

Overview
The TLC551CD is a timers , Counter made by Texas Instruments in a SOIC-8 package with 2 pins. 0℃~+70℃ 1.8MHz 1V~15V 360uA SOIC-8 555 Timers / Counters ROHS.
PCBKit's library has its footprint (Package_SO:SO-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1520206). 1 open-source board in 1 repository on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
Parameters
6- Features
- Adjustable duty cycle oscillation, Reset function
- Operating Temperature
- 0℃~+70℃
- Output Current
- 100mA
- Supply Current
- 15uA
- Timer Number
- 1
- Voltage - Supply
- 1V~15V
Order codes
1- TLC551CDLCSC C1520206
Open-source boards using it
All 1- 2 layers61 × 20.3 mm

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Is there a KiCad symbol and footprint for the TLC551CD?
Yes. the footprint Package_SO:SO-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TLC551CD?
SOIC-8, with 2 pins. Its footprint is drawn on this page.
Where is the TLC551CD datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TLC551CD?
JLCPCB lists it as part C1520206, with 0 in stock; the sellers' links on this page open their listings.
What can replace the TLC551CD?
Parts like it in the library: the ALD1502SAL by Advanced Linear Devices, the DS1050Z-005 by Maxim Integrated (Analog Devices), the DS1052Z-100 by Maxim Integrated (Analog Devices) and the DS1077LZ-40+ by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TLC551CD?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8ALD1502SAL
SOIC-80℃~+70℃ 2.5MHz 2V~12V 50uA SOIC-8 Timers / Counters ROHSAdvanced Linear DevicesTimers / CountersDS1050Z-005
SOIC-8-40℃~+85℃ 2.7V~5.5V 50uA 5kHz SOIC-8 Timers / CountersMaxim Integrated (Analog Devices)Timers / CountersDS1052Z-100
SOIC-8SOIC-8 Timers / CountersMaxim Integrated (Analog Devices)Timers / CountersDS1077LZ-40+
SOIC-8-40℃~+85℃ 2.7V~3.6V 40MHz SOIC-8 Clock Generators, PLLs, Frequency Synthesizers ROHSMaxim Integrated (Analog Devices)Timers / CountersDS1077LZ-50+
SOIC-8-40℃~+85℃ 2.7V~3.6V 50MHz Built-in Output synchronization and phase alignment SOIC-8 Clock Generators, PLLs, Frequency Synthesizers ROHSMaxim Integrated (Analog Devices)Timers / CountersDS1077LZ-60+
SOIC-8-40℃~+85℃ 2.7V~3.6V 60MHz Built-in I2C SOIC-8 Clock Generators, PLLs, Frequency Synthesizers ROHSMaxim Integrated (Analog Devices)Timers / CountersDS1077Z-203+T&R
SOIC-8-40℃~+85℃ 133MHz 4.75V~5.25V 50mA SOIC-8 Programmable Oscillators ROHSMaxim Integrated (Analog Devices)Timers / CountersICM7242IBAZ
SOIC-8-25℃~+85℃ 220uA 2V~16V Built-in crystal oscillator No SOIC-8 Timers / Counters ROHSRenesas ElectronicsTimers / Counters