WM71004 Ramtron Corporation, WM71004 Datasheet

WM71004

Manufacturer Part Number

WM71004

Description

4/8/16kbit Secure F-ram Memory With Gen-2 Rfid Access

Manufacturer

Ramtron Corporation

Datasheet

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WM71004/71008/71016

4/8/16Kbit Secure F-RAM Memory with Gen-2 RFID Access

DESCRIPTION

The WM710xx is a family of RFID tag ICs with

nonvolatile

ferroelectric process. A ferroelectric random access

memory or F-RAM is nonvolatile and performs reads

and writes like a RAM. It provides reliable data

retention for 20 years while eliminating the

complexities, overhead, and system level reliability

problems caused by EEPROM and other nonvolatile

memories.

Unlike EEPROM’s, the WM710xx write operations

are zero power – there is no power or speed premium

paid for executing writes into the WM710xx as

compared to read power and speed. Operation of the

memory is fully symmetric: identical read and write

characteristics in terms of power, speed, and

reliability.

The WM710xx’s RFID interface is compliant with

the EPC Class-1 Generation-2 UHF RFID Protocol

for Communications at 860 MHz – 960 MHz,

Version 1.2.0 Specification for RFID Air Interface.

The WM710xx is a two chip configuration offered in

various forms: standard IC package, wafer, bare dice,

or as a fully tested ISO-18000-6C compliant

transponder antenna inlay.

discussed herein are applicable to the combined

chipset operation.

This is a product in development. Characteristic data

and other specifications are subject to change without notice.

Rev. 0.1

Dec. 2008

with F-RAM

WM710xx

RFID Tag

Figure 1. System Block Diagram

memory

employing

All specifications

(Class-1

Reader

Gen-2)

RFID

advanced

FEATURES

4/8/16 Kbit Ferroelectric Nonvolatile RAM



Interface and Security Features



Custom Features



Ultra Low Power Operation



Industry Standard Configurations



Organized as 256/512/1024 x 16 bits

Very High Read/Write Endurance (> 10

20 Year Data Retention

Symmetric Read/Write Operation

Advanced High-Reliability Ferroelectric Process

EPC Class 1 Gen2 (ISO18000-6C) RFID

Compliant Interface (revision 1.2.0)

192-Bit Memory: 96-Bit Electronic Product

Code™ (EPC), 32-Bit Access Password, 32-Bit

KILL Password, 32-Bit TID Memory (Factory

Programmed and Locked)

Two additional EPC words for a total of 9

Additional TID memory to support unique serial

number (total=4)

Inventory, Read, Write and Erase features

Kill command

Block Permalock Command

Access Command

UHF carrier frequencies from 860 MHz to 960

MHz ISM band, ASK demodulation

Up to 640Kbps and 128Kbps read and write

transmission, respectively

Stored Address Pointer to Improve Data Write

Speed

Stored Address Pointer Lock

Memory Read/Write Sensitivity: < -13dBm, typ.

Industrial Temperature -40 C to +85 C

6-pin DFN (-G)

Bumped Wafers or Tape & Reel die

Transponder inlays

1850 Ramtron Drive, Colorado Springs, CO 80921

Ramtron International Corporation

(800) 545-FRAM, (719) 481-7000

http://www.ramtron.com

Page 1 of 15

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Related parts for WM71004

WM71004 Summary of contents

Page 1

... Product Preview WM71004/71008/71016 4/8/16Kbit Secure F-RAM Memory with Gen-2 RFID Access DESCRIPTION The WM710xx is a family of RFID tag ICs with nonvolatile memory employing ferroelectric process. A ferroelectric random access memory or F-RAM is nonvolatile and performs reads and writes like a RAM. It provides reliable data ...

Page 2

Pin Configuration (DFN Package) Top View (PCB Layout Pin Description Pin Name Type Description ANT-, Input RFID antenna: Connect to external RFID antenna terminal. Connect ANT- to ANT+ external RFID antenna ...

Page 3

FUNCTIONAL DESCRIPTION Overview The WM710xx is a family of non-volatile memory devices with an industry standard UHF RFID interface that enables processing data in and out of memory as a generic passive RFID transponder. Unlike other transponder ICs, the WM710xx ...

