
Overview
The ATMEGA1284P-MU is a microcontroller made by Microchip Technology in a VQFN-44-EP(7x7) package with 45 pins. -40℃~+85℃ 1.8V~5.5V 10bit 128KB 16KB 20MHz 32 4KB 8 Bit AVR Built-in FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega1284P-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm, from KiCad's library), ready for a KiCad board. 4 are in stock at JLCPCB (part C1337217). 11 open-source boards in 6 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
9- Supply, least
- 1.8 V · VCC, recommended operating, min · p. 331
- Supply, most
- 5.5 V · VCC, recommended operating, max · p. 331
- Supply, absolute maximum
- 6 V · VCC, absolute maximum · p. 326
- Works from
- -40 °C · ambient operating, min · p. 331
- Works up to
- 85 °C · ambient operating, max · p. 331
- A pin gives at most
- 40 mA · per I/O pin, absolute maximum · p. 326
- Takes working
- 5.6 mA · active 8 MHz, VCC = 5 V, PRR0 bits all set, 25°C, typical · p. 331
- Takes at most
- 9 mA · active 8 MHz, VCC = 5 V, PRR0 bits all set, max · p. 331
- Takes asleep
- 150 nA · power-down, WDT disabled, VCC = 3 V, 25°C, typical · p. 331
Parameters
18- ADC (Bit)
- 10bit
- CPU Core
- AVR
- CPU Maximum Speed
- 20MHz
- Core Size
- 8 Bit
- Current - Supply
- 5.6mA
- Current - Supply(Max)
- 9mA
- EEPROM
- 4KB
- Features
- Undervoltage detection (BOR/LVD/LVR/LVI)
- Number of I/O
- 32
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Output Current per Pin(Max)
- 40mA
- Program Memory Type
- FLASH
- Program Storage Size
- 128KB
- RAM Size
- 16KB
- Standby Current
- 150nA
- Voltage - Supply
- 1.8V~5.5V
- Voltage - Supply(Absolute Max)
- 6V
Order codes
1- ATMEGA1284P-MULCSC C1337217
Pinout
45| Pin | Name | Type |
|---|---|---|
| 1 | PB5 | Input/output |
| 2 | PB6 | Input/output |
| 3 | PB7 | Input/output |
| 4 | RESET | Input |
| 5 | VCC | Power in |
| 6 | GND | Power in |
| 7 | XTAL2 | Output |
| 8 | XTAL1 | Input |
| 9 | PD0 | Input/output |
| 10 | PD1 | Input/output |
| 11 | PD2 | Input/output |
| 12 | PD3 | Input/output |
| 13 | PD4 | Input/output |
| 14 | PD5 | Input/output |
| 15 | PD6 | Input/output |
| 16 | PD7 | Input/output |
| 17 | VCC | Passive |
| 18 | GND | Passive |
| 19 | PC0 | Input/output |
| 20 | PC1 | Input/output |
| 21 | PC2 | Input/output |
| 22 | PC3 | Input/output |
| 23 | PC4 | Input/output |
| 24 | PC5 | Input/output |
| 25 | PC6 | Input/output |
| 26 | PC7 | Input/output |
| 27 | AVCC | Power in |
| 28 | GND | Passive |
| 29 | AREF | Passive |
| 30 | PA7 | Input/output |
| 31 | PA6 | Input/output |
| 32 | PA5 | Input/output |
| 33 | PA4 | Input/output |
| 34 | PA3 | Input/output |
| 35 | PA2 | Input/output |
| 36 | PA1 | Input/output |
| 37 | PA0 | Input/output |
| 38 | VCC | Passive |
| 39 | GND | Passive |
| 40 | PB0 | Input/output |
| 41 | PB1 | Input/output |
| 42 | PB2 | Input/output |
| 43 | PB3 | Input/output |
| 44 | PB4 | Input/output |
| 45 | GND | Passive |
Open-source boards using it
All 11- 2 layers85.3 × 35.3 mm

- 2 layers18.5 × 33.3 mm

Arduino Pro Mini XL
michpro/Arduino_Pro_Mini_XL
ATmega1284P uC module in Arduino Pro Mini format
21 partsCERN-OHL-P-2.0 - 2 layers88.3 × 129 mm

- 2 layers61 × 20.5 mm

SirMighty
vul-os/sirboard
Open hardware: 107 KiCad PCB designs — SMD-to-THT breakout adapters, ATTiny/ATMega/ESP development boards, and a 39-part sensor line on a common JST-SH connector.
50 parts56Apache-2.0 - 4 layers30 × 181.5 mm

Vm010-channelcontrol
mirdej/vmix
Multichannel modular analog PAL video mixer based on the SYNKIE project
64 parts21 - 2 layers55.9 × 40 mm

DepthSensorBoard
palouse-robosub/pcbs-2018
This repository contains all of the custom PCB designs for the Palouse Robosub Electrical Engineering Team.
34 parts - 2 layers66.5 × 44.4 mm

DepthSensorBoard
palouse-robosub/pcbs-2018
This repository contains all of the custom PCB designs for the Palouse Robosub Electrical Engineering Team.
47 parts - 2 layers46.5 × 31.2 mm

Led controller
palouse-robosub/pcbs-2018
This repository contains all of the custom PCB designs for the Palouse Robosub Electrical Engineering Team.
26 parts
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<iframe src="https://pcbkit.io/embed/parts/microchip/ATMEGA1284P-MU" title="ATMEGA1284P-MU 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/ATMEGA1284P-MU.jpg" alt="ATMEGA1284P-MU" width="1200" height="900">[](https://pcbkit.io/parts/microchip/ATMEGA1284P-MU)Questions
Is there a KiCad symbol and footprint for the ATMEGA1284P-MU?
Yes. The symbol is MCU_Microchip_ATmega:ATmega1284P-M and the footprint Package_DFN_QFN:QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATMEGA1284P-MU?
VQFN-44-EP(7x7), with 45 pins. Its footprint is drawn on this page.
Where is the ATMEGA1284P-MU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATMEGA1284P-MU?
JLCPCB lists it as part C1337217, with 4 in stock; the sellers' links on this page open their listings.
What can replace the ATMEGA1284P-MU?
Parts like it in the library: the ATMEGA324A-MU by Microchip Technology, the ATMEGA324PA-MU by Microchip Technology, the ATXMEGA32A4U-MH by Microchip Technology and the ATXMEGA64D4-MH by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATMEGA1284P-MU?
11 boards in 6 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
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