Microchip Technology HCS200T-I/SN

The HCS200 generates a changing 66-bit transmission word when a switch input is activated. It combines a 32-bit hopping portion with a 28-bit serial number and six information bits. The device is intended for a transmitter paired with a compatible KEELOQ receiver or decoder; it does not include an RF power stage.

The registered package is 8-SOIC (0.154", 3.90mm Width). The local package illustration is a family reference, not a replacement for Microchip's controlled mechanical drawing.

Layout checks

• Confirm pin 1 orientation against the manufacturer drawing.
• Use the current SOIC land-pattern dimensions for PCB release.
• Verify reel orientation, marking and assembly handling with the supplier.

The package registry marks this JPG as present, and the local JPEG was decoded successfully.

Microchip's top-view PDIP/SOIC diagram assigns the following pins to the HCS200:

Do not infer an S3 or LED pin from another KEELOQ family member; neither is present on this HCS200 pinout.

These are manufacturer data-sheet and ordering-code values, not a substitute for checking full electrical limits and timing tables under the actual circuit conditions.

The related HCS200-I/SN is present in the catalog and uses the same industrial HCS200 device family and SOIC package, but its ordering format is tube rather than tape and reel. Check purchase quantity, programming service, markings, receiver key strategy and assembly feed before changing the order code.

Other KEELOQ encoders can differ in voltage, button count, frame format, temperature option or pin assignment. Do not assume a drop-in replacement from the family name alone.

Microchip Technology identifies HCS200 as a code-hopping encoder. In its product identification system, T specifies tape-and-reel packing, I specifies -40°C to +85°C, and SN specifies the 8-lead SOIC. Verify the latest manufacturer notices and the exact purchasing code before a production order.

Confirm the full order code, reel label, date and lot traceability through the supply channel. Validate the programming state of incoming devices and protect crypt-key material during production. Test the programmed transmitter with the intended receiver and RF stage before release.

Use Microchip's current data sheet and programming specification for schematic, footprint, provisioning and system validation. Security depends on key handling and receiver implementation as well as the encoder itself. Distributor stock and price are separate, time-sensitive sourcing data.