AT88SC0104C
Atmel CryptoMemory, 1-Kbit
SUMMARY DATASHEET
Features
One of a family of nine devices with user memories from 1-Kbit to 256-Kbit
1-Kbit (128-byte) EEPROM user memory
Four 32 byte (256 bit) zones
Self-timed write cycle
Single byte or 16-byte page write mode
Programmable access rights for each zone
2-Kbit configuration zone
37-byte OTP area for user-defined codes
160-byte area for user-defined keys and passwords
High security features
64-bit mutual authentication protocol (under license of ELVA)
Encrypted checksum
Stream encryption
Four key sets for authentication and encryption
Eight sets of two 24-bit passwords
Anti-tearing function
Voltage and frequency monitor
Smart card features
ISO 7816 Class A (5V) or Class B (3V) operation
ISO 7816-3 asynchronous T = 0 protocol (Gemplus
®
patent) *
Multiple zones, key sets and passwords for multi-application use
Synchronous 2-wire serial interface for faster device initialization *
Programmable 8-byte answer-to-reset register
ISO 7816-2 compliant modules
Embedded application features
Low voltage operation: 2.7V to 5.5V
Secure nonvolatile storage for sensitive system or user information
2-wire serial interface
1.0MHz compatibility for fast operation
Standard 8-lead plastic packages, green compliant (exceeds RoHS)
Same pinout as 2-wire Serial EEPROMs
High reliability
Endurance: 100,000 cycles
Data retention: 10 years
ESD protection: 4,000V min
* Note: Modules available with either T=0 / 2-wire modes or 2-wire mode only
This is a summary document.
The complete document is
available on the Atmel website
at www.atmel.com.
Atmel-2021MS-CryptoMem-AT88SC0104C-Datasheet-Summary_122013
AT88SC0104C [SUMMARY DATASHEET]
Atmel-2021MS-CryptoMem-AT88SC0104C-Datasheet-Summary_122013
2
Table 1. Pin Assignment
Pad Description ISO Module TWI Module Standard Package Pin
VCC Supply Voltage C1 C1 8
GND Ground C5 C5 4
SCL/CLK Serial Clock Input C3 C3 6
SDA/IO Serial Data Input/Output C7 C7 5
RST Reset Input C2 NC NC
Pin Configuration
1. Description
The Atmel
®
AT88SC0104C member of the Atmel CryptoMemory
®
family is a high-performance secure memory providing 1-
Kbit of user memory with advanced security and cryptographic features built in. The user memory is divided into four 32-byte
zones, each of which may be individually set with different security access rights or effectively combined together to provide
space for one to four data files.
1.1 Smart Card Applications
The AT88SC0104C provides high security, low cost, and ease of implementation without the need for a microprocessor
operating system. The embedded cryptographic engine provides for dynamic and symmetric mutual authentication between
the device and host, as well as performing 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. The AT88SC0104C offers the ability to communicate with
virtually any smart card reader using the asynchronous T = 0 protocol (Gemplus Patent) defined in ISO 7816-3.
1.2 Embedded Applications
Through dynamic and symmetric mutual authentication, data encryption, and the use of encrypted checksums, the
AT88SC0104C provides a secure place for storage of sensitive information within a system. With its tamper detection circuits,
this information remains safe even under attack. 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. The AT88SC0104C is available in industry standard
8-lead packages with the same familiar pinout as 2-wire Serial EEPROMs.
V
CC
=C1
RST=C2
SCL/CLK=C3
NC=C4
ISO Smart Card Module
C5=GND
C6=NC
C7=SDA/IO
C8=NC
NC
NC
NC
GND
1
2
3
4
8
7
6
5
8-lead SOIC, PDIP
V
CC
NC
SCL
SDA
V
CC
=C1
NC=C2
SCL/CLK=C3
NC=C4
TWI Smart Card Module
C5=GND
C6=NC
C7=SDA/IO
C8=NC
AT88SC0104C [SUMMARY DATASHEET]
Atmel-2021MS-CryptoMem-AT88SC0104C-Datasheet-Summary_122013
3
Figure 1-1. Block Diagram
2. Pin Descriptions
2.1 Supply Voltage (V
CC
)
The V
CC
input is a 2.7V to 5.5V positive voltage supplied by the host.
2.2 Clock (SCL/CLK)
In the asynchronous T = 0 protocol, the SCL/CLK input is used to provide the device with a carrier frequency f. The nominal
length of one bit emitted on I/O is defined as an “elementary time unit” (ETU) and is equal to 372/ f. When the synchronous
protocol is used, the SCL/CLK input is used to positive edge clock data into the device and negative edge clock data out of the
device.
2.3 Reset (RST)
The AT88SC0104C provides an ISO 7816-3 compliant asynchronous answer to reset sequence. When the reset sequence is
activated, the device will output the data programmed into the 64-bit answer-to-reset register. An internal pull-up on the RST
input pad allows the device to be used in synchronous mode without bonding RST. The AT88SC0104C does not support the
synchronous answer-to-reset sequence.
2.4 Serial Data (SDA/IO)
The SDA pin is bidirectional for serial data transfer. This pin is open-drain driven and may be wired with any number of other
open drain or open collector devices. An external pull-up resistor should be connected between SDA and V
CC
. The value of
this resistor and the system capacitance loading the SDA bus will determine the rise time of SDA. This rise time will determine
the maximum frequency during read operations. Low value pull-up resistors will allow higher frequency operations while
drawing higher average power. SDA/IO information applies to both asynchronous and synchronous protocols.
When the synchronous protocol is used, the SCL/CLK input is used to positive edge clock data into the device and negative
edge clock data out of the device.
Random
Generator
Authentication,
Encryption and
Certification Unit
EEPROM
Answer to Reset
Data Transfer
Password
Verification
Reset Block
Asynchronous
ISO Interface
Synchronous
Interface
Power
Management
V
CC
GND
SCL/CLK
SDA/IO
RST

AT88SC0104C-MJ

Mfr. #:
Manufacturer:
Microchip Technology / Atmel
Description:
EEPROM CRYPTO Memory 1Kbit, 4zones
Lifecycle:
New from this manufacturer.
Delivery:
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