ATAES132A EEPROM Datasheet

ATAES132A Datasheet, PDF, Equivalent


Part Number

ATAES132A

Description

32K AES Serial EEPROM

Manufacture

Microchip

Total Page 30 Pages
Datasheet
Download ATAES132A Datasheet


ATAES132A
ATAES132A
ATAES132A 32K AES Serial EEPROM Complete Data Sheet
Features
• Crypto Element Device with Secure Hardware-Based Key Storage
• 32 kb Standard Serial EEPROM Memory
– Compatible with the Microchip AT24C32D and the Microchip AT25320B
– 16 User Zones of 2 kb Each
• High-Security Features
– AES Algorithm with 128-bit Keys
– AES-CCM for Authentication
– Message Authentication Code (MAC) Capability
– Guaranteed Unique Die Serial Number
– Secure Storage for up to Sixteen 128-bit Keys
– Encrypted User Memory Read and Write
– Internal High-Quality FIPS Random Number Generator (RNG)
– 16 High-Endurance Monotonic EEPROM Counters
• Flexible User Configured Security
– User Zone Access Rights Independently Configured
– Authentication Prior to Zone Access
• Read/Write, Encrypted, or Read-Only User Zone Options
• High-Speed Serial Interface Options
– 10 MHz SPI (Mode 0 and 3)
– 1 MHz Standard I2C Interface
• 2.5V to 5.5V Supply Voltage Range
• <250 nA Sleep Current
• 8-pad UDFN and 8-lead SOIC Package Options
• Temperature Range: -40°C to +85°C
Applications
• Easily Add Security by Replacing Existing Serial EEPROM
• Authenticate Consumables, Components, and Network Access
• Protect Sensitive Firmware
• Securely Store Sensitive Data and Enable Paid-for Features
• Prevent Contract Manufacturers from Overbuilding
• Manage Warranty Claims
• Securely Store Identity Data (i.e. Fingerprints and Pictures)
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40002023A-page 1

ATAES132A
ATAES132A
Description
The Microchip ATAES132A is a high-security, Serial Electrically-Erasable and Programmable Read-Only
Memory (EEPROM) providing both authentication and confidential nonvolatile data storage capabilities.
Access restrictions for the 16 user zones are independently configured, and any key can be used with any
zone. In addition, keys can be used for standalone authentication. This flexibility permits the ATAES132A to
be used in a wide range of applications.
The AES-128 cryptographic engine operates in AES-CCM mode to provide authentication, stored data
encryption/decryption, and Message Authentication Codes. Data encryption/decryption can be performed for
internally stored data or for small external data packets, depending upon the configuration. Data encrypted by
one ATAES132A device can be decrypted by another, and vice versa.
The ATAES132A pinout is compatible with standard SPI and I2C Serial EEPROMs to allow placement on
existing PC boards. The SPI and I2C instruction sets are identical to the Microchip Serial EEPROMs. The
extended security functions are accessed by sending command packets to the ATAES132A using standard
write instructions, and reading responses using standard read instructions. The ATAES132A secure Serial
EEPROM architecture allows it to be inserted into existing applications.
The ATAES132A device incorporates multiple physical security mechanisms to prevent the release of the
internally stored secrets. Secure personalization features are provided to facilitate third-party product
manufacturing.
Pin Configuration and Pinouts
Table 1. Pin Configuration
Pin Function
NC No Connect
CS SPI Mode: Chip Select
I2C Mode: NC
SO SPI Mode: Serial Data Out
I2C Mode: NC or Authorization Output (AUTHO)
SDA/SI
SPI Mode: Serial Data In
I2C Mode: Serial Data I/O
SCK
SPI Mode: SPI Clock Input
I2C Mode: SCL Clock Input
VCC
VSS
Positive Supply Connection
Ground Supply Connection
Figure 1. Pinouts
8-Lead SOIC
(Top View)
CS 1
SO 2
NC 3
VSS
4
8 VCC
7 NC
6 SCK
5 SI/SDA
8-Lead UDFN
(Top View)
CS 1
SO 2
NC 3
VSS 4
8 VCC
7 NC
6 SCK
5 SI/SDA
Note: Drawings are not to scale.
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40002023A-page 2


Features ATAES132A ATAES132A 32K AES Serial EEPRO M Complete Data Sheet Features • Cryp to Element Device with Secure Hardware- Based Key Storage • 32 kb Standard Se rial EEPROM Memory – Compatible with the Microchip AT24C32D and the Microchi p AT25320B – 16 User Zones of 2 kb Ea ch • High-Security Features – AES A lgorithm with 128-bit Keys – AES-CCM for Authentication – Message Authenti cation Code (MAC) Capability – Guaran teed Unique Die Serial Number – Secur e Storage for up to Sixteen 128-bit Key s – Encrypted User Memory Read and Wr ite – Internal High-Quality FIPS Rand om Number Generator (RNG) – 16 High-E ndurance Monotonic EEPROM Counters • Flexible User Configured Security – U ser Zone Access Rights Independently Co nfigured – Authentication Prior to Zo ne Access • Read/Write, Encrypted, or Read-Only User Zone Options • High-S peed Serial Interface Options – 10 MH z SPI (Mode 0 and 3) – 1 MHz Standard I2C Interface • 2.5V to 5.5V Supply Voltage Range • <250 nA Sleep Current • 8-pad UDFN and 8-lead SOIC.
Keywords ATAES132A, datasheet, pdf, Microchip, 32K, AES, Serial, EEPROM, TAES132A, AES132A, ES132A, ATAES132, ATAES13, ATAES1, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)