ib technology

16

Micro RWD EM4102 module dimensions and pinout

PINOUT DESCRIPTION

Pin Name

DIP No.

I/O Type

Buffer Type

Description

LED1

1

O

TTL

Red LED connection. 25ma max sink current

LED2

2

O

TTL

Green LED connection. 25ma max sink current

RESET

3

I

ST

Reset pin internally pulled high. Active low.

Normally not connected

BEEP

4

O

TTL

BEEP output pin (active LOW), 25ma max sink

current

OP3

5

O

TTL

Auxiliary output drive. 25ma max sink current.

OP2

6

O

TTL

Auxiliary output drive. 25ma max sink current.

GND

7

P

-

Ground reference for logic and analogue pins

-

8

-

-

Not connected

AN1

9

P

AN

Antenna connection. 1 (connected to antenna coil)

-

10

-

-

Not connected

-

11

-

-

Not connected

AN2

12

P

AN

Antenna connection 2 (connected to antenna coil)

GND

13

P

-

Ground reference for logic and analogue pins.

-

14

-

-

Not connected

-

15

-

-

Not connected

-

16

-

-

Not connected

-

17

-

-

Not connected

-

18

-

-

Not connected

OP1

19

O

TTL

Auxiliary output drive. 25ma max sink current.

OP0

20

O

TTL

Auxiliary output drive. 25ma max sink current.

VCC

21

P

-

+5v Positive supply

RX

22

I

TTL

Serial communication Receive line. 9600 baud, 8 bit,

1 stop, no parity

TX

23

O

TTL

Serial communication Transmit line

CTS

24

O

TTL

Serial communication CTS handshake. RX enabled

when CTS low and disabled when high.

(I/O = Input/Output, AN = Antenna output, P = Power, ST = Schmitt Trigger input, TTL = TTL logic I/O)

1

13

12

Micro

RWD

24

30.5 mm

18mm

Standard 0.1inch/ 2.54 mm pitch

Pins mounted to hybrid

flush with substrate.

PCB Row Spacing

18.5 mm

Unconnected pin pads