W55MID50 Datasheet, PDF (4/10 Pages) Winbond – WINBOND MFID READER

W55MID50 Data Sheet
1.2 W55MID50 Pin Description
Symbol
D3
D2
D1
D0
XIN
XOUT
VSS
CMD
CLK
VDD
RX_VDD
RX_VSS
ENV
RESET
TagIn
COIL
TX_VSS
TX_VDD
PAD
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
I/O
Functional Description
O
O
O
O
I
O
GND
I/O
I
Power
Power
GND
I
I
O
O
GND
Power
Data output #3
Data output #2
Data output #1
Data output #0
Connect to external 13.56MHz oscillator
Connect to external 13.56MHz oscillator
Digital power return path
R/W configuration register
Command R-W/ Read data clock
Power path
Power path of Rx
Power return path of Rx
Envelope detector input
Reset
Indication of tag arrival
PA output to connect with PCB antenna
Power return path of PA
Power path of PA
Winbond Electronics Corp.
4
Revision: A3
Publish Date: 2003/3/24