

Overview
The AT90USB1287-AU is a microcontroller made by Microchip Technology in a LQFP-64(14x14) package with 64 pins. -40℃~+85℃ 128KB 16MHz 2.7V~5.5V 48 4KB 8 Bit 8KB AVR Built-in FLASH LQFP-64(14x14) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_AVR:AT90USB1287-A, from KiCad's library) and its footprint (Package_QFP:LQFP-64_14x14mm_P0.8mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1337397). 9 open-source boards in 6 repositories on GitHub use it.
Symbol
Footprint
Parameters
12- CPU Core
- AVR
- CPU Maximum Speed
- 16MHz
- Core Size
- 8 Bit
- EEPROM
- 4KB
- Features
- Power-on reset (POR), Undervoltage detection (BOR/LVD/LVR/LVI), Watchdog reset, Built-in general-purpose timer, Programmable watchdog
- Number of I/O
- 48
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Program Memory Type
- FLASH
- Program Storage Size
- 128KB
- RAM Size
- 8KB
- Voltage - Supply
- 2.7V~5.5V
Order codes
2- AT90USB1287-AULCSC C1337397
- AT90USB1287-AULCSC C619148
Pinout
64| Pin | Name | Type |
|---|---|---|
| 1 | PE6 | Input/output |
| 2 | PE7 | Input/output |
| 3 | UVCC | Power in |
| 4 | D- | Input/output |
| 5 | D+ | Input/output |
| 6 | UGND | Power in |
| 7 | UCAP | Passive |
| 8 | VBUS | Input |
| 9 | PE3 | Input/output |
| 10 | PB0 | Input/output |
| 11 | PB1 | Input/output |
| 12 | PB2 | Input/output |
| 13 | PB3 | Input/output |
| 14 | PB4 | Input/output |
| 15 | PB5 | Input/output |
| 16 | PB6 | Input/output |
| 17 | PB7 | Input/output |
| 18 | PE4 | Input/output |
| 19 | PE5 | Input/output |
| 20 | RESET | Input |
| 21 | VCC | Power in |
| 22 | GND | Power in |
| 23 | XTAL2 | Output |
| 24 | XTAL1 | Input |
| 25 | PD0 | Input/output |
| 26 | PD1 | Input/output |
| 27 | PD2 | Input/output |
| 28 | PD3 | Input/output |
| 29 | PD4 | Input/output |
| 30 | PD5 | Input/output |
| 31 | PD6 | Input/output |
| 32 | PD7 | Input/output |
| 33 | PE0 | Input/output |
| 34 | PE1 | Input/output |
| 35 | PC0 | Input/output |
| 36 | PC1 | Input/output |
| 37 | PC2 | Input/output |
| 38 | PC3 | Input/output |
| 39 | PC4 | Input/output |
| 40 | PC5 | Input/output |
| 41 | PC6 | Input/output |
| 42 | PC7 | Input/output |
| 43 | PE2/HWB | Input/output |
| 44 | PA7 | Input/output |
| 45 | PA6 | Input/output |
| 46 | PA5 | Input/output |
| 47 | PA4 | Input/output |
| 48 | PA3 | Input/output |
| 49 | PA2 | Input/output |
| 50 | PA1 | Input/output |
| 51 | PA0 | Input/output |
| 52 | VCC | Passive |
| 53 | GND | Passive |
| 54 | PF7 | Input/output |
| 55 | PF6 | Input/output |
| 56 | PF5 | Input/output |
| 57 | PF4 | Input/output |
| 58 | PF3 | Input/output |
| 59 | PF2 | Input/output |
| 60 | PF1 | Input/output |
| 61 | PF0 | Input/output |
| 62 | AREF | Passive |
| 63 | GND | Passive |
| 64 | AVCC | Power in |
Open-source boards using it
All 9- 2 layers52.3 × 42.2 mm

- 2 layers447.8 × 139.3 mm

- 2 layers65.5 × 50.8 mm

BeebSCSI
Domesday86/BeebSCSI
SCSI-1 Emulator for 8-bit Acorn computers such as the BBC Master and BBC Model B
60 parts29 - 2 layers101.6 × 76.1 mm

- 2 layers140.3 × 51.9 mm

Xirtam
hanshuebner/xirtam
MOVED to code.netzhansa.com/hanshuebner/xirtam. This GitHub mirror is archived.
29 parts - 2 layers169.6 × 39.5 mm

- 2 layers100 × 100 mm

- 2 layers100 × 100 mm

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<iframe src="https://pcbkit.io/embed/parts/microchip/AT90USB1287-AU" title="AT90USB1287-AU in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/AT90USB1287-AU.jpg" alt="AT90USB1287-AU" width="1200" height="900">[](https://pcbkit.io/parts/microchip/AT90USB1287-AU)Questions
Is there a KiCad symbol and footprint for the AT90USB1287-AU?
Yes. The symbol is MCU_Microchip_AVR:AT90USB1287-A and the footprint Package_QFP:LQFP-64_14x14mm_P0.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AT90USB1287-AU?
LQFP-64(14x14), with 64 pins. Its footprint is drawn on this page.
Where is the AT90USB1287-AU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the AT90USB1287-AU?
JLCPCB lists it as part C1337397, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AT90USB1287-AU?
Parts like it in the library: the AT90CAN128-16AU by Microchip Technology, the R5F212A8SNFA#V2 by Renesas Electronics, the ATMEGA128A-AN by Microchip Technology and the MC9S08AC60CFUE by NXP Semiconductors. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the AT90USB1287-AU?
9 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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