ATMEGA88A-MUR Atmel, ATMEGA88A-MUR Datasheet - Page 315

• Manufacturer Part Number: ATMEGA88A-MUR
• Description: IC MCU AVR 8K FLASH 32QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA88A-MUR

• 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: 23
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 27-8. Serial Programming Instruction example
27.8.4
8271C–AVR–08/10
Byte 1
SPI Serial Programming Characteristics
Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Bit 15 B
Byte 2
Adr M M S S B
A
Figure 27-9. Serial Programming Waveforms
For characteristics of the SPI module see “SPI Timing Characteristics” on page 324.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
SERIAL DATA OUTPUT
SERIAL CLOCK INPUT
SERIAL DATA INPUT
Byte 3
Adr LSB
Page Offset
SAMPLE
(MOSI)
(MISO)
0
(SCK)
Serial Programming Instruction
Byte 4
Program Memory/
EEPROM Memory
MSB
MSB
Page Buffer
Page N-1
Page 0
Page 1
Page 2
Byte 1
Page Number
Bit 15 B
Write Program Memory Page/
Write EEPROM Memory Page
Byte 2
Adr MSB
Byte 3
A A dr r L L SB B
0
Byte 4
LSB
LSB
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