This is 3 New Atmel microcontollers model: ATMEGA324P-20AU. They come in an electrostatic protective pouch. For more information refer to the data sheet below. 

If you have any questions about these microcontrollers feel free to contact me. I will do my best to respond as quickly as possible. Thank you!

Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
EEPROM Size
1K x 8
RAM Size
2K x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
44-TQFP
Supplier Device Package
44-TQFP (10x10)