2 layers58 × 110 mm
LM311
GcoreExtended
0℃~+70℃ 1 1.7nA 2.4mA 200ns 2mV 36V 45nA 5V~30V TTL、CMOS ±15V SOP-8 Comparators ROHS
- Part id
- gcore/LM311
- Category
- Comparators
- Package
- SOP-8
- Pins
- 8
- In stock
- 2,051 at JLCPCB (C18184959)
- Used on
- 149 open-source boards
Overview
The LM311 is a comparator made by Gcore in a SOP-8 package with 8 pins. 0℃~+70℃ 1 1.7nA 2.4mA 200ns 2mV 36V 45nA 5V~30V TTL、CMOS ±15V SOP-8 Comparators ROHS.
PCBKit's library has its KiCad symbol (Comparator:LM311, from KiCad's library) and its footprint (Package_SO:SOP-8_3.76x4.96mm_P1.27mm, from KiCad's library), ready for a KiCad board. 2,051 are in stock at JLCPCB (part C18184959). 149 open-source boards in 94 repositories on GitHub use it.
Symbol
Footprint
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | GND | Passive |
| 2 | + | Input |
| 3 | - | Input |
| 4 | V- | Power in |
| 5 | BAL | Input |
| 6 | STRB | Input |
| 7 | — | Open collector |
| 8 | V+ | Power in |
- 2 layers215 × 100 mm
- 4 layers80 × 80 mm
- 2 layers216 × 150 mm
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HP45 standalone controller V4.02
90 parts36GPL-3.0 - 4 layers55.9 × 78.7 mm
- 2 layers217.2 × 113 mm
Junior interface
laurent-fr/junior_computer_replica
A replica of the Junior Computer (a KIM-1 clone) published by Elektor in the 80's
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Questions
Is there a KiCad symbol and footprint for the LM311?
Yes. The symbol is Comparator:LM311 and the footprint Package_SO:SOP-8_3.76x4.96mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM311?
SOP-8, with 8 pins. Its footprint is drawn on this page.
Where is the LM311 datasheet?
Gcore publishes it: the Datasheet link on this page opens it.
Where can I order the LM311?
JLCPCB lists it as part C18184959, with 2,051 in stock; the sellers' links on this page open their listings.
What can replace the LM311?
Parts like it in the library: the LM393 by GOODWORK, the LM393DR98M by GREENMICRO, the LM2903AL1-SR by 3PEAK and the LM2903SR by COSINE. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM311?
149 boards in 94 repositories on GitHub; the most starred are listed on this page, with their KiCad files.