mf1s7009 NXP Semiconductors, mf1s7009 Datasheet - Page 10

• Manufacturer Part Number: mf1s7009
• Description: Mainstream Contactless Smart Card Ic For Fast And Easy Solution Development
• Manufacturer: NXP Semiconductors

NXP Semiconductors
MF1S7009
Product data sheet
PUBLIC
9.5 RF interface
9.6 Memory organization
The RF-interface is according to the standard for contactless smart cards
ISO/IEC 14443 A.
The carrier field from the reader is always present (with short pauses when transmitting),
because it is used for the power supply of the card.
For both directions of data communication there is only one start bit at the beginning of
each frame. Each byte is transmitted with a parity bit (odd parity) at the end. The LSB of
the byte with the lowest address of the selected block is transmitted first. The maximum
frame length is 163 bits (16 data bytes + 2 CRC bytes = 16 * 9 + 2 * 9 + 1 start bit).
The 4 kB EEPROM memory is organised in 32 sectors with 4 blocks and in 8 sectors with
16 blocks. One block consists of 16 bytes. In the erased state the EEPROM cells are read
as a logical “0”, in the written state as a logical “1”.
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 26 July 2010
193031
Mainstream contactless smart card IC
MF1S7009
© NXP B.V. 2010. All rights reserved.
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