WM710xx – Secure F-RAM with Gen-2 RFID

Rev. 1.4

May 2011

Page 19 of 24

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 state retention for S1, S2, S3, and SL State flags. State flag S0 has no persistence

and will always return to state „A‟ upon a power cycle.

ELECTRICAL SPECIFICATIONS

Symbol

Description

Ratings

Voltage on ANT+ with respect to ANT-

-1.0V to +4.5V

Storage Temperature

-55C to + 125C

Operating Temperature

-40

Lead Temperature (Soldering, 10 seconds)

260 C

Electrostatic Discharge Voltage

500V

1kV

50V

ME

Memory Endurance: Read or Write or Erase

1x10

14

RF Exposure

+10dBm

(800 ~ 1000 MHz)

Package Moisture Sensitivity Level

MSL-2

Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating

only, and the functional operation of the device at these or any other conditions above those listed in the operational section of this

specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.

Symbol

Parameter

Min

Typ

Max

Units

Notes

Read Sensitivity

-6

dBm

Write Sensitivity

-6

dBm

640

Kbits/s

1

160

Kbits/s

1

Power-on time

1.0

1.5

ms



Change in Modulator Reflection

Coefficient

TBD

TBD

63 – j199

Ohms

2

Note:

1.

Actual read & write speeds are constrained by the EPC Class 1 Gen2 data communication standard.

2.