ATMEGA48-20PU Atmel, ATMEGA48-20PU Datasheet - Page 367

• Manufacturer Part Number: ATMEGA48-20PU
• Description: IC AVR MCU 4K 20MHZ 5V 28DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

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

36.15 Rev. 2545F-05/05
36.16 Rev. 2545E-02/05
36.17 Rev. 2545D-07/04
2545T–AVR–05/11
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Updated rev. A in
Added rev. C and D in
Table notes in
Updated instructions used with WDTCSR in relevant code examples.
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Updated note in
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Updated Features in
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MLF-package alternative changed to “Quad Flat No-Lead/Micro Lead Frame Package
QFN/MLF”.
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267.
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page
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and
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Table 28-16 on page 300
Table 27-11 on page
361.
Table 29-1 on page
Section 3. “Resources” on page 8
“Pin change interrupt timing” on page 66
Section 9.6 “Calibrated internal RC oscillator” on page
“UCSRnA – USART MSPIM control and status register n A” on page
“Bit 6 – ACBG: Analog comparator bandgap select” on page
“Prescaling and conversion timing” on page
“Limitations of debugWIRE” on page
Figure 16-7 on page
Section 28.8.3 “Serial programming instruction set” on page
Section 35. “Errata” on page
“EECR – The EEPROM control register” on page
“Calibrated internal RC oscillator” on page
“External clock” on page
“8-bit timer/counter block diagram.” on page
“Enter programming mode” on page
“DC characteristics” on page
“Ordering information” on page
“System clock prescaler” on page
Table 29-3 on page
“Errata Atmel ATmega88” on page 360
Table 9-5 on page
“SPMCSR – Store program memory control and status register” on page
Section 29.2 “DC characteristics” on page 303
“Bit rate generator unit” on page
“Errata Atmel ATmega48” on page
“Analog-to-digital converter” on page
“Errata Atmel ATmega48” on page
283.
306.
31,
307,
122,
Table 29-4 on page
35.
Table 29-6 on page
Figure 30-45 on page
357.
303.
350.
36.
291.
261.
216.
and
33.
ATmega48/88/168
247.
357.
90.
307,
“Errata Atmel ATmega168” on
309,
339.
357.
244.
22.
Table 27-9 on page
Table 29-2 on page 306
updated.
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300.
242.
206.
282,
367