ATMEGA48-20MU Atmel, ATMEGA48-20MU Datasheet - Page 82

IC AVR MCU 4K 20MHZ 5V 32-QFN

ATMEGA48-20MU

Manufacturer Part Number
ATMEGA48-20MU
Description
IC AVR MCU 4K 20MHZ 5V 32-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA48-20MU

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-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
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
Controller Family/series
AVR MEGA
No. Of I/o's
23
Eeprom Memory Size
256Byte
Ram Memory Size
512Byte
Cpu Speed
20MHz
No. Of Timers
3
Rohs Compliant
Yes
Package
32MLF EP
Device Core
AVR
Family Name
ATmega
Maximum Speed
20 MHz
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIP770-1007 - 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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA48-20MU
Manufacturer:
ATMEL
Quantity:
18 000
82
ATmega48/88/168
PCINT9: Pin Change Interrupt source 9. The PC1 pin can serve as an external interrupt source.
• ADC0/PCINT8 – Port C, Bit 0
PC0 can also be used as ADC input Channel 0. Note that ADC input channel 0 uses analog
power.
PCINT8: Pin Change Interrupt source 8. The PC0 pin can serve as an external interrupt source.
Table 13-7
shown in
Table 13-7.
Note:
Table 13-8.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. When enabled, the 2-wire Serial Interface enables slew-rate controls on the output pins PC4
Figure 13-5 on page
PC6/RESET/PCINT14
RSTDISBL
1
RSTDISBL
0
0
0
RSTDISBL + PCINT14 •
PCIE1
RSTDISBL
PCINT14 INPUT
RESET INPUT
PC3/ADC3/
PCINT11
0
0
0
0
0
0
PCINT11 • PCIE1 +
ADC3D
PCINT11 • PCIE1
PCINT11 INPUT
ADC3 INPUT
and PC5. This is not shown in the figure. In addition, spike filters are connected between the
AIO outputs shown in the port figure and the digital logic of the TWI module.
and
Overriding Signals for Alternate Functions in PC6..PC4
Overriding Signals for Alternate Functions in PC3..PC0
Table 13-8
relate the alternate functions of Port C to the overriding signals
75.
PC2/ADC2/
PCINT10
0
0
0
0
0
0
PCINT10 • PCIE1 +
ADC2D
PCINT10 • PCIE1
PCINT10 INPUT
ADC2 INPUT
PC5/SCL/ADC5/PCINT13
TWEN
PORTC5 • PUD
TWEN
SCL_OUT
TWEN
0
PCINT13 • PCIE1 + ADC5D
PCINT13 • PCIE1
PCINT13 INPUT
ADC5 INPUT / SCL INPUT
PC1/ADC1/
PCINT9
0
0
0
0
0
0
PCINT9 • PCIE1 +
ADC1D
PCINT9 • PCIE1
PCINT9 INPUT
ADC1 INPUT
PC4/SDA/ADC4/PCINT12
TWEN
PORTC4 • PUD
TWEN
SDA_OUT
TWEN
0
PCINT12 • PCIE1 + ADC4D
PCINT12 • PCIE1
PCINT12 INPUT
ADC4 INPUT / SDA INPUT
(1)
PC0/ADC0/
PCINT8
0
0
0
0
0
0
PCINT8 • PCIE1 +
ADC0D
PCINT8 • PCIE1
PCINT8 INPUT
ADC0 INPUT
2545S–AVR–07/10

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