2 layers51 × 43 mm
Egg timer
MakersFunDuck/Common-Kitchen-Timer-With-LCD-Replacement-Board
A replacement PCB board for common 4 digit 7 segment LCD kitchen timers.
25 parts13GPL-3.0
TM1621D
TMExtended
-25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 14 segments 14x4 bit 2.4V~5.2V 256kHz 3-Wire Serial Interface 60uA SOIC-24-300mil LCD Drivers ROHS
- Part id
- tm/TM1621D
- Category
- LCD Drivers
- Package
- SOIC-24-300mil
- Pins
- 24
- In stock
- 6 at JLCPCB (C79896)
- Used on
- 2 open-source boards
Overview
The TM1621D is a LCD Driver made by TM in a SOIC-24-300mil package with 24 pins. -25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 14 segments 14x4 bit 2.4V~5.2V 256kHz 3-Wire Serial Interface 60uA SOIC-24-300mil LCD Drivers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:HT1621BDM_TR, from EasyEDA) and its footprint (Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm, from KiCad's library), ready for a KiCad board. 6 are in stock at JLCPCB (part C79896). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Pinout
24| Pin | Name | Type |
|---|---|---|
| 1 | SEG17 | Unspecified |
| 2 | SEG16 | Unspecified |
| 3 | SEG15 | Unspecified |
| 4 | SEG14 | Unspecified |
| 5 | SEG13 | Unspecified |
| 6 | SEG12 | Unspecified |
| 7 | SEG11 | Unspecified |
| 8 | SEG10 | Unspecified |
| 9 | SEG9 | Unspecified |
| 10 | CS# | Unspecified |
| 11 | WR# | Unspecified |
| 12 | DATA | Unspecified |
| 13 | VSS | Unspecified |
| 14 | VLCD | Unspecified |
| 15 | VDD | Unspecified |
| 16 | COM0 | Unspecified |
| 17 | COM1 | Unspecified |
| 18 | COM2 | Unspecified |
| 19 | COM3 | Unspecified |
| 20 | SEG22 | Unspecified |
| 21 | SEG21 | Unspecified |
| 22 | SEG20 | Unspecified |
| 23 | SEG19 | Unspecified |
| 24 | SEG18 | Unspecified |
Open-source boards using it
2- 2 layers69.8 × 52.7 mm
Stm32 lcd driver
sigma-prj/stm32-titan-lcd-driver-tm1621d-sample
Sample STM32 F030R8 NUCLEO board application to drive 7-Segments LCD using Titan TM1621D driver
15 partsCC0-1.0
Parts like it
8
TM1621D(TA1901-A)
SOP-24-40℃~+85℃ 1/3,1/2 1/4,1/3,1/2 14x4 bit 150uA 2.4V~5.2V 256kHz 3-Wire Serial Interface QSOP-24 LCD Drivers ROHSTMLCD Drivers
TM1621B
LQFP-44(10x10)-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 ROHSTMLCD Drivers
GN1621CB
SSOP-48-300mil-40℃~+85℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.5V 256kHz 32 Segment 32x4 bit 4-Wire Serial Interface 60uA SSOP-48-300mil LCD Drivers ROHSGN SemicLCD Drivers
HT1621BQ
LQFP-48(7x7)-25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.2V 256kHz 3-Wire Serial Interface 32 Segment 32x4 bit 60uA Built-in oscillator LQFP-48(7x7) LCD Drivers ROHSHGSEMILCD Drivers
HT1621B-TD
SSOP-48-300milLCD DriversTDSEMIC
HT1621BRQZ44
LQFP-44(10x10)-40℃~+85℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.2V 256kHz 3-Wire Serial Interface 32 Segment 32x4 bit 60uA LQFP-44(10x10) LCD Drivers ROHSHTCSEMILCD DriversHT1621BDQ
LQFP-44(10.1x10.1)-25℃~+75℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.2V 256kHz 3-Wire Serial Interface 32 Segment 32x4 bit 60uA Built-in oscillator LQFP-44(10.1x10.1) LCD Drivers ROHSHGSEMILCD DriversGN1621A
QFP-44(10x10)-40℃~+85℃ 0.1uA 1/3,1/2 1/4,1/3,1/2 2.4V~5.5V 256kHz 32x4 bit 4-Wire Serial Interface 60uA QFP-44(10x10) LCD Drivers ROHSGN SemicLCD Drivers
Questions
Is there a KiCad symbol and footprint for the TM1621D?
Yes. The symbol is EasyEDA_Cloud:HT1621BDM_TR and the footprint Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TM1621D?
SOIC-24-300mil, with 24 pins. Its footprint is drawn on this page.
Where is the TM1621D datasheet?
TM publishes it: the Datasheet link on this page opens it.
Where can I order the TM1621D?
JLCPCB lists it as part C79896, with 6 in stock; the sellers' links on this page open their listings.
What can replace the TM1621D?
Parts like it in the library: the TM1621D(TA1901-A) by TM, the TM1621B by TM, the GN1621CB by GN Semic and the HT1621BQ by HGSEMI. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TM1621D?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.