ATMEGA88-20MUR Atmel, ATMEGA88-20MUR Datasheet - Page 37
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATMEGA88-20MUR
Manufacturer Part Number
ATMEGA88-20MUR
Description
MCU AVR 8K FLASH 20MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA88-20MUR
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SPI/TWI/USART
Total Internal Ram Size
1KB
# I/os (max)
23
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Package Type
MLF EP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 37 of 378
- Download datasheet (8Mb)
2545S–AVR–07/10
The CKDIV8 Fuse determines the initial value of the CLKPS bits. If CKDIV8 is unprogrammed,
the CLKPS bits will be reset to “0000”. If CKDIV8 is programmed, CLKPS bits are reset to
“0011”, giving a division factor of 8 at start up. This feature should be used if the selected clock
source has a higher frequency than the maximum frequency of the device at the present operat-
ing conditions. Note that any value can be written to the CLKPS bits regardless of the CKDIV8
Fuse setting. The Application software must ensure that a sufficient division factor is chosen if
the selected clock source has a higher frequency than the maximum frequency of the device at
the present operating conditions. The device is shipped with the CKDIV8 Fuse programmed.
Table 8-14.
CLKPS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Clock Prescaler Select
CLKPS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
CLKPS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
CLKPS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
ATmega48/88/168
Clock Division Factor
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
128
256
16
32
64
1
2
4
8
37
Related parts for ATMEGA88-20MUR
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: