ATtiny48 Atmel Corporation, ATtiny48 Datasheet - Page 297

• Manufacturer Part Number: ATtiny48
• Manufacturer: Atmel Corporation

Specifications of ATtiny48

• Flash (kbytes): 4 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

8008H–AVR–04/11
13 Timer/Counter0 and Timer/Counter1 Prescalers .............................. 117
14 SPI – Serial Peripheral Interface ......................................................... 120
15 TWI – Two Wire Interface .................................................................... 129
16 Analog Comparator ............................................................................. 161
12.3
12.4
12.5
12.6
12.7
12.8
12.9
12.10
12.11
13.1
13.2
13.3
13.4
14.1
14.2
14.3
14.4
14.5
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
15.10
15.11
16.1
16.2
Accessing 16-bit Registers ..............................................................................91
Timer/Counter Clock Sources .........................................................................93
Counter Unit ....................................................................................................94
Input Capture Unit ...........................................................................................95
Output Compare Units .....................................................................................97
Compare Match Output Unit ............................................................................99
Modes of Operation .......................................................................................100
Timer/Counter Timing Diagrams ...................................................................107
Register Description ......................................................................................110
Internal Clock Source ....................................................................................117
Prescaler Reset .............................................................................................117
External Clock Source ...................................................................................117
Register Description ......................................................................................118
Features ........................................................................................................120
Overview ........................................................................................................120
SS Pin Functionality ......................................................................................124
Data Modes ...................................................................................................125
Register Description ......................................................................................126
Features ........................................................................................................129
Overview ........................................................................................................129
Bus Definitions ...............................................................................................129
Data Transfer and Frame Format ..................................................................130
Multi-master Bus Systems, Arbitration and Synchronization .........................133
Overview of the TWI Module .........................................................................135
Using the TWI ................................................................................................137
Transmission Modes .....................................................................................140
Multi-master Systems and Arbitration ............................................................154
Compatibility with SMBus ..............................................................................156
Register Description ......................................................................................156
Analog Comparator Multiplexed Input ...........................................................161
Register Description ......................................................................................162
ATtiny48/88
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