Microchip Technology AT88CK101BK3

Overview

AT88CK101BK3 from Atmel is a Javan Jr. socket board designed for client-side CryptoAuthentication development, featuring a single SOT23-3 socket and pre-mounted AT88SA102S or AT88SA100S samples. It supports SHA-256 challenge-response authentication, operates from 2.5–5.5 V, draws <100 nA in sleep mode, and targets embedded anti-cloning and replaceable-part authentication.

For engineers reviewing the AT88CK101BK3 datasheet, AT88CK101BK3 pinout, AT88CK101BK3 application, or AT88CK101BK3 equivalent, this board enables rapid prototyping of secure authentication using single-wire interface ICs in space-constrained systems such as portable media players, GPS units, and daughter cards.

Technical Context

The AT88CK101BK3 is a hardware evaluation aid-not an IC-and serves exclusively as a passive socket carrier for CryptoAuthentication client devices (e.g., AT88SA102S). It provides mechanical and electrical support for SOT23-3 package insertion, with direct access to VCC, GND, and I/O pins via test points or headers.

No active circuitry, voltage regulation, or protocol translation is integrated. Its design assumes host-side control via external microcontroller or logic, and it lacks USB, SPI, or ISO 7816 interfaces-distinguishing it from full-featured kits like AT88CK109BK3 or AT88CK109STK.

Key Specifications

Availability

AT88CK101BK3 is available at Aetrix Electronics and suitable for embedded security prototyping, anti-cloning validation, and replaceable-component authentication requiring stable component supply and traceable sourcing for low-volume design-in.

Supply support for AT88CK101BK3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Atmel Corporation was a U.S.-based semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and secure ICs before its acquisition by Microchip Technology in 2016. It pioneered hardware-based authentication solutions for resource-constrained systems.

The AT88CK101BK3 belongs to Atmel's CryptoAuthentication development tool family, engineered specifically to accelerate client-side implementation of SHA-256 mutual authentication in cost-sensitive, size-limited embedded applications.

FAQ

What is the primary function of the AT88CK101BK3?

The AT88CK101BK3 is a passive socket board for evaluating CryptoAuthentication client ICs such as AT88SA102S. It provides mechanical mounting and electrical access to VCC, GND, and I/O pins-but contains no active components, firmware, or interface logic. Its sole purpose is to simplify physical integration during early-stage client-side authentication testing.

Does the AT88CK101BK3 include a host-side controller or USB interface?

No. The AT88CK101BK3 does not include a host-side controller, USB interface, or any serial communication peripheral. It is strictly a client-IC carrier board. Host functionality must be provided externally-e.g., via an AVR, PIC, or ARM microcontroller implementing the SHA-256 challenge-response protocol per the AT88SA102S datasheet.

Which CryptoAuthentication ICs are compatible with the AT88CK101BK3 socket?

The AT88CK101BK3 socket is mechanically and electrically compatible with all SOT23-3 packaged CryptoAuthentication client ICs, including AT88SA102S, AT88SA100S, and AT88SA10HS (host side, though not intended for this board). Compatibility is defined by pinout (VCC–GND–I/O), voltage range (2.5–5.5 V), and single-wire protocol support.

How does the AT88CK101BK3 differ from the AT88CK109BK3?

The AT88CK101BK3 supports only client-side ICs in a single SOT23-3 socket, while the AT88CK109BK3 provides two sockets-one for client and one for host (e.g., AT88SA10HS)-enabling full end-to-end CryptoAuthentication system validation. The AT88CK101BK3 lacks dual-socket layout, host-side signal routing, or shared bus configuration.

Is firmware or software included with the AT88CK101BK3?

No firmware or software is bundled with the AT88CK101BK3. It is a hardware-only evaluation aid. Developers must implement the SHA-256 challenge-response protocol on their host controller using Atmel-provided application notes (e.g., "CryptoAuthentication Design Guide") and reference code libraries for supported platforms.