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BL55070 on a board, in 3D

BL55070

BL

-40℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 16uA 2.5V~5.5V 31kHz、180kHz 35 segments 35x4 bit Built-in oscillator、Integrated boost circuit I²C LQFP-44(10x10) LCD Drivers ROHS

Extended
DatasheetJLCPCBLCSCbl/BL55070
Category
LCD Drivers
Package
LQFP-44(10x10)
Pins
44

Overview

The BL55070 is a LCD Driver made by BL in a LQFP-44(10x10) package with 44 pins. -40℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 16uA 2.5V~5.5V 31kHz、180kHz 35 segments 35x4 bit Built-in oscillator、Integrated boost circuit I²C LQFP-44(10x10) LCD Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:BL55070, from EasyEDA) and its footprint (Package_QFP:LQFP-44_10x10mm_P0.8mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C692273).

Symbol

S271S282S293S304S315S326S337S348SDA9SCL10VDD11VSS12VLCD13C014C215C116C317S018S119S220S321S422S523S624S725S826S927S1028S1129S1230S1331S1432S1533S1634S1735S1836S1937S2038S2139S2240S2341S2442S2543S2644
EasyEDA_Cloud:BL55070From EasyEDA

Footprint

1234567891011121314151617181920212223242526272829303132333435363738394041424344
Package_QFP:LQFP-44_10x10mm_P0.8mmFrom KiCad's library

Parameters

11
Bias
1/3,1/2
Current - Supply
16uA
Display Configurations(Segment)
35 segments
Display Configurations(bit)
35x4 bit
Duty cycle
1/4,1/3,1/2
Features
Built-in oscillator, Integrated boost circuit
Frequency
180kHz, 31kHz
Interface
I²C
Operating Temperature
-40℃~+75℃
Quiescent Current
0.1uA
Voltage - Supply
2.5V~5.5V

Order codes

1

Pinout

44
The pins of the BL55070
PinNameType
1S27Unspecified
2S28Unspecified
3S29Unspecified
4S30Unspecified
5S31Unspecified
6S32Unspecified
7S33Unspecified
8S34Unspecified
9SDAUnspecified
10SCLUnspecified
11VDDUnspecified
12VSSUnspecified
13VLCDUnspecified
14C0Unspecified
15C2Unspecified
16C1Unspecified
17C3Unspecified
18S0Unspecified
19S1Unspecified
20S2Unspecified
21S3Unspecified
22S4Unspecified
23S5Unspecified
24S6Unspecified
25S7Unspecified
26S8Unspecified
27S9Unspecified
28S10Unspecified
29S11Unspecified
30S12Unspecified
31S13Unspecified
32S14Unspecified
33S15Unspecified
34S16Unspecified
35S17Unspecified
36S18Unspecified
37S19Unspecified
38S20Unspecified
39S21Unspecified
40S22Unspecified
41S23Unspecified
42S24Unspecified
43S25Unspecified
44S26Unspecified

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A picture
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A picture that opens the part, for a README
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Questions

Is there a KiCad symbol and footprint for the BL55070?

Yes. The symbol is EasyEDA_Cloud:BL55070 and the footprint Package_QFP:LQFP-44_10x10mm_P0.8mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BL55070?

LQFP-44(10x10), with 44 pins. Its footprint is drawn on this page.

Where is the BL55070 datasheet?

BL publishes it: the Datasheet link on this page opens it.

Where can I order the BL55070?

JLCPCB lists it as part C692273, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BL55070?

Parts like it in the library: the HG1622B-LQ44 by HGSEMI, the HT1621BRQZ44 by HTCSEMI, the HT1621BDQ by HGSEMI and the GN1621A by GN Semic. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8