flash RWW

Part	Oscillator Type	Core Processor	Package / Case [custom]	Package / Case	Package / Case [custom]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Program Memory Size	Operating Temperature [Max]	Operating Temperature [Min]	Program Memory Type	Number of I/O	EEPROM Size	Connectivity	RAM Size	Core Size	Mounting Type	Data Converters	Supplier Device Package	Speed	Package / Case	Package / Case
Microchip Technology AVR16EA28-I/SS	External Internal	AVR	0.209 in	28-SSOP	5.3 mm	1.8 V	5.5 V	16 KB	85 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-SSOP	20 MHz
Microchip Technology AVR16EA28-E/STX	External Internal	AVR		28-VFQFN Exposed Pad		1.8 V	5.5 V	16 KB	125 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-VQFN (4x4)	20 MHz
Microchip Technology AVR16EA28T-E/SS	External Internal	AVR	0.209 in	28-SSOP	5.3 mm	1.8 V	5.5 V	16 KB	125 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-SSOP	20 MHz
Microchip Technology AVR16EA28-E/SP	External Internal	AVR		28-DIP		1.8 V	5.5 V	16 KB	125 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Through Hole	A/D 20x12b D/A 1x10b	28-SPDIP	20 MHz	0.3 in	7.62 mm
Microchip Technology AVR16EA28T-I/STX	External Internal	AVR		28-VFQFN Exposed Pad		1.8 V	5.5 V	16 KB	85 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-VQFN (4x4)	20 MHz
Microchip Technology AVR16EA28-I/SP	External Internal	AVR		28-DIP		1.8 V	5.5 V	16 KB	85 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Through Hole	A/D 20x12b D/A 1x10b	28-SPDIP	20 MHz	0.3 in	7.62 mm
Microchip Technology AVR16EA28-I/STX	External Internal	AVR		28-VFQFN Exposed Pad		1.8 V	5.5 V	16 KB	85 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-VQFN (4x4)	20 MHz
Microchip Technology AVR16EA28T-I/SS	External Internal	AVR	0.209 in	28-SSOP	5.3 mm	1.8 V	5.5 V	16 KB	85 °C	-40 °C	FLASH	23	512 x 8	I2C IrDA SMBus SPI UART/USART	2K x 8	8-Bit	Surface Mount	A/D 20x12b D/A 1x10b	28-SSOP	20 MHz

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	728	$ 0.97
Microchip Direct	TUBE	1	$ 1.12
		25	$ 1.02
		100	$ 0.93
		1000	$ 0.85
		5000	$ 0.81

Description

General part information

AVR16EA28 Series

[Code Examples](https://mplab-discover.microchip.com/v2/category/com.microchip.code.examples?dsl=avr64ea48)

The AVR16EA28 is a microcontroller in the AVR® EA family featuring the AVR® CPU with hardware multiplier, running at up to 20 MHz and with 16 KB Flash with dedicated Read-While-Write (RWW) section, 2 KB SRAM and 512B of EEPROM available in 28-pin SPDIP, SSOP, and VQFN packages. The family uses the latest Core Independent Peripherals with low-power features including Event System, intelligent analog and advanced peripherals.

The new 12-bit ADC offers true differential measuring capabilities with optional hardware accumulation of up to 1024 samples, which effectively gives up to 17-bits resolution. With sampling rates up to 375 ksps the analog data is available very rapidly. The Programmable Gain Amplifier (PGA) for the ADC can amplify single-ended and differential analog inputs to make it possible to measure even small amplitude signals efficiently.

Documents

Technical documentation and resources

Datasheet

AVR16EA28-E/STX

Deep-Dive with AI

AVR16EA28-E/STX

Deep-Dive with AI

Technical Specifications

AVR16EA28 Series

Pricing

Description

AVR16EA28 Series

Documents

Datasheet

How to Use Force Sensitive Resistor with 12-bit ADC

AVR16EA28/32/48 Silicon Errata and Data Sheet Clarifications

Digital Signal Processing Performance of the 8-bit AVR Core

Interfacing AVR Microcontrollers with Serial memories

Using Matrix Keypad with AVR® Devices

AVR16EA28 Series