Page 4

Memory Map WM710xx’s memory is partitioned according to the logical and physical mapping shown in Table 1 below. Table 1. Memory Map Physical EPC Logical Word Memory Word Address Bank Address 0x000 Reserved 0x000 0x001 Reserved 0x001 0x002 Reserved 0x002 ...

Page 5

The following section provides detailed descriptions of fields, words, or banks of memory shown in Table 1. This section is not yet complete. The EPC Global website has a downloadable Adobe pdf file that has all the specifications, glossary of ...

Page 6

Table 2. Control & Status Word Bit Mnemonic 15 CtrlLock 14 CtrlLockLock 13 RFU 12 RFU 11 RFU 10 RFU 9 RFU 8 RFU 7 RFU 6 Blocksize[2] 5 Blocksize[1] 4 Blocksize[0] 3 WrapStatus 2 WrapEnable 1 AutoLockEnable 0 AutoIncrementEnable ...

Page 7

... This cannot be used in conjunction with the auto wrap. User Memory User Memory: WM710xx is available with 4kbit, 8kbit, and 16kbit of total memory. Available user memory is as shown in Table 3 User Memory. Table 3. User Memory Part Number Total Memory WM71004 4kbits WM71008 8kbits WM71016 16kbits Rev. 0.3 July. 2009 WM710xx – ...

Page 8

Supported Commands The WM710xx supports the following Select, Inventory, and Access commands sets as described in the EPCglobal class 1 generation 2 UHF RFID descriptions of these commands.  QueryRep  ACK  Query  QueryAdjust  Select  NAK ...

Page 9

SPECIFICATIONS WM710xx’s RFID Interface conforms to the Specification for RFID Air Interface EPC Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz – 960 MHz, Version 1.2.0. Options and Exceptions are noted here: State Persistence Requirements WM710xx features infinite ...

Page 10

WM710xx defaults to finite persistence mode, meaning that it is conformant with the specified standard for State Flag S1. However, infinite persistence may be enabled by programming the Control & Status memory location appropriately. If infinite persistence is disabled, WM710xx ...

Page 11

Int:7 Modulation Spreading Sequence (direct-sequence Int:7a [DSSS systems) Chip Rate lnt:7b (spread-spectrum systems) Chip Rate Accuracy Int:7c (spread-spectrum systems) lnt:7d Modulation Depth lnt:7e Duty Cycle lnt:7f FM Deviation Int:8 Data Coding Int:9 Bit Rate Int:9a Bit Rate Accuracy Interrogator Transmit ...

Page 12

Table 5. Transponder to Interrogator Communications Summary Ref. Parameter Name Tag:1 Operating Frequency Range Tag:1a Default Operating Frequency Operating Channels (spread-spectrum Tag:1b systems) Tag:1c Operating Frequency Accuracy Frequency Hop Rate Tag:1d (frequency-hopping [FHSS] systems) Frequency Hop Sequence Tag:1e (frequency-hopping [FHSS] ...

Page 13

Tag:9 Bit Rate Tag:9a Bit Rate Accuracy Tao Transmit Modulation Accuracy Tag:10 (frequency-hopping [FHSSJ systems Tag:11 Preamble Tag:11a Preamble Length Tag:11b Preamble Waveform Tag:11c Bit-Sync Sequence Tag:11d Frame-Sync Sequence Scrambling Tag:12 (spread-spectrum systems) Tag:13 Bit Transmission Order Tag:14 Reserved Tag:15 ...

Page 14

... DFN Package Marking Scheme for Body Size 3mm x 3mm Legend: P= Product code: J=71004, K=71008, L=71016 Y= Year: A=2009, B=2010, C=2011, etc. LL= Lot code: A0=lot 1, A1=lot 2, etc. PYLL Example: WM71004, “Green” DFN-6 package, Lot 0012, Year 2009 JAA1 Rev. 0.3 July. 2009 WM710xx – Secure FRAM with RFID Exposed metal pad. ...

Page 15

Revision History Revision Date 0.1 12/12/2008 0.2 2/11/2009 0.3 5/20/2009 Ordering Information Rev. 0.3 July. 2009 Summary Initial release. Order information and package update Update order information WM710xx – Secure FRAM with RFID Page ...

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