Microcontrollers - MCUs
ATMEGA164P-20MU
MCU 8-bit AVR RISC 16KB Flash 3.3V/5V 44-Pin VQFN EP Tray
Microchip TechnologyProduct Technical Specifications
EU RoHS
Compliant
ECCN (US)
EAR99
Part Status
Active
HTS
8542.31.00.15
Automotive
No
PPAP
No
Family Name
ATmega
Instruction Set Architecture
RISC
Device Core
AVR
Core Architecture
AVR
Maximum CPU Frequency (MHz)
20
Maximum Clock Rate (MHz)
20
Data Bus Width (bit)
8
Program Memory Type
Flash
Program Memory Size
16KB
RAM Size
1KB
Programmability
Yes
Interface Type
JTAG/TWI/SPI/USART
Number of I/Os
32
No. of Timers
3
Timers Resolution (bit)
8/8/16
PWM
6
Number of ADCs
1
ADC Channels
8
ADC Resolution (bit)
10
USART
2
UART
0
USB
0
SPI
3
I2C
0
I2S
0
CAN
0
Ethernet
0
Watchdog
1
Analog Comparators
1
Parallel Master Port
No
Real Time Clock
Yes
Minimum Operating Supply Voltage (V)
2.7
Typical Operating Supply Voltage (V)
3.3|5
Maximum Operating Supply Voltage (V)
5.5
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
85
Supplier Temperature Grade
Industrial
Packaging
Tray
Mounting
Surface Mount
Package Height
0.88
Package Width
7
Package Length
7
PCB changed
44
Standard Package Name
QFN
Supplier Package
VQFN EP
Pin Count
44
Lead Shape
No Lead

