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Microchip Technology HCS362-I/ST
- Part No.:
- HCS362-I/ST
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Description:
- IC CODE HOPPING ENCODER 8TSSOP
- Quantity:
Unit Price:$0
Ext Price:$0
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- Shipping:
Product Details
HCS362-I/ST - Industrial KEELOQ Encoder in 8-Lead TSSOP
Microchip Technology HCS362-I/ST is a four-button code-hopping encoder in an industrial-temperature, 8-lead plastic TSSOP package.
Technical, pinout, and ordering details follow Microchip HCS362 datasheet DS40189E.
Overview
The HCS362 generates a 69-bit transmission containing a 32-bit encrypted hopping field and 37-bit fixed field. Four button inputs permit up to 15 functions. The I/ST order suffix identifies the industrial −40 to +85 °C grade and 8-lead plastic TSSOP. The TSSOP pin arrangement differs from the SOIC/PDIP diagram, so use the package-specific pinout in schematic work.
Key Advantages
The encrypted hopping field changes across transmissions.
Four inputs support up to 15 encoded function combinations.
Two programmable 64-bit keys are held in read-protected on-chip EEPROM.
The industrial-grade TSSOP fits surface-mount transmitter assemblies.
Feature Summary
69-bit stream with 32-bit hopping and 37-bit fixed portions.
Two programmable 64-bit encryption keys and a 60-bit seed.
PWM or Manchester modulation with selectable baud rates.
RF-enable output, queue information, timer bits, and programmable timeout.
Package & Footprint
Microchip's ST suffix specifies an 8-lead plastic TSSOP with a 4.4 mm body. The catalog's normalized package is 8-TSSOP. Confirm the TSSOP mechanical drawing and pin-1 orientation before selecting a land pattern; do not reuse the SOIC pin assignment.
- Use the manufacturer TSSOP top-view pin diagram.
- Check DATA and RFEN connections to the transmitter stage.
- Place supply decoupling close to VDD and VSS.
Use the datasheet drawing for exact dimensions; the package picture is illustrative.
TSSOP Pin Functions
Microchip DS40189E 8-lead TSSOP top-view assignment:
Button input 2.
Button input 3 or RF-enable output.
Ground reference.
Encoder data and programming connection.
LED or shift-related function.
Positive supply.
Button input 0.
Button input 1.
Confirm multiplexed functions and orientation against the actual TSSOP package drawing.
Key Specifications
| Manufacturer | Microchip Technology |
|---|---|
| Order code | HCS362-I/ST |
| Function | KEELOQ code-hopping encoder |
| Package | 8-lead plastic TSSOP, 4.4 mm body |
| Temperature grade | Industrial, −40 to +85 °C |
| Operating supply | 2.0 to 6.3 V |
| Transmission stream | 69 bits |
| Encrypted hopping portion | 32 bits |
| Fixed portion | 37 bits |
| Encryption keys | Two programmable 64-bit keys |
| Seed | 60 bits |
| Button inputs | Four |
| Available functions | Up to 15 |
| Output modulation | PWM or Manchester |
| RF interface | RF-enable output |
Receiver key learning and synchronization are system requirements.
Replacement Considerations
HCS362-I/SN is an SOIC order code, not a footprint or pin-for-pin substitute for the ST TSSOP layout. HCS362T-I/ST denotes a separate tape-and-reel ordering form. Compare pin maps, package, RFEN multiplexing, key programming, timing, and receiver behavior before substitution. No unverified internal link is provided.
Manufacturer Information
Microchip Technology's HCS362 datasheet DS40189E documents the encoder format, package-specific pin diagrams, electrical conditions, and ordering system. It defines I as −40 to +85 °C and ST as the 8-lead, 4.4 mm plastic TSSOP.
Applications
Encode button commands for an enrolled receiver.
Support several remote-control functions.
Send programmed actions to a matching receiver.
Use a provisioned encoder identity in a unidirectional link.
Quality & Authenticity
Verify HCS362-I/ST order code, TSSOP marking, and lot traceability. Program keys, serial identity, seed, and configuration through an authorized process, then test against the intended receiver.
FAQ
What does I/ST identify?
The industrial −40 to +85 °C grade and 8-lead plastic TSSOP.
Can the SOIC pin layout be reused?
No. The TSSOP top-view pin assignment differs; use its dedicated diagram.
Is a receiver included?
No. A compatible external receiver and RF transmitter stage are required.
Engineering Notice
Protect manufacturing keys and verify the TSSOP pinout, receiver synchronization, RFEN behavior, timing, oscillator calibration, supply range, and complete RF link against DS40189E before release.
HCS362-I/ST Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- KEELOQ®
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Type:
- Code Hopping Encoder
- Applications:
- Remote Secure Access, Keyless Entry
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
- Grade:
- -
- Qualification:
- -
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