ATMEGA325V-8AU Atmel, ATMEGA325V-8AU Datasheet - Page 148

• Manufacturer Part Number: ATMEGA325V-8AU
• Description: IC AVR MCU 32K 8MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA325V-8AU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• 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: 64-TQFP, 64-VQFP
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18. SPI – Serial Peripheral Interface
18.1
18.2
2570M–AVR–04/11
Features
Overview
The Atmel ATmega325/3250/645/6450 SPI includes the following features:
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
Atmel ATmega325/3250/645/6450 and peripheral devices or between several AVR devices.
The PRSPI bit in
SPI module.
Figure 18-1. 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
“Power Reduction Register” on page 37
Figure 1-1 on page
(1)
2, and
Table 13-3 on page 68
ATmega325/3250/645/6450
must be written to zero to enable the
for SPI pin placement.
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