ATMEGA168PA-PU Atmel, ATMEGA168PA-PU Datasheet - Page 167
ATMEGA168PA-PU
Manufacturer Part Number
ATMEGA168PA-PU
Description
MCU, 8BIT, AVR, 16K FLASH, 28PDIP
Manufacturer
Atmel
Datasheet
1.ATMEGA48A-PU.pdf
(566 pages)
Specifications of ATMEGA168PA-PU
Controller Family/series
Atmega
No. Of I/o's
23
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Cpu Speed
20MHz
No.
RoHS Compliant
Core Size
8bit
Program Memory Size
16KB
Oscillator Type
External, Internal
Rohs Compliant
Yes
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18. SPI – Serial Peripheral Interface
18.1
18.2
8271C–AVR–08/10
Features
Overview
•
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•
•
•
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATmega48A/48PA/88A/88PA/168A/168PA/328/328P and peripheral devices or between sev-
eral AVR devices.
The USART can also be used in Master SPI mode, see “USART in SPI Mode” on page 205. The
PRSPI bit in
module.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Full-duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
”Minimizing Power Consumption” on page 42
must be written to zero to enable SPI
167
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