ATMEGA644P-20PQ Atmel, ATMEGA644P-20PQ Datasheet - Page 420

• Manufacturer Part Number: ATMEGA644P-20PQ
• Description: MCU AVR 64K FLASH 20MHZ 40-PDIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA644P-20PQ

• 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: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

29. Ordering Information
29.1
Notes:
8011O–AVR–07/10
44A
40P6
44M1
Speed (MHz)
ATmega164P
1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information
2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
3. For Speed vs. V
10
20
and minimum quantities.
Halide free and fully Green.
44-lead, Thin (1.0 mm) Plastic Gull Wing Quad Flat Package (TQFP)
40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44-pad, 7 × 7 × 1.0 mm body, lead pitch 0.50 mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN)
(3)
CC
Power Supply
1.8V - 5.5V
2.7V - 5.5V
see
”Speed Grades” on page
Ordering Code
ATmega164PV-10AU
ATmega164PV-10PU
ATmega164PV-10MU
ATmega164P-20AU
ATmega164P-20PU
ATmega164P-20MU
Package Type
329.
(2)
(2)
(2)
(2)
(2)
(2)
ATmega164P/324P/644P
Package
44A
40P6
44M1
44A
40P6
44M1
(1)
Operational Range
(-40
Industrial
o
C to 85
o
C)
420