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ATtiny28L-4A
4MHz, 2kB Flash, No SRAM, No EEPROM, TQFP-32
Schematic Symbol
Pin Configuration (32 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | PD3 | bidirectional |
| 2 | PD4 | bidirectional |
| 3 | NC | no_connect |
| 4 | VCC | power_in |
| 5 | GND | power_in |
| 6 | NC | no_connect |
| 7 | XTAL1 | input |
| 8 | XTAL2 | output |
| 9 | PD5 | bidirectional |
| 10 | PD6 | bidirectional |
| 11 | PD7 | bidirectional |
| 12 | PB0 | bidirectional |
| 13 | PB1 | bidirectional |
| 14 | PB2 | bidirectional |
| 15 | PB3 | bidirectional |
| 16 | PB4 | bidirectional |
| 17 | PB5 | bidirectional |
| 18 | VCC | passive |
| 19 | NC | no_connect |
| 20 | NC | no_connect |
| 21 | GND | passive |
| 22 | NC | no_connect |
| 23 | PB6 | bidirectional |
| 24 | PB7 | bidirectional |
| 25 | PA2 | bidirectional |
| 26 | PA3 | bidirectional |
| 27 | PA1 | bidirectional |
| 28 | PA0 | bidirectional |
| 29 | ~{RESET} | input |
| 30 | PD0 | bidirectional |
| 31 | PD1 | bidirectional |
| 32 | PD2 | bidirectional |
Footprint
ConfirmedPackage_QFP/TQFP-32_7x7mm_P0.8mm
Pad Layout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pads (32)
| Number | Type |
|---|---|
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |
| 21 | smd |
| 22 | smd |
| 23 | smd |
| 24 | smd |
| 25 | smd |
| 26 | smd |
| 27 | smd |
| 28 | smd |
| 29 | smd |
| 30 | smd |
| 31 | smd |
| 32 | smd |