ATMEGA324PA-AUR Atmel, ATMEGA324PA-AUR Datasheet - Page 163
ATMEGA324PA-AUR
Manufacturer Part Number
ATMEGA324PA-AUR
Description
MCU AVR 32KB FLASH 20 MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324PA-AUR.pdf
(468 pages)
Specifications of ATMEGA324PA-AUR
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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17. SPI – Serial Peripheral Interface
17.1
17.2
8152G–AVR–11/09
Features
Overview
•
•
•
•
•
•
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATmega164PA/324PA/644PA/1284P and peripheral devices or between several AVR devices.
USART can also be used in Master SPI mode, see
The Power Reduction SPI bit, PRSPI, in
50 must be written to zero to enable SPI module.
Figure 17-1. SPI Block Diagram
Note:
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
1. Refer to
/2/4/8/16/32/64/128
DIVIDER
Figure 1-1 on page
ATmega164PA/324PA/644PA/1284P
(1)
2, and
”PRR – Power Reduction Register” on page 49
Table 13-6 on page 84
”USART in SPI Mode” on page
for SPI pin placement.
200.
on page
163
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