WM71000-NBSD-DA Ramtron, WM71000-NBSD-DA Datasheet
WM71000-NBSD-DA
Specifications of WM71000-NBSD-DA
Related parts for WM71000-NBSD-DA
WM71000-NBSD-DA Summary of contents
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... Ultra Low Power Operation Memory Read/Write Sensitivity: < -6 dBm (typ.) Industry Standard Configurations Industrial Temperature -40 +85 C Bumped Wafers 8-pin UDFN 1850 Ramtron Drive, Colorado Springs, CO 80921 14 ) Ramtron International Corporation (800) 545-FRAM, (719) 481-7000 http://www.ramtron.com Page ...
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PIN CONFIGURATION (UDFN PACKAGE) PIN DESCRIPTION Pin Name Pin Number ANT+, ANT Rev. 1.3 Apr. 2011 WM710xx – Secure F-RAM with Gen-2 RFID Top View (PCB Layout ...
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FUNCTIONAL DESCRIPTION The WM710xx is a non-volatile memory device 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 transponder IC contains ...
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MEMORY MAP WM710xx‟s memory is partitioned according to the logical and physical mapping shown in Table 1 below. Table 1: Memory Map DSPI Gen-2 Address Memory Bank 0x000 RESERVED 0x001 RESERVED 0x002 RESERVED 0x003 RESERVED 0x004 EPC 0x005 EPC 0x006 ...
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... USER GEN2 WM710XX MEMORY BANKS The RFID memory banks reside in Ramtron‟s non-volatile F-RAM memory. F-RAM brings many benefits to the WM710xx. The first benefit is the size of the memory itself – 16k-bit, most of which is available in the USER memory bank. F-RAM‟s impact on the Gen2 protocol is most dramatically seen when writing to WM710xx memory ...
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MaxArias Write Cycle SELECT QURY INTERROGATOR (385u) (240u) TAG EEPROM-based Write Cycle Figure 3. Gen2 Memory Write Cycle Comparison: F-RAM vs. EEPROM Memories RESERVED: KILL Password: The kill password provides a mechanism to permanently disable the WM710xx RFID from responding ...
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... PROTOCOL CONTROL WORD UMI XPC NT Numbering System Identifier NSI Type Extended Protocol Control User Memory identifier EPC Identifier Word Length Description ISO/IEC 15963 class-identifier Mask-Designer Identifier (MDID) – Ramtron International Tag model number 32-bit unique identifier 7 8 MDID[11: TMN[11:0] ID[31:16] ID[15:0] 0 NSI ...
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USER Memory Bank: The USER memory bank comprises two special-function control words, factory-reserved words, and up to 993 available memory locations. Refer to Table 1 for detail on the WM710xx memory structure. The USER memory bank may be completely locked ...
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TAG-TO-READER DATA ENCODING The WM710xx supports both encoding formats defined in the Gen2 standard: FM0 baseband (FM0) Miller modulation of a subcarrier (MMS) Data encoding is performed in the WM710xx as described in the Gen2 standard. A FM0 ...
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CONTROL/STATUS REGISTER Accessing the unique features of WM710xx is accomplished through the Control/Status register in F-RAM non-volatile memory. The register is located at physical address 0x016 or USER memory address 0x002. The Control/Status word register is organized as shown in ...
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Upon power up, WM710xx‟s control logic reads the Control/Status word out of memory and configures itself accordingly. User applications may change the Control Word as needed providing the register has not been permanently locked. The Control/Status word may be read ...
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Wrap Enable: Asserting the WRPEN control bit to a logic one enables the USER memory wrapping feature. The wrap enable feature allows the stored address pointer to wrap back to the factory-set initial stored address value of 0x006. In this ...
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Gen-2 Memory Working Stored Bank Address Pointer RESERVED EPC SERVICE SERVICE TID USER USER USER USER USER USER USER USER USER USER USER Figure 12. USER Memory Bank: Working Stored Address Register The syntax for an unaddressed write command ...
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Working Stored Gen-2 Memory Address Pointer Bank RESERVED EPC SERVICE SERVICE TID USER USER USER USER USER USER USER USER USER USER USER Figure 14. Single Unaddressed Write Cycle, AUTOINCR=1 Gen-2 Memory Working Stored Address Pointer Bank RESERVED ...
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INITIAL STORED ADDRESS The Initial Stored Address is a preset address pointer that is loaded into the Working Stored Address when a memory wrap occurs after an unaddressed write command is executed. A memory wrap only occurs if the WRPEN ...
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Gen-2 Working Stored Memory Bank Address Pointer RESERVED EPC SERVICE SERVICE TID USER USER USER USER USER USER USER USER USER USER Initial Stored Address USER USER USER USER USER USER USER USER … USER ...
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SUPPORTED COMMANDS The WM710xx supports the following Select, Inventory, and Access commands as described in the EPCglobal class 1 generation 2 UHF RFID descriptions of these commands. Select Query QueryAdjust QueryRep ACK NAK ...
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Working Stored Address register does not change for a BLOCKWRITE command – in the example shown, it remains at a value of 0x006. Working Stored Gen-2 Memory Address Pointer ...
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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 ...
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USER MEMORY BLOCK SIZE DEFINITION x000 BLK:0 BLK:0 x001 BLK:1 x002 BLK:2 BLK:1 x003 BLK:3 x004 BLK:4 BLK:2 x005 BLK:5 x006 BLK:6 BLK:3 x007 BLK:7 x008 BLK:8 BLK:4 x009 BLK:9 x00A BLK:10 BLK:5 x00B BLK:11 x00C BLK:12 BLK:6 x00D BLK:13 ...
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SPECIFICATION & COMPLIANCE SUMMARY TM Refer to EPC Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860MHz-960MHz Version 1.2.0 for all critical RFID specifications. Link to specifications page: http://www.epcglobalus.org/Standards/EPCglobalSpecifications/tabid/335/Default.aspx Rev. 1.3 Apr. 2011 WM710xx – Secure F-RAM ...
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... Legend: XXXXXXX= base part number (WM71004, WM71008, WM71016) LLLLLLLL= lot code R=revision, P=package (D=DFN), N=split designator (numeric) XXXXXXXX RIC=Ramtron Int‟l Corp, YY=year, WW=work week LLLLLLLL RPN Example: WM71004, “Green” UDFN-8 package, Lot 0411702, RICYYWW Rev B., Year 2010, Work Week 12 ...
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... UDFN with 4Kb memory WM71008-6-DSTR 8-pin UDFN with 8Kb memory WM71016-6-DSTR 8-pin UDFN with 16Kb memory Note: Contact Ramtron for other ordering options, i.e. bumped die. Rev. 1.3 Apr. 2011 WM710xx – Secure F-RAM with Gen-2 RFID Delivery & MOQ Tape & ...
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REVISION HISTORY Revision Date 0.1 12/12/2008 0.2 3/8/2010 1.0 3/12/2010 1.1 8/23/2010 1.2 9/7/2010 1.3 4/14/2011 Rev. 1.3 Apr. 2011 WM710xx – Secure F-RAM with Gen-2 RFID Summary Initial release. Documentation updates. Changed to Preliminary status. Changed read/write sensitivity specs. ...