ATMEGA48-20PU Atmel, ATMEGA48-20PU Datasheet - Page 374
![IC AVR MCU 4K 20MHZ 5V 28DIP](/photos/7/21/72189/453-28-dip_sml.jpg)
ATMEGA48-20PU
Manufacturer Part Number
ATMEGA48-20PU
Description
IC AVR MCU 4K 20MHZ 5V 28DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets
1.ATAVRTS2080B.pdf
(378 pages)
2.ATMEGA48-20AU.pdf
(35 pages)
3.ATMEGA48-20PU.pdf
(377 pages)
Specifications of ATMEGA48-20PU
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 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
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
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
6-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
Through Hole
Pin Count
28
Package Type
PDIP
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - 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
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27 Memory Programming ......................................................................... 284
28 Electrical Characteristics .................................................................... 302
29 Typical Characteristics ........................................................................ 314
vi
26.2Overview ..............................................................................................................268
26.3Application and Boot Loader Flash Sections .......................................................268
26.4Read-While-Write and No Read-While-Write Flash Sections ..............................269
26.5Boot Loader Lock Bits .........................................................................................271
26.6Entering the Boot Loader Program ......................................................................272
26.7Addressing the Flash During Self-Programming .................................................273
26.8Self-Programming the Flash ................................................................................274
26.9Register Description ............................................................................................282
27.1Program And Data Memory Lock Bits .................................................................284
27.2Fuse Bits ..............................................................................................................285
27.3Signature Bytes ...................................................................................................287
27.4Calibration Byte ...................................................................................................287
27.5Page Size ............................................................................................................288
27.6Parallel Programming Parameters, Pin Mapping, and Commands .....................288
27.7Parallel Programming ..........................................................................................290
27.8Serial Downloading ..............................................................................................297
28.1Absolute Maximum Ratings* ...............................................................................302
28.2DC Characteristics ...............................................................................................302
28.3Speed Grades .....................................................................................................304
28.4Clock Characteristics ...........................................................................................305
28.5System and Reset Characteristics ......................................................................306
28.62-wire Serial Interface Characteristics .................................................................307
28.7SPI Timing Characteristics ..................................................................................308
28.8ADC Characteristics ............................................................................................310
28.9Parallel Programming Characteristics .................................................................311
29.1Active Supply Current ..........................................................................................314
29.2Idle Supply Current ..............................................................................................317
29.3Supply Current of I/O modules ............................................................................320
29.4Power-Down Supply Current ...............................................................................322
29.5Power-Save Supply Current ................................................................................323
29.6Standby Supply Current ......................................................................................323
29.7Pin Pull-up ...........................................................................................................324
ATmega48/88/168
2545S–AVR–07/10
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