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ATMEGA48A-MU on a board, in 3D

ATMEGA48A-MU

Microchip Technology

-40℃~+85℃ 1.8V~5.5V 10bit 20MHz 23 256Byte 4KB 512Byte 8 Bit AVR Built-in FLASH VQFN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/ATMEGA48A-MU
Category
Microcontrollers (MCU, MPU, SOC)
Package
VQFN-32(5x5)
Pins
33

Overview

The ATMEGA48A-MU is a microcontroller made by Microchip Technology in a VQFN-32(5x5) package with 33 pins. -40℃~+85℃ 1.8V~5.5V 10bit 20MHz 23 256Byte 4KB 512Byte 8 Bit AVR Built-in FLASH VQFN-32(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega48A-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, from KiCad's library), ready for a KiCad board. 16 are in stock at JLCPCB (part C1337968). 4 open-source boards in 4 repositories on GitHub use it.

Symbol

PD31PD42GND3VCC4XTAL1/PB67XTAL2/PB78PD59PD610PD711PB012PB113PB214PB315PB416PB517AVCC18ADC619AREF20ADC722PC023PC124PC225PC326PC427PC528RESET/PC629PD030PD131PD232
MCU_Microchip_ATmega:ATmega48A-MFrom KiCad's library

Footprint

33
Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mmFrom KiCad's library

Parameters

17
ADC (Bit)
10bit
CPU Core
AVR
CPU Maximum Speed
20MHz
Core Size
8 Bit
EEPROM
256Byte
Features
Built-in general-purpose timer
Internal Oscillator
有
Low-Voltage Detect
有
Number of I/O
23
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Peripheral/Function
WDT
Program Memory Type
FLASH
Program Storage Size
4KB
RAM Size
512Byte
Voltage - Supply
1.8V~5.5V
Watchdog
有

Order codes

2

Pinout

33
The pins of the ATMEGA48A-MU
PinNameType
1PD3Input/output
2PD4Input/output
3GNDPower in
4VCCPower in
5GNDPassive
6VCCPassive
7XTAL1/PB6Input/output
8XTAL2/PB7Input/output
9PD5Input/output
10PD6Input/output
11PD7Input/output
12PB0Input/output
13PB1Input/output
14PB2Input/output
15PB3Input/output
16PB4Input/output
17PB5Input/output
18AVCCPower in
19ADC6Input
20AREFPassive
21GNDPassive
22ADC7Input
23PC0Input/output
24PC1Input/output
25PC2Input/output
26PC3Input/output
27PC4Input/output
28PC5Input/output
29RESET/PC6Input/output
30PD0Input/output
31PD1Input/output
32PD2Input/output
33GNDPassive

Open-source boards using it

All 4
  • 2 layers48.5 × 108 mmDredrum, the printed circuit board in 3D

    Dredrum

    buranelectrix/dredrum

    8-bit perc/drone generator for Eurorack systems

    59 parts20
  • 2 layers27.4 × 41.7 mmWatch, the printed circuit board in 3D

    Watch

    Miceuz/geek-watch

    My take on building a watch.

    23 parts1Apache-2.0
  • 2 layers19 × 15.9 mmSqueezem48a, the printed circuit board in 3D

    Squeezem48a

    cnlohr/squeezemega

    A really small footprint ATMegaX8 Design

    16 parts
  • 2 layers88.8 × 45.5 mmZulassungskarte, the printed circuit board in 3D

    Zulassungskarte

    stonedDiscord/Automatenplatinen

    Reverse engineerte Hardware aus deutschen Spielautomaten.

    41 parts5BSD-2-Clause

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Questions

Is there a KiCad symbol and footprint for the ATMEGA48A-MU?

Yes. The symbol is MCU_Microchip_ATmega:ATmega48A-M and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATMEGA48A-MU?

VQFN-32(5x5), with 33 pins. Its footprint is drawn on this page.

Where is the ATMEGA48A-MU datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the ATMEGA48A-MU?

JLCPCB lists it as part C1337968, with 16 in stock; the sellers' links on this page open their listings.

What can replace the ATMEGA48A-MU?

Parts like it in the library: the ATMEGA328P-MUR by Microchip Technology, the ATMEGA88PA-MU by Microchip Technology, the ATMEGA168PA-MU by Microchip Technology and the ATMEGA328PB-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ATMEGA48A-MU?

4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8