ATMEGA48-20AU Atmel, ATMEGA48-20AU Datasheet - Page 371
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ATMEGA48-20AU
Manufacturer Part Number
ATMEGA48-20AU
Description
IC AVR MCU 4K 20MHZ 5V 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA48-20AU
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
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 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
32-TQFP, 32-VQFP
Processor Series
ATMEGA48x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
2-Wire/SPI/USART/Serial
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Cpu Family
ATmega
Device Core
AVR
Device Core Size
8b
Frequency (max)
20MHz
Total Internal Ram Size
512Byte
# 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
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
32
Package Type
TQFP
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA48-20AU
Manufacturer:
ATMEL
Quantity:
6 460
Company:
Part Number:
ATMEGA48-20AU
Manufacturer:
Atmel
Quantity:
1 300
Company:
Part Number:
ATMEGA48-20AU
Manufacturer:
ATMEL
Quantity:
9 500
Part Number:
ATMEGA48-20AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
13 I/O-Ports .................................................................................................. 70
14 8-bit Timer/Counter0 with PWM ............................................................ 88
15 16-bit Timer/Counter1 with PWM ........................................................ 107
16 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 136
17 8-bit Timer/Counter2 with PWM and Asynchronous Operation ...... 139
2545S–AVR–07/10
13.1Overview ................................................................................................................70
13.2Ports as General Digital I/O ...................................................................................71
13.3Alternate Port Functions ........................................................................................75
13.4Register Description ..............................................................................................86
14.1Features ................................................................................................................88
14.2Overview ................................................................................................................88
14.3Timer/Counter Clock Sources ...............................................................................90
14.4Counter Unit ..........................................................................................................90
14.5Output Compare Unit .............................................................................................91
14.6Compare Match Output Unit ..................................................................................92
14.7Modes of Operation ...............................................................................................93
14.8Timer/Counter Timing Diagrams ...........................................................................98
14.9Register Description ............................................................................................100
15.1Features ..............................................................................................................107
15.2Overview ..............................................................................................................107
15.3Accessing 16-bit Registers ..................................................................................109
15.4Timer/Counter Clock Sources .............................................................................112
15.5Counter Unit ........................................................................................................113
15.6Input Capture Unit ...............................................................................................114
15.7Output Compare Units .........................................................................................116
15.8Compare Match Output Unit ................................................................................118
15.9Modes of Operation .............................................................................................119
15.10Timer/Counter Timing Diagrams .......................................................................126
15.11Register Description ..........................................................................................129
16.1Register Description ............................................................................................138
17.1Features ..............................................................................................................139
17.2Overview ..............................................................................................................139
17.3Timer/Counter Clock Sources .............................................................................140
17.4Counter Unit ........................................................................................................140
17.5Output Compare Unit ...........................................................................................141
ATmega48/88/168
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