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WM72016 Datasheet(PDF) 2 Page - Ramtron International Corporation

Part # WM72016
Description  16Kbit Secure F-RAM Memory with Gen-2 RFID Access & Serial Port Direct Memory Access
PDF  32 Pages
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Manufacturer  RAMTRON [Ramtron International Corporation]
Direct Link  http://www.ramtron.com
Logo RAMTRON - Ramtron International Corporation

WM72016 Datasheet(HTML) 2 Page - Ramtron International Corporation

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WM72016 – Secure F-RAM with Gen-2 RFID and Serial Port
Rev. 1.4
May 2011
Page 2 of 32
PIN CONFIGURATION (UDFN PACKAGE)
Top View
(PCB Layout)
8
7
6
5
1
2
3
4
Ser_clk
Ser_dat1
Ser_dat0
Ser_CS
ANT-
ANT+
Vddr
Vddraw
3.0 mm × 3.0 mm body, 0.65 mm pad pitch
PIN DESCRIPTION
Pin Name
Pin Number
Type
Description
ANT+, ANT-
7, 8
Input
RFID Antenna.
Connect to external RFID antenna terminals.
Connect ANT- to external RFID antenna terminal, also acts as
ground.
Ser_clk
1
Input
Serial interface clock
Ser_dat1,
Ser_dat0
2, 3
I/O
Serial interface bi-directional data
Ser_CS
4
I/O
Serial interface bi-directional chip select/interrupt
Vddraw
5
PWR
Power supply input pin. DC supply (2.1V to 3.0V)
Vddr
6
PWR
Power supply output pin. This supply is internally generated via
the RF field. The Vddr and Vddraw pins are tied together for most
applications.
Contact the factory for other applications such as
battery assisted systems.



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