ATtiny48 Atmel Corporation, ATtiny48 Datasheet - Page 6

• 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

2.2
6
Comparison Between ATtiny48 and ATtiny88
ATtiny48/88
The ATtiny48/88 provides the following features:
The device includes the following modes for saving power:
The device is manufactured using Atmel’s high density non-volatile memory technology. The
On-chip ISP Flash allows the program memory to be reprogrammed In-System through an SPI
serial interface, by a conventional non-volatile memory programmer, or by an on-chip boot pro-
gram running on the AVR core. The boot program can use any interface to download the
application program in the Flash memory. By combining an 8-bit RISC CPU with In-System Self-
Programmable Flash on a monolithic chip, the Atmel ATtiny48/88 is a powerful microcontroller
that provides a highly flexible and cost effective solution to many embedded control applications.
The ATtiny48/88 AVR is supported by a full suite of program and system development tools
including: C compilers, macro assemblers, program debugger/simulators and evaluation kits.
The ATtiny48 and ATtiny88 differ only in memory sizes, as summarised in
Table 2-1.
Device
ATtiny48
ATtiny88
• 4/8K bytes of In-System Programmable Flash
• 64/64 bytes EEPROM
• 256/512 bytes SRAM
• 24 general purpose I/O lines
• 32 general purpose working registers
• Two flexible Timer/Counters with compare modes
• Internal and external interrupts
• A byte-oriented, 2-wire serial interface
• An SPI serial port
• A 6-channel, 10-bit ADC
• A programmable Watchdog Timer with internal oscillator
• Three software selectable power saving modes.
• Idle mode: stops the CPU while allowing the timer/counter, ADC, analog comparator, SPI,
• ADC Noise Reduction mode: minimizes switching noise during ADC conversions by stopping
• Power-down mode: registers keep their contents and all chip functions are disabled until the
TWI, and interrupt system to continue functioning
the CPU and all I/O modules except the ADC
next interrupt or hardware reset
– 28 in 32-lead TQFP, 32-pad QFN, and 32-ball UFBGA packages
– 8 in 32-lead TQFP, 32-pad QFN, and 32-ball UFBGA packages
Memory Size Summary
Flash
4K Bytes
8K Bytes
EEPROM
64 Bytes
64 Bytes
RAM
256 Bytes
512 Bytes
Table
2-1, below.
8008H–AVR–04/11