Mfr Part #:

ATAES132A-SHER-B

The Microchip Technology ATAES132A-SHER-B is a secure authentication chip with 32Kb of EEPROM memory. It features AES encryption and supports both SPI and I2C interfaces.

✓ Total Stock: 20,882 pcs

$ Price Range: $0.75

ATAES132A-SHER-B Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	20,882 pcs On Request	20882 pcs	On Request	1	On Request	On Request	2020+	On Request	On Request

ATAES132A-SHER-B Description

Short technical summary and product information.

The Microchip Technology ATAES132A-SHER-B is a high-security serial EEPROM device offering both authentication and confidential nonvolatile data storage. It provides 32Kb of standard EEPROM memory, compatible with Atmel AT24C32D and AT25320B, organized into 16 user zones of 2Kb each.

Key security features include an AES algorithm with 128-bit keys, AES-CCM for authentication, Message Authentication Code (MAC) capability, and secure storage for up to sixteen 128-bit keys. The device supports encrypted user memory read and write operations and includes an internal FIPS Random Number Generator (RNG).

Connectivity is provided via a high-speed 10MHz SPI interface (Mode 0 and 3) and a 1MHz standard I2C interface. The ATAES132A-SHER-B operates within a supply voltage range of 2.5V to 5.5V and has a low sleep current of less than 250nA. It is available in an 8-lead SOIC package and operates across a temperature range of -40°C to +85°C.

This authentication chip is designed for applications requiring secure data storage, firmware protection, and device authentication, such as in consumables, components, and network access control.

ATAES132A-SHER-B Quick Information

Product Type: Authentication Chip

Canonical Name: Microchip Technology ATAES132A-SHER-B Authentication Chip

Subcategory: Specialized ICs

ATAES132A-SHER-B Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

ATAES132A-SHER-B Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

ATAES132A-SHER-B Features

Secure hardware-based key storage.
32Kb standard serial EEPROM memory.
AES algorithm with 128-bit keys.
10MHz SPI and 1MHz I2C interfaces.
Operates from 2.5V to 5.5V supply.

ATAES132A-SHER-B Applications

Authenticate consumables and components.
Protect sensitive firmware.
Securely store sensitive data.
Prevent contract manufacturers from overbuilding.
Manage warranty claims.

ATAES132A-SHER-B FAQs

7 frequently asked questions generated from this part’s specifications.

What is the memory size of the ATAES132A-SHER-B?

The ATAES132A-SHER-B has 32Kb of standard serial EEPROM memory.

Which serial interfaces does the ATAES132A-SHER-B support?

It supports a 1MHz I2C interface and a 10MHz SPI interface (Mode 0 and 3).

What is the supply voltage range of the ATAES132A-SHER-B?

The operating supply voltage range is 2.5V to 5.5V.

What is the operating temperature range?

It operates over -40°C to +85°C.

What package is the ATAES132A-SHER-B available in?

The device is available in an 8-SOIC surface-mount package.

What security features does the ATAES132A-SHER-B include?

It includes AES-CCM authentication, secure storage for up to sixteen 128-bit keys, and a FIPS-certified random number generator.

What is the sleep current consumption?

The maximum sleep current is 250nA.