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AT89LP51-20MU on a board, in 3D

AT89LP51-20MU

Microchip Technology

VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/AT89LP51-20MU
Category
Microcontrollers (MCU, MPU, SOC)
Package
VQFN-44
Pins
45

Overview

The AT89LP51-20MU is a microcontroller made by Microchip Technology in a VQFN-44 package with 45 pins. VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AT89LP51-20MU_C618126, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1341464).

Symbol

MOSI/P1.51MISO/P1.62SCK/P1.73RST4RXD/P3.05*NC6TXD/P3.17INT0#/P3.28INT1#/P3.39T0/P3.410T1/P3.511WR/P3.612RD/P3.713XTAL2/P4.714XTAL1/P4.615GND16*NC17A8/P2.018A9/P2.119A10/P2.220A11/P2.321A12/P2.422P2.5/A1323P2.6/A1424P2.7/A1525P4.5/PSEN#26P4.4/ALE27*NC28POL29P0.7/AD730P0.6/AD631P0.5/AD532P0.4/AD433P0.3/AD334P0.2/AD235P0.1/AD136P0.0/AD037VDD38*NC39P1.0/T240P1.1/T2EX41P1.242P1.343P1.444EP45
EasyEDA_Cloud:AT89LP51-20MU_C618126From EasyEDA

Footprint

45
EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2From EasyEDA

Parameters

7
CPU Core
51 Series
CPU Maximum Speed
20MHz
Features
Power-on reset (POR), Undervoltage detection (BOR/LVD/LVR/LVI), Watchdog reset, Software reset, External pin reset (NRST), Built-in general-purpose timer, Programmable watchdog
Number of I/O
36
Program Memory Type
FLASH
Program Storage Size
4KB
Voltage - Supply
2.4V~5.5V

Order codes

2

Pinout

45
The pins of the AT89LP51-20MU
PinNameType
1MOSI/P1.5Unspecified
2MISO/P1.6Unspecified
3SCK/P1.7Unspecified
4RSTUnspecified
5RXD/P3.0Unspecified
6*NCUnspecified
7TXD/P3.1Unspecified
8INT0#/P3.2Unspecified
9INT1#/P3.3Unspecified
10T0/P3.4Unspecified
11T1/P3.5Unspecified
12WR/P3.6Unspecified
13RD/P3.7Unspecified
14XTAL2/P4.7Unspecified
15XTAL1/P4.6Unspecified
16GNDUnspecified
17*NCUnspecified
18A8/P2.0Unspecified
19A9/P2.1Unspecified
20A10/P2.2Unspecified
21A11/P2.3Unspecified
22A12/P2.4Unspecified
23P2.5/A13Unspecified
24P2.6/A14Unspecified
25P2.7/A15Unspecified
26P4.5/PSEN#Unspecified
27P4.4/ALEUnspecified
28*NCUnspecified
29POLUnspecified
30P0.7/AD7Unspecified
31P0.6/AD6Unspecified
32P0.5/AD5Unspecified
33P0.4/AD4Unspecified
34P0.3/AD3Unspecified
35P0.2/AD2Unspecified
36P0.1/AD1Unspecified
37P0.0/AD0Unspecified
38VDDUnspecified
39*NCUnspecified
40P1.0/T2Unspecified
41P1.1/T2EXUnspecified
42P1.2Unspecified
43P1.3Unspecified
44P1.4Unspecified
45EPUnspecified

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Questions

Is there a KiCad symbol and footprint for the AT89LP51-20MU?

Yes. The symbol is EasyEDA_Cloud:AT89LP51-20MU_C618126 and the footprint EasyEDA_Cloud:QFN-44_L7.0-W7.0-P0.50-BL-EP5.2, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the AT89LP51-20MU?

VQFN-44, with 45 pins. Its footprint is drawn on this page.

Where is the AT89LP51-20MU datasheet?

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

Where can I order the AT89LP51-20MU?

JLCPCB lists it as part C1341464, with 0 in stock; the sellers' links on this page open their listings.

What can replace the AT89LP51-20MU?

Parts like it in the library: the ATXMEGA16A4-MH by Microchip Technology, the AT89LP51IC2-20MU by Microchip Technology, the AT89LP51RB2-20MU by Microchip Technology and the AT89LP52-20MU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8