AT88SC0404CRF-WA1 ATMEL [ATMEL Corporation], AT88SC0404CRF-WA1 Datasheet - Page 2

• Manufacturer Part Number: AT88SC0404CRF-WA1
• Description: 13.56 MHz CryptoRF EEPROM Memory 4 Kbits
• Manufacturer: ATMEL [ATMEL Corporation]

Block Diagram
Figure 1. Block Diagram
Communications
Anticollision Protocol
2
RF Interface
AC1
AC2
C
AT88SC0404CRF
Voltage
Clamp
Over
VSS
All personalization and communication with this device is performed through the RF
interface. The IC includes an integrated tuning capacitor, enabling it to operate with only
the addition of a single external coil antenna.
The RF communications interface is fully compliant with the electrical signaling and RF
power specifications in ISO/IEC 14443-2:2001 for Type B only. Anticollision operation and
frame formatting are compliant with ISO/IEC 14443-3:2001 for Type B only.
ISO/IEC 14443 nomenclature is used in this specification where applicable. The
following abbreviations are utilized throughout this document. Additional terms are
defined in the section in which they are used.
•
•
•
•
When the PICC enters the 13.56 MHz RF field of the host reader (PCD), it performs a
power on reset (POR) function and waits silently for a valid Type B polling command.
The CryptoRF PICC processes the antitearing registers as part of the POR process.
The PCD initiates the anticollision process by issuing an REQB or WUPB command.
The WUPB command activates any card (PICC) in the field with a matching AFI code.
PCD – Proximity Coupling Device: the reader/writer and antenna
PICC – Proximity Integrated Circuit Card: the tag/card containing the IC and
antenna
RFU – Reserved for Future Use: any feature, memory location, or bit that is held as
reserved for future use
$ xx – Hexadecimal Number: denotes a hex number “xx” (Most Significant Bit on
left)
Regulator
Extraction
Extraction
Clock
Data
V
DD
Frame Formatting
Error Detection
Command
Response
Interface
and
and
Random Number
Anticollision
Verification
Generator
Password
EEPROM
5023CS–CRRF–12/06
Data Transfer
Certification Unit
Encryption and
Authentication