AT88SC0404CA-MJTG Atmel, AT88SC0404CA-MJTG Datasheet - Page 5

• Manufacturer Part Number: AT88SC0404CA-MJTG
• Description: CRYPTOMEM 4KBIT 4 ZONE MOD J TWI
• Manufacturer: Atmel
• Series: CryptoMemory®r

Specifications of AT88SC0404CA-MJTG

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 4K (512 x 8)
• Speed: 4MHz
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: M2 J, Smart Card Module
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Description
The Atmel
memory with advanced built-in security and cryptographic features. The memory is divided into four or eight user zones
each of which may be individually set with different security access rights or used together to provide space for one or
multiple data files. A configuration zone contains registers to define the security rights for each user zone and space for
passwords and secret keys used by the security logic of Atmel CryptoMemory
Through dynamic, symmetric-mutual authentication, data encryption, and the use of encrypted checksums,
CryptoMemory provides a secure place for storage of sensitive information within a system. With its tamper protection
circuits, this information remains safe even under attack.
CryptoMemory also provides high security, low cost and ease of implementation of host-client type systems without the
need for a microprocessor operating system. The embedded cryptographic engine provides for a dynamic, symmetric-
mutual authentication between the device and host, as well as performs stream encryption for all data and passwords
exchanged between the device and host. Up to four unique key sets may be used for these operations.
Differences from Atmel AT88SCxxxxC Family of Products
The key differentiating feature of the AT88SCxxxxCA family of memory devices from AT88SCxxxxC family is support
for hardware implementation of the TWI READ command. Support for this TWI hardware command allows for faster
application development and also permits greater device versatility. In addition, AT88SCxxxxCA offers a RANDOM
READ command whereby given a starting address, the user can clock unlimited number of bytes from the device up to
the memory capacity. Last but not least, the AT88SCxxxxCA family of devices specifically targets low voltage and low
power applications.
Embedded Applications
A 2-wire serial interface running at 1.0MHz is used for fast and efficient communications with up to 15 devices that may
be individually addressed. CryptoMemory is available in industry standard 8-lead packages with the same familiar pin
layout as 2-wire serial EEPROM’s supporting only the synchronous communications protocol.
Note:
Smart Card Applications
CryptoMemory offers the ability to communicate with virtually any smart card reader using the asynchronous T=0
protocol defined in ISO 7816-3. All CryptoMemory devices in smart card module form will also communicate using a
synchronous 2-wire serial interface.
Scope
This CryptoMemory Specification document includes all specifications for the Standard, Authentication, and Encryption
modes of CryptoMemory operation.
Atmel AT88SC0104/0204/0404/0808/CA
TSSOP Pinout not the same
®
AT88SCxxxxCA is a family of four high-performance secure memory devices providing 1- to 8-Kbits of user
®
.
8664C–CRYPT–01/10