ATMEGA164P-20PQ Atmel, ATMEGA164P-20PQ Datasheet - Page 311
![MCU AVR 16K FLASH 20MHZ 40-PDIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA164P-20PQ
Manufacturer Part Number
ATMEGA164P-20PQ
Description
MCU AVR 16K FLASH 20MHZ 40-PDIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164P-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
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K 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-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 24-11. Serial Programming Instruction example
8011O–AVR–07/10
Byte 1
Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Bit 15 B
Byte 2
Adr MSB
Adr dr M
A
r MS S B
Notes:
If the LSB in RDY/BSY data byte out is ‘1’, a programming operation is still pending. Wait until
this bit returns ‘0’ before the next instruction is carried out.
Within the same page, the low data byte must be loaded prior to the high data byte.
After data is loaded to the page buffer, program the EEPROM page, see
311.
1. Not all instructions are applicable for all parts.
2. a = address.
3. Bits are programmed ‘0’, unprogrammed ‘1’.
4. To ensure future compatibility, unused Fuses and Lock bits should be unprogrammed (‘1’) .
5. Refer to the correspondig section for Fuse and Lock bits, Calibration and Signature bytes and
6. Instructions accessing program memory use a word address. This address may be random
7. See htt://www.atmel.com/avr for Application Notes regarding programming and programmers.
Byte 3
Adr LSB
Page size.
within the page range.
Page Offset
0
Serial Programming Instruction
Byte 4
Program Memory/
EEPROM Memory
Page Buffer
Page N-1
Page 0
Page 1
Page 2
Byte 1
Page Number
Bit 15 B
ATmega164P/324P/644P
Write Program Memory Page/
Write EEPROM Memory Page
Byte 2
Adr MSB
Byte 3
Adr LSB
A A dr dr LS
LSB
SB
Figure 24-11 on page
0
Byte 4
311
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