ATMEGA88A-MMH Atmel, ATMEGA88A-MMH Datasheet - Page 25
![IC MCU AVR 8K FLASH 28QFN](/photos/12/32/123209/28m1-vqfn_sml.jpg)
ATMEGA88A-MMH
Manufacturer Part Number
ATMEGA88A-MMH
Description
IC MCU AVR 8K FLASH 28QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA88A-MMH
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
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 25 of 566
- Download datasheet (23Mb)
7.6.4
7.6.5
7.6.6
8271C–AVR–08/10
GPIOR2 – General Purpose I/O Register 2
GPIOR1 – General Purpose I/O Register 1
GPIOR0 – General Purpose I/O Register 0
The next code examples show assembly and C functions for reading the EEPROM. The exam-
ples assume that interrupts are controlled so that no interrupts will occur during execution of
these functions.
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
Bit
0x2B (0x4B)
Read/Write
Initial Value
Bit
0x2A (0x4A)
Read/Write
Initial Value
Bit
0x1E (0x3E)
Read/Write
Initial Value
Assembly Code Example
C Code Example
EEPROM_read:
unsigned char EEPROM_read(unsigned int uiAddress)
{
}
; Wait for completion of previous write
sbic EECR,EEPE
rjmp EEPROM_read
; Set up address (r18:r17) in address register
out EEARH, r18
out EEARL, r17
; Start eeprom read by writing EERE
sbi EECR,EERE
; Read data from Data Register
in
ret
/* Wait for completion of previous write */
while(EECR & (1<<EEPE))
/* Set up address register */
EEAR = uiAddress;
/* Start eeprom read by writing EERE */
EECR |= (1<<EERE);
/* Return data from Data Register */
return EEDR;
;
r16,EEDR
MSB
MSB
MSB
R/W
R/W
R/W
7
0
7
0
7
0
R/W
R/W
R/W
6
0
6
0
6
0
R/W
R/W
R/W
5
0
5
0
5
0
R/W
R/W
R/W
4
0
4
0
4
0
R/W
R/W
R/W
3
0
3
0
3
0
R/W
R/W
R/W
2
0
2
0
2
0
R/W
R/W
R/W
1
0
1
0
1
0
LSB
R/W
LSB
R/W
LSB
R/W
0
0
0
0
0
0
GPIOR2
GPIOR1
GPIOR0
25
Related parts for ATMEGA88A-MMH
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATMEGA88-20AI](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
![ATmega88](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATmega88 Automotive](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATMEGA88-15MZ](/photos/30/99/309943/qfn-32_tmb.jpg)
Part Number:
Description:
MCU AVR 8K FLASH 15MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20AU](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K 20MHZ 5V 32TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20MU](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K 20MHZ 5V 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20PU](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC AVR MCU 8K 20MHZ 5V 28DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20AJ](/photos/6/91/69154/313-32-tqfp_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 32-TQFP
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20MI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20MJ](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 32-QFN
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20PI](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20PJ](/photos/7/21/72189/453-28-dip_tmb.jpg)
Part Number:
Description:
IC MCU AVR 8K 5V 20MHZ 28-DIP
Manufacturer:
Atmel
Datasheet:
![ATMEGA88-20AUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 8K FLASH 20MHZ 32TQFP
Manufacturer:
Atmel
Datasheet: