Skip to the content
PCBKitNew board
TM1621B on a board, in 3D

TM1621B

TM

-25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.2V 256kHz 32 Segment 32x4 bit 4-Wire Serial Interface 60uA SSOP-48-300mil LCD Drivers ROHS

Extended
DatasheetJLCPCBLCSCtm/TM1621B
Category
LCD Drivers
Package
LQFP-44(10x10)
Pins
48

Overview

The TM1621B is a LCD Driver made by TM in a LQFP-44(10x10) package with 48 pins. -25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.2V 256kHz 32 Segment 32x4 bit 4-Wire Serial Interface 60uA SSOP-48-300mil LCD Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TM1621B, from EasyEDA) and its footprint (EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BL, from EasyEDA), ready for a KiCad board. 10,610 are in stock at JLCPCB (part C5174490).

Symbol

SEG71SEG62SEG53SEG44SEG35SEG26SEG17SEG08CS#9RD#10WR#11DATA12VSS13OSCO14OSCI15VLCD16VDD17IRQ#18BZ19BZ#20COM021COM122COM223COM324SEG3125SEG3026SEG2927SEG2828SEG2729SEG2630SEG2531SEG2432SEG2333SEG2234SEG2135SEG2036SEG1937SEG1838SEG1739SEG1640SEG1541SEG1442SEG1343SEG1244SEG1145SEG1046SEG947SEC848
EasyEDA_Cloud:TM1621BFrom EasyEDA

Footprint

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748
EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BLFrom EasyEDA

Parameters

11
Bias
1/2,1/3
Current - Supply
60uA
Display Configurations(Segment)
32 Segment
Display Configurations(bit)
32x4 bit
Duty cycle
1/2,1/3,1/4
Features
Built-in oscillator
Frequency
256kHz
Interface
4-Wire Serial Interface
Operating Temperature
-25℃~+75℃
Quiescent Current
0.1uA
Voltage - Supply
2.4V~5.2V

Order codes

2

Pinout

48
The pins of the TM1621B
PinNameType
1SEG7Unspecified
2SEG6Unspecified
3SEG5Unspecified
4SEG4Unspecified
5SEG3Unspecified
6SEG2Unspecified
7SEG1Unspecified
8SEG0Unspecified
9CS#Unspecified
10RD#Unspecified
11WR#Unspecified
12DATAUnspecified
13VSSUnspecified
14OSCOUnspecified
15OSCIUnspecified
16VLCDUnspecified
17VDDUnspecified
18IRQ#Unspecified
19BZUnspecified
20BZ#Unspecified
21COM0Unspecified
22COM1Unspecified
23COM2Unspecified
24COM3Unspecified
25SEG31Unspecified
26SEG30Unspecified
27SEG29Unspecified
28SEG28Unspecified
29SEG27Unspecified
30SEG26Unspecified
31SEG25Unspecified
32SEG24Unspecified
33SEG23Unspecified
34SEG22Unspecified
35SEG21Unspecified
36SEG20Unspecified
37SEG19Unspecified
38SEG18Unspecified
39SEG17Unspecified
40SEG16Unspecified
41SEG15Unspecified
42SEG14Unspecified
43SEG13Unspecified
44SEG12Unspecified
45SEG11Unspecified
46SEG10Unspecified
47SEG9Unspecified
48SEC8Unspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/tm/TM1621B" title="TM1621B in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/tm/TM1621B.jpg" alt="TM1621B" width="1200" height="900">
A picture that opens the part, for a README
[![TM1621B](https://pcbkit.io/embed/parts/tm/TM1621B.jpg?size=s)](https://pcbkit.io/parts/tm/TM1621B)

Questions

Is there a KiCad symbol and footprint for the TM1621B?

Yes. The symbol is EasyEDA_Cloud:TM1621B and the footprint EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the TM1621B?

LQFP-44(10x10), with 48 pins. Its footprint is drawn on this page.

Where is the TM1621B datasheet?

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

Where can I order the TM1621B?

JLCPCB lists it as part C5174490, with 10,610 in stock; the sellers' links on this page open their listings.

What can replace the TM1621B?

Parts like it in the library: the GN1621 by GN Semic, the HG1621BM/TR by HGSEMI, the HK1621B by HK and the GN1621CB by GN Semic. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8