WM710xx – Secure F-RAM with Gen-2 RFID
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
A
BSOLUTE MAXIMUM RATINGS
Symbol
TSTG
TOP
Description
Storage Temperature
Operating Temperature
Ratings
-55°C to + 125°C
-40oC to +85oC
TLEAD
Lead Temperature (Soldering, 10 seconds)
Electrostatic Discharge Voltage
260° C
- Human Body Model (JEDEC Std JESD22-A114-B)
- Charged Device Model (JEDEC Std JESD22-C101-A)
- Machine Model (JEDEC Std JESD22-A115-A)
Memory Endurance: Read or Write or Erase
TBD
TBD
VESD
TBD
ME
1x1014
+10dBm
RFexp
RF Exposure
(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.
AC Operating Characteristics (TA = -40° C to + 85° C unless otherwise specified)
Symbol Parameter
Min
Typ
Max
Units
dBm
dBm
Kbits/s
Kbits/s
ms
Notes
SR
SW
Fr
Read Sensitivity
-6
-6
Write Sensitivity
Max Sustainable Read Rate @ SR
Max Sustainable Write Rate @ Sw
Power-on time
Change in Modulator Reflection
Coefficient
640
160
2
Fw
tST
∆ Γ
TBD
TBD
ZIN
Input Impedance @ fIN=915MHz
63 – j199
Ohms
Rev. 1.2
Sept. 2010
Page 13 of 17
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
