WM72016-NBSD-DS Ramtron, WM72016-NBSD-DS Datasheet

RFID Transponder 16Kbit Secure FRAM Serial & Gen2 Access

WM72016-NBSD-DS

Manufacturer Part Number

WM72016-NBSD-DS

Description

RFID Transponder 16Kbit Secure FRAM Serial & Gen2 Access

Manufacturer

Ramtron

Datasheet

1.WM72016-NBSD-DS.pdf (2 pages)

Specifications of WM72016-NBSD-DS

Memory Size

16 KB

Organization

1024 x 16

Interface

Serial

Operating Temperature Range

- 40 C to + 85 C

Mounting Style

SMD/SMT

Package / Case

UDFN-8

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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WM72016

16-Kbit Secure F-RAM Memory with Gen-2 RFID Access and

Serial Port Direct Memory Access

Description

The WM72016 is an RFID transponder IC with nonvolatile memory

employing an advanced 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 WM72016 write operations are zero power; there

is no power or speed penalty for executing writes into the WM72016,

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.

Secondary Serial Interface

The WM72016 employs a secondary serial interface bus. It is

specified to operate at speeds up to 640kHz. This serial bus provides

communication to a host microcontroller for the purpose of reading

and writing the memory map. The interface uses a total of four pins:

chip select, clock, and two bidirectional data pins. The serial protocol

is controlled by op-codes. These op-codes specify the commands to the

device. This secondary interface can be utilized creatively to implement

an ultra-low power, RFID protocol based radio interface embedded in

a MCU based systems such as battery powered instruments, Smart

Meters, portable medical instrumentation, etc. (Figure 1).

Figure 1: Application example— zero power meter interface

using wireless F-RAM with serial port direct memory interface

Ramtron International Corporation

P r o d u c t

MaxArias

16kbit F-RAM

Gen-2 RFID

Access

Serial DMA

ISO18000-6c 860–960MHz

Chip Select / Interrupt

B r i e f

Data 0

Data 1

Clock

1850 Ramtron Drive, Colorado Springs, CO 80921

Meter

MCU

Wireless Solutions by Ramtron

Features

16-Kilobit Nonvolatile Ferroelectric RAM

• Organized as 1024 x 16 bits

• Virtually unlimited read/write endurance (> 1E14)

• 20-year data retention

• Symmetrical read/write operation

• Advanced high-reliability ferroelectric process

• Global UHF Frequency range (860MHz—960MHz)

Interface and Security Features

• EPC Class-1 Generation-2 (ISO18000-6C) RFID compliant interface

• 192-bit memory: 96-bit electronic product code™ (EPC), 32-bit access

• 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,

• Up to 640kbps and 128kbps read and write transmission, respectively

Custom Features

• Stored address pointer to improve data write speed

• Stored address pointer lock

Ultra Low Power Symmetric Operation

• Memory read/write sensitivity: −6dBm, typical

Industry Standard Configurations

• Industrial temperature −40°C to +85°C

• 8-pin UDFN (-G)

• Bumped wafers or tape and reel die

• ISO-18000-6C compliant transponder antenna inlay

(revision 1.2.0)

password, 32-bit KILL password, 32-bit TID memory

(factory programmed and locked)

ASK demodulation

719-481-7000 or 800-545-3726

www.ramtron.com

Related parts for WM72016-NBSD-DS

WM72016-NBSD-DS Summary of contents

Page 1

... EEPROM and other nonvolatile memories. Unlike EEPROM’s, the WM72016 write operations are zero power; there is no power or speed penalty for executing writes into the WM72016, 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 ...

Page 2

... WM72016 16-Kbit Secure F-RAM Memory with Gen-2 RFID Access and Serial Port Direct Memory Access Figure 2: UDFN 8-pin package (top view, PCB layout) Ser _clk ANT ANT+ Ser _dat1 2 7 Ser _dat0 Ser _CS Table 1: Pin configuration and description Pin Name ...

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