# MM74C923N (Component) ## Description 20-Key Encoder 1 x 9:4 20-PDIP #CommonPartsLibrary #IntegratedCircuit #Logic #Signal-Switch #Multiplexer #Decoder #74C923 ## Component Details - **Owner:** jecstronic - **Created:** 1/6/2024 - **Last Updated:** 1/6/2024 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Datasheet URL:** https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/1001/MM74C922,923.pdf - **Manufacturer Part Number:** MM74C923N - **Manufacturer Name:** Texas Instruments Inc. - **Part Type:** Integrated Circuit - **Used in:** 3 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Digi-Key](https://www.digikey.com/en/products/detail/onsemi/MM74C923N/3240) | N/A | N/A | | [Mouser](https://www.mouser.com/ProductDetail/onsemi/MM74C923N?qs=CaO7pQPYUzO3kNcOR55d7Q%3D%3D) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** MM74C923N - **Package / Case Code:** PDIP - **Pin Count:** 20 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | ROW_Y1 | | | 2 | ROW_Y2 | | | 3 | ROW_Y3 | | | 4 | ROW_Y4 | | | 5 | ROW_Y5 | | | 6 | OSCILLATOR | | | 7 | KEYBOUNCE_MASK | | | 8 | COLUMN_X4 | | | 9 | COLUMN_X3 | | | 10 | GND | | | 11 | COLUMN_X2 | | | 12 | COLUMN_X1 | | | 13 | DATA_AVAILABLE | | | 14 | ~OUTPUT_ENABLE | | | 15 | DATA_OUT_E | | | 16 | DATA_OUT_D | | | 17 | DATA_OUT_C | | | 18 | DATA_OUT_B | | | 19 | DATA_OUT_A | | | 20 | VCC | | --- *Generated from [https://www.flux.ai/jecstronic/mm74c923n~jq7](https://www.flux.ai/jecstronic/mm74c923n~jq7)*