Accessible pinout for ATtiny28L-4P

Part description: 4MHz, 2kB Flash, No SRAM, No EEPROM, DIP-28

Package description: This package has two parallel rows of pins extending down from opposite edges of the chip.

There should be a semicircular notch that you can feel in the middle of one of the package's shorter bare edges. With the pins facing downward and the chip oriented so notch is on the side of the chip furthest from you, Pin 1 will be in the far left corner of the chip.

Pins are numbered counter-clockwise. Numbers increase from the far left corner to the near left corner. They then continue on the right side, increasing from the near right corner to the far right corner. Thus the highest number pin is to the right of pin 1.

Pin assignments

Left side (numbering starts at far end)

Pin Signals
1RESET (active low)
2PD0
3PD1
4PD2
5PD3
6PD4
7VCC
8GND
9XTAL1
10XTAL2
11PD5
12PD6
13PD7
14PB0

Right side (numbering starts at near end)

Pin Signals
15PB1
16PB2
17PB3
18PB4
19PB5
20VCC
21NC
22GND
23PB6
24PB7
25PA2
26PA3
27PA1
28PA0

This pinout was automatically generated from the KiCAD symbol library revision 164574.

It is possible that there may be a mistake in the source data leading to wrong information on this page.