28140 Parallax Inc, 28140 Datasheet - Page 9

• Manufacturer Part Number: 28140
• Description: READER MODULE RFID
• Manufacturer: Parallax Inc

Specifications of 28140

• Rf Type: Read Only
• Frequency: 125kHz
• Features: Single 5V Power Supply
• Package / Case: Module
• Product: Microcontroller Accessories
• Data Bus Width: 8 bit
• Clock Speed: 125 KHz
• Interface Type: USB
• Operating Supply Voltage: 5.5 V
• Board Size: 46.99 mm x 69.22 mm x 21.84 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

' -----[ Revision History ]------------------------------------------------
' -----[ I/O Definitions ]-------------------------------------------------
Enable
RX
Spkr
Latch
' -----[ Constants ]-------------------------------------------------------
#SELECT $STAMP
#ENDSELECT
SevenBit
Inverted
Open
Baud
#SELECT $STAMP
#ENDSELECT
Copyright © Parallax Inc.
#CASE BS2, BS2E, BS2PE
#CASE BS2SX, BS2P
#CASE BS2PX
#CASE BS2, BS2E
#CASE BS2SX
#CASE BS2P
#CASE BS2PE
#CASE BS2Px
T1200
T2400
T4800
T9600
T19K2
TMidi
T38K4
T1200
T2400
T4800
T9600
T19K2
TMidi
T38K4
T1200
T2400
T4800
T9600
T19K2
TMidi
T38K4
TmAdj
FrAdj
TmAdj
FrAdj
TmAdj
FrAdj
TmAdj
FrAdj
TmAdj
FrAdj
PIN
PIN
PIN
PIN
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
CON
0
1
2
3
813
396
188
84
32
12
6
2063
1021
500
240
110
60
45
3313
1646
813
396
188
108
84
$2000
$4000
$8000
T2400
$100
$100
$280
$066
$3C5
$044
$100
$0AA
$607
$2A
RFID Card Reader Serial & USB (#28140 / 28340)
' low = reader on
' serial from reader
' speaker output
' lock/latch control
' x 1.0 (time adjust)
' x 1.0 (freq adjust)
' x 2.5
' x 0.4
' x 3.77
' x 0.265
' x 1.0
' x 0.665
' x 6.03
' x 0.166
v2.1 8/28/2008 Page 9 of 11