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ATTINY40-MMH

Microchip Technology

VQFN-20-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/ATTINY40-MMH
Category
Microcontrollers (MCU, MPU, SOC)
Package
VQFN-20
Pins
21

Overview

The ATTINY40-MMH is a microcontroller made by Microchip Technology in a VQFN-20 package with 21 pins. VQFN-20-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_ATtiny:ATtiny40-MM, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.45mm_EP1.6x1.6mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1338049).

Symbol

PA61PA52PA43PA34PA25PA16PA07GND8VCC9PC510PC411RESET/PC312PC213PC114PC015PB316PB217PB118PB019PA720
MCU_Microchip_ATtiny:ATtiny40-MMFrom KiCad's library

Footprint

21
Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.45mm_EP1.6x1.6mmFrom KiCad's library

Parameters

12
ADC (Bit)
10bit
CPU Core
AVR
CPU Maximum Speed
12MHz
Core Size
8 Bit
Features
Power-on reset (POR), Undervoltage detection (BOR/LVD/LVR/LVI), Watchdog reset, External pin reset (NRST), Built-in general-purpose timer, Programmable watchdog
Number of I/O
18
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Program Memory Type
FLASH
Program Storage Size
4KB
RAM Size
256Byte
Voltage - Supply
1.8V~5.5V

Order codes

2

Pinout

21
The pins of the ATTINY40-MMH
PinNameType
1PA6Input/output
2PA5Input/output
3PA4Input/output
4PA3Input/output
5PA2Input/output
6PA1Input/output
7PA0Input/output
8GNDPower in
9VCCPower in
10PC5Input/output
11PC4Input/output
12RESET/PC3Input/output
13PC2Input/output
14PC1Input/output
15PC0Input/output
16PB3Input/output
17PB2Input/output
18PB1Input/output
19PB0Input/output
20PA7Input/output
21GNDPassive

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Questions

Is there a KiCad symbol and footprint for the ATTINY40-MMH?

Yes. The symbol is MCU_Microchip_ATtiny:ATtiny40-MM and the footprint Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.45mm_EP1.6x1.6mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATTINY40-MMH?

VQFN-20, with 21 pins. Its footprint is drawn on this page.

Where is the ATTINY40-MMH datasheet?

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

Where can I order the ATTINY40-MMH?

JLCPCB lists it as part C1338049, with 0 in stock; the sellers' links on this page open their listings.

What can replace the ATTINY40-MMH?

Parts like it in the library: the ATTINY44A-MMH by Microchip Technology, the ATTINY40-MMHR by Microchip Technology, the ATTINY841-MMH by Microchip Technology and the ATTINY441-MMH by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

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