ATtiny28L

General package info
pin TQFP	32
pin lead MLF	_
pin PDIP	28
Port	_

memory
Flash Memory	2 kB
EEPROM Data Memory	_
SRAM Data Memory	_
General Purpose Registers (Accumulators)	32
External data memory interface (64kB)	_

MCU Specific
Clock Frequency	0-4 MHz
Supply Voltage	2.7 - 5.5 V
Sleep Modes	2
Hardware Multiplier	_
I/O Pins	11
On Chip Oscillator	Yes
Interrupts	5
Interrupts, External pins	2
Interrupt or Wake-up on Pin Change	_
Brown-out Detection	_
High-Current pin with programmable Modulation	yes
Power-on Reset	yes
Fully Static Operation	yes
DebugWIRE On-chip debug system	_
On-Chip Debug support via JTAG port	_
IEEE 1149.1 (JTAG) Boundary Scan	_

Timers / Counters
Timer/Counters (8-bit)	1
Watchdog Timer with On-chip Oscillator	yes
Real Time Counter	_
Timer/Counters (16-bit)	_
Pulse Width Modulator	_

Analog I/O
Analog Comparator	yes
Analog-to-Digital Converter (10-bit)	_
Analog Gain Stage	_

Programming Modes
In-System Programming via SPI Port	_
High Voltage Parallel Programming (12V)	yes
Self-Programming via on-chip Boot Program	_
In-System Programming via JTAG port	_

Serial I/O
Full Duplex Serial Peripheral Interface (SPI)	_
2-wire Serial Interface (I2C compatible)	_
Full Duplex USART	_
Universal Serial Interface	_
Self-Programming	_
Read-While-Write Flash memory	_

Fuses
EEPROM preserved through chip erase	_
Divide external clock by 8	_
Reset disabled for IO usage	_
Debug Wire Enable	_
SPM Enable	_