AT88SC0404C-MJ(2009) Просмотр технического описания (PDF) - Atmel Corporation
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AT88SC0404C-MJ Datasheet PDF : 20 Pages
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Table 1. Pin Assignment
Pad
Description
VCC
GND
Supply Voltage
Ground
SCL/CLK Serial Clock Input
SDA/IO Serial Data Input/Output
RST
Reset Input
ISO Module
C1
C5
C3
C7
C2
TWI Module
C1
C5
C3
C7
NC
Standard
Package Pin
8
4
6
5
NC
Figure 1. Pin Configuration
ISO Smart Card Module
VCC=C1
RST=C2
SCL/CLK=C3
NC=C4
C5=GND
C6=NC
C7=SDA/IO
C8=NC
TWI Smart Card Module
VCC=C1
NC=C2
C5=GND
C6=NC
SCL/CLK=C3
C7=SDA/IO
NC=C4
C8=NC
8-lead SOIC, PDIP
NC 1
NC 2
8
VCC
7 NC
NC 3
6 SCL
GND 4
5 SDA
1. Description
The AT88SC0404C member of the CryptoMemory® family is a high-performance secure memory providing 4 Kbits of
user memory with advanced security and cryptographic features built in. The user memory is divided into four 128-byte
zones, each of which may be individually set with different security access rights or effectively combined together to
provide space for 1 to 4 data files.
1.1.
Smart Card Applications
The AT88SC0404C 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 AT88SC0404C 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
AT88SC0404C 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 1.0 MHz is used for fast
and efficient communications with up to 15 devices that may be individually addressed. The AT88SC0404C is available
in industry standard 8-lead packages with the same familiar pinout as 2-wire serial EEPROMs.
2 AT88SC0404C
2023KS–SMEM–10/09
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