28440 Parallax Inc, 28440 Datasheet - Page 7

• Manufacturer Part Number: 28440
• Description: RFID Modules & Development Tools RFID Read/Write Serial Module
• Manufacturer: Parallax Inc

Specifications of 28440

• Operating Current: 10 mA
• Operating Voltage: 5 V
• Product: RFID Readers
• Wireless Frequency: 125 KHz
• Dimensions: 3.25 in x 2.45 in
• Operating Temperature Range: - 40 C to + 85 C
• For Use With/related Products: EM4x50
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADDR_Serial
cannot be changed by the user.
ADDR_DeviceID
32-bit value contains a family code, version code, reserved/unused bits, and a checksum value. It cannot
be changed by the user.
Further details of the EM4x50 tag can be found at:
Electrical Characteristics
At V
Absolute Maximum Ratings
NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device at those or any other
conditions above those indicated in the operation listings of this specification is not implied. Exposure to
maximum rating conditions for extended periods may affect device reliability.
Copyright © Parallax Inc.
Supply Voltage
Supply Current, Idle
Supply Current, Active
Input LOW voltage
Input HIGH voltage
Output LOW voltage
Output HIGH voltage
CC
= +5.0V and T
Parameter
www.emmicroelectronic.com/Products.asp?IdProduct=159
is a unique, read-only serial number with one of 2
Voltage on any pin with respect to V
is a read-only value used to identify the specific tag family (for example, EM4150). The
Operating Temperature
A
Storage Temperature
Ground Voltage (V
Supply Voltage (V
= 25ºC unless otherwise noted
Condition
Symbol
I
V
V
V
V
IDLE
I
V
CC
CC
OH
OL
IH
IL
RFID Read/Write Module, Serial (#28440)
CC
SS
)
)
+4.5V <= V
+4.5V <= V
Test Conditions
SS
V
V
CC
CC
= +4.5V
= +4.5V
---
---
---
CC
CC
+5.5V
+5.5V
32
, or 4,294,967,296, possible values. It
V
cc
Min.
4.5
2.0
---
---
---
---
- 0.7
Specification
-55ºC to +125ºC
-40ºC to +85ºC
+4.5V to +5.5V
-0.3V to +7.0V
v1.0 6/29/2010 Page 7 of 10
Typ.
108
Value
5.0
9.4
---
---
---
---
0V
Max.
200
5.5
0.8
0.6
---
---
---
Unit
mA
mA
V
V
V
V
V