The high-performance, low-power Atmel 8-bit AVR RISC-based microcontroller combines 4KB ISP flash memory, 256B SRAM, 12 general purpose I/O lines, 16 general purpose working registers, an 8-bit timer/counter with two PWM channels, a 8/16-bit timer/counter, internal and external interrupts, an 8-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator, a slave two-wire interface, a master/slave serial peripheral interface, an internal calibrated oscillator, and four software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Key Parameters

Parameter
Value

Flash (Kbytes):

4 Kbytes

Pin Count:

20

Max. Operating Frequency:

12 MHz

CPU:

8-bit AVR

# of Touch Channels:

12

Hardware QTouch Acquisition:

Yes

Max I/O Pins:

18

Ext Interrupts:

18

USB Transceiver:

0

Quadrature Decoder Channels:

0

 

Ordering Codes

Ordering Code Package Speed Power Supply Operational Range Comment
ATTINY40-SU SOIC (150mil) 14S1 14 12 1.8-5.5 Industrial (A) (-40°C to 85°C)
ATTINY40-SUR SOIC (150mil) 14S1 14 12 1.8-5.5 Industrial (A) (-40°C to 85°C)
ATTINY40-XU TSSOP 20X 20 12 1.8-5.5 Industrial (A) (-40°C to 85°C)
ATTINY40-XUR TSSOP 20X 20 12 1.8-5.5 Industrial (A) (-40°C to 85°C)
ATTINY40-MMH VQFN 20M2 20 12 1.8-5.5 Industrial (A) (-40°C to 85°C)
ATTINY40-MMHR VQFN 20M2 20 12 1.8-5.5 Industrial (A) (-40°C to 85°C)