Microchip Technology ECC608-TFLXWPCS

The ECC608-TFLXWPC is a hardware-backed cryptographic coprocessor with a pre-configured security architecture for Qi 1.3 wireless-power transmitter authentication. It stores protected keys and supports WPC certificate use cases, with optional TLS authentication and secure-boot functions according to the provisioned slot policy. This -S ordering variant uses an 8-lead SOIC and I2C interface; the unsuffixed S code is the manufacturer's production-reel option.

The registered package is 8-SOIC (0.154", 3.90mm Width). Microchip identifies the S option as an 8-lead narrow-body SOIC. The local JPG is a generic package illustration, not a device-specific marking or controlled mechanical drawing; use Microchip's latest SOIC drawing for footprint and pin-1 orientation.

Layout checks

• Verify the manufacturer's SOIC land pattern and pin-1 index.
• Place the I2C pull-ups and supply bypassing per system design.
• Do not substitute the UDFN footprint for the SOIC footprint.

Microchip's 8-lead SOIC top-view pinout assigns pins 1, 2 and 3 as NC; pin 4 as GND; pin 5 as SDA; pin 6 as SCL; pin 7 as NC; and pin 8 as VCC. SDA is I2C serial data and SCL is the I2C clock input. NC pins are not functional connections; follow the data-sheet pin and layout guidance rather than repurposing them.

Typical values and conditions are not guaranteed limits. Confirm the full electrical tables and provisioning configuration for the intended design.

ECC608-TFLXWPCS-PROTO is the related SOIC prototype bulk ordering option; the U-suffix family uses a different UDFN footprint. A generic ECC608 or a differently provisioned TrustFLEX device is not automatically equivalent: verify WPC certificate provisioning, locked slot policies, host protocol, pinout, package and lifecycle before substitution. No unverified internal product link is provided.

Microchip data sheet DS40002337A explicitly lists ECC608-TFLXWPCS as a provisioned, 8-SOIC, production-reel, I2C ordering option. It documents the WPC-oriented configuration, pinout, slot policy, commands, electrical characteristics and SOIC package drawing. Confirm current documentation and provisioning choices with Microchip for production qualification.

Verify the exact -S order code, Microchip traceability, package marking and provisioning record. A production-reel code and generic SOIC imagery do not by themselves prove certificate enrollment or system suitability. Authenticate WPC credentials and device responses in the target system.

Before release, check the latest Microchip data sheet, device personalization and WPC membership requirements, I2C electrical timing, power sequencing and security threat model. A secure element alone does not establish system-level Qi compliance or guarantee resistance to every attack.