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AT89LP51RB2-20MU on a board, in 3D

AT89LP51RB2-20MU

Microchip Technology

10bit 2.4V~5.5V 20MHz 24KB 40 51 Family FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/AT89LP51RB2-20MU
Category
Microcontrollers (MCU, MPU, SOC)
Package
VQFN-44-EP(7x7)
Pins
45

Overview

The AT89LP51RB2-20MU is a microcontroller made by Microchip Technology in a VQFN-44-EP(7x7) package with 45 pins. 10bit 2.4V~5.5V 20MHz 24KB 40 51 Family FLASH VQFN-44-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AT89LP51IC2-20MU, 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 C618130).

Symbol

(†MOSI/CEX2/MISO)P1.51(†MISO/CEX3/SCK)P1.62(†SCK/CEX4/MOSI)P1.73(DCL)RST4(RXD)P3.05(SDA)P4.16(TXD)P3.17(INT0#)P3.28(INT1#)P3.39(T0)P3.410(T1)P3.511(WR#)P3.612(RD#)P3.713(XTAL2A)P4.714(XTAL1A)P4.615VSS16(DDA)P4.317(A8)P2.018(A9)P2.119(DAC-/A10)P2.220(DAC+/A11)P2.321(AIN0/A12)P2.422P2.5(A13/AIN1)23P2.6(A14/AIN2)24P2.7(A15/AIN3)25P4.5(PSEN#)26P4.4(ALE)27P4.0(SCL)28POL29P0.7(AD7)30P0.6(AD6)31P0.5(AD5)32P0.4(AD4)33P0.3(AD3)34P0.2(AD2)35P0.1(AD1)36P0.0(AD0)37VCC38P4.2(XTAL2B‡)39P1.0(T2/XTAL1B‡)40P1.1(T2EX/SS#)41P1.2(ECI)42P1.3(CEX0)43P1.4(CEX1/SS†#)44EP45
EasyEDA_Cloud:AT89LP51IC2-20MUFrom EasyEDA

Footprint

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

Parameters

8
ADC (Bit)
10bit
CPU Core
51 Series
CPU Maximum Speed
20MHz
Features
Power-on reset (POR), Undervoltage detection (BOR/LVD/LVR/LVI), Software reset, External pin reset (NRST), Built-in general-purpose timer, Programmable watchdog
Number of I/O
40
Program Memory Type
FLASH
Program Storage Size
24KB
Voltage - Supply
2.4V~5.5V

Order codes

1

Pinout

45
The pins of the AT89LP51RB2-20MU
PinNameType
1(†MOSI/CEX2/MISO)P1.5Unspecified
2(†MISO/CEX3/SCK)P1.6Unspecified
3(†SCK/CEX4/MOSI)P1.7Unspecified
4(DCL)RSTUnspecified
5(RXD)P3.0Unspecified
6(SDA)P4.1Unspecified
7(TXD)P3.1Unspecified
8(INT0#)P3.2Unspecified
9(INT1#)P3.3Unspecified
10(T0)P3.4Unspecified
11(T1)P3.5Unspecified
12(WR#)P3.6Unspecified
13(RD#)P3.7Unspecified
14(XTAL2A)P4.7Unspecified
15(XTAL1A)P4.6Unspecified
16VSSUnspecified
17(DDA)P4.3Unspecified
18(A8)P2.0Unspecified
19(A9)P2.1Unspecified
20(DAC-/A10)P2.2Unspecified
21(DAC+/A11)P2.3Unspecified
22(AIN0/A12)P2.4Unspecified
23P2.5(A13/AIN1)Unspecified
24P2.6(A14/AIN2)Unspecified
25P2.7(A15/AIN3)Unspecified
26P4.5(PSEN#)Unspecified
27P4.4(ALE)Unspecified
28P4.0(SCL)Unspecified
29POLUnspecified
30P0.7(AD7)Unspecified
31P0.6(AD6)Unspecified
32P0.5(AD5)Unspecified
33P0.4(AD4)Unspecified
34P0.3(AD3)Unspecified
35P0.2(AD2)Unspecified
36P0.1(AD1)Unspecified
37P0.0(AD0)Unspecified
38VCCUnspecified
39P4.2(XTAL2B‡)Unspecified
40P1.0(T2/XTAL1B‡)Unspecified
41P1.1(T2EX/SS#)Unspecified
42P1.2(ECI)Unspecified
43P1.3(CEX0)Unspecified
44P1.4(CEX1/SS†#)Unspecified
45EPUnspecified

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Questions

Is there a KiCad symbol and footprint for the AT89LP51RB2-20MU?

Yes. The symbol is EasyEDA_Cloud:AT89LP51IC2-20MU 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 AT89LP51RB2-20MU?

VQFN-44-EP(7x7), with 45 pins. Its footprint is drawn on this page.

Where is the AT89LP51RB2-20MU datasheet?

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

Where can I order the AT89LP51RB2-20MU?

JLCPCB lists it as part C618130, with 0 in stock; the sellers' links on this page open their listings.

What can replace the AT89LP51RB2-20MU?

Parts like it in the library: the ATXMEGA16A4-MH by Microchip Technology, the AT89LP51IC2-20MU by Microchip Technology, the AT89LP52-20MU by Microchip Technology and the AT89LP6440-20MU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

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