ATmega48 Automotive Atmel Corporation, ATmega48 Automotive Datasheet - Page 3
ATmega48 Automotive
Manufacturer Part Number
ATmega48 Automotive
Description
Manufacturer
Atmel Corporation
Specifications of ATmega48 Automotive
Flash (kbytes)
4 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
256
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 125
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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2. Overview
2.1
7701E–AVR–02/11
Block Diagram
The Atmel
enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the
Atmel ATtiny24/44/84 achieves throughputs approaching 1MIPS per MHz allowing the system
designer to optimize power consumption versus processing speed.
Figure 2-1.
GND
VCC
®
ATtiny24/44/84 is a low-power CMOS 8-bit microcontroller based on the AVR
PROGRAMMING
Block Diagram
INSTRUCTION
PROGRAM
PROGRAM
REGISTER
INSTRUCTION
COUNTER
CONTROL
DECODER
FLASH
LINES
LOGIC
DATA REGISTER
PORT A
Atmel ATtiny24/44/84 [Preliminary]
PORT A DRIVERS
PA7-PA0
ISP INTERFACE
REGISTERS
POINTER
REGISTER
GENERAL
PURPOSE
STACK
STATUS
SRAM
ALU
X
Y
Z
REG.PORT A
DATA DIR.
8-BIT DATABUS
ADC
MCU CONTROL
MCU STATUS
OSCILLATOR
WATCHDOG
INTERRUPT
REGISTER
REGISTER
INTERNAL
COUNTER0
COUNTER1
EEPROM
TIMER/
TIMER/
DATA REGISTER
TIMER
UNIT
PORT B
PORT B DRIVERS
PB3-PB0
OSCILLATORS
CALIBRATED
OSCILLATOR
TIMING AND
REG.PORT B
INTERNAL
CONTROL
DATA DIR.
3
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