AT88SC0404C_09 ATMEL [ATMEL Corporation], AT88SC0404C_09 Datasheet - Page 2

• Manufacturer Part Number: AT88SC0404C_09
• Description: CryptoMemory 4 Kbit
• Manufacturer: ATMEL [ATMEL Corporation]

1.
1.1.
1.2.
2
Table 1.
Figure 1.
Description
The AT88SC0404C member of the CryptoMemory
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.
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.
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.
AT88SC0404C
SCL/CLK=C3
SCL/CLK=C3
V
GND
SCL/CLK
SDA/IO
RST
CC
Pad
RST=C2
V
V
NC=C4
NC=C2
NC=C4
CC
CC
=C1
=C1
ISO Smart Card Module
TWI Smart Card Module
Supply Voltage
Ground
Serial Clock Input
Serial Data Input/Output
Reset Input
Pin Assignment
Pin Configuration
Description
C5=GND
C6=NC
C7=SDA/IO
C8=NC
C5=GND
C6=NC
C7=SDA/IO
C8=NC
ISO Module
GND
NC
NC
NC
C1
C5
C3
C7
C2
8-lead SOIC, PDIP
®
family is a high-performance secure memory providing 4 Kbits of
1
2
3
4
TWI Module
8
7
6
5
NC
C1
C5
C3
C7
V
NC
SCL
SDA
CC
Package Pin
Standard
NC
8
4
6
5
2023KS–SMEM–10/09