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PDF RF600T Data sheet ( Hoja de datos )
| Número de pieza | RF600T | |
| Descripción | Smart Com Radio Transceiver IC | |
| Fabricantes | rfsolutions | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RF600T (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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Smart Com Radio Transceiver IC
RF600T
• Enables Easy Radio Communications
• Connects directly to RF Module
• Simple CMOS/TTL Data Interface
• Performs all Data Encryption for Reliable Data Comms.
• Addressed Mode With Acknowledge
• Broadcast Mode
• Automatic Retry
•www.DataSheet4U.com Achieves Maximum Range From RF Modules
• Optional host Flow Control
• Two Telemetry I/O Lines (addressed mode only)
• Compatible With Most RF Modules
Typical Applications
• Wireless RS232
• Cable Replacement
• Alarm Systems
• Communications Systems
• Local Area Networking
Hardware Features
• 3.0 – 5.5V Operation. (2.0 – 5.5V optional)
• 190 Byte data Buffer
• ‘Manchester’ Modulation
• CRC Error Checking
• 18 pin DIP/SOIC Package
• 2 Digital Telemetry Lines (addressed mode only)
• Asynchronous Serial Host Interface
1 RxR
2 CTS
OUT2 18
OUT1 17
3 LEARN
OSC1 16
4 RTS
OSC2 15
5 GND RF600T Vcc 14
6 MODE
IN2 13
7 TxH
IN1 12
8 RxH
RxEN 11
9 TxR
TxEN 10
The RF600T provides a simple interface between TTL level asynchronous serial data sources and standard
RF modules (Transceiver, Transmitter or Receiver) with minimal interface required.
The RF600T performs all the necessary data manipulation and encryption required by the Radio module to
achieve a reliable radio link whilst providing a simple data interface to the users controller.
The device has been designed to obtain the maximum range from the Radio medium using automatic data
packet generation with ‘Manchester’ encoding and CRC based error checking. In addition, in addressed
mode, automatic retries ensure that the host is informed of successful or failed data packet delivery. The
RF600T uses control lines to handle the flow of data to and from the host, and incorporates a 190 byte data
buffer.
Part Number
RF600T
RF600T-SO
RF600T-EVAL
Description
Transceiver IC PDIP Package
Transceiver IC SMT Package
Evaluation Kit for Smart Radio Modules
Package
18pin PDIP
18pin SO
DS601-4
25th JUN 2004
©2004 Reg. No. 227 4001, ENGLAND
Page 1
1 page  
Smart Com Radio Transceiver IC
RF600T
be connected from Vcc to the learn pin, ensuring that the maximum current drawn by the LED (as given in
this data sheet) is not exceeded.
Data Buffering
The device contains a 190 byte data buffer which is used to either buffer host data prior to transmission
over the radio link or alternately to buffer data received over the radio link before it is transmitted to the
host. Since this is a shared buffer the device can only operate in a half duplex manner - that is at a given
time data can either be received from the host and then transmitted over the radio link or data can be
received over the radio link and sent to the host but these functions cannot occur at the same time. Once
a character has been received from the host or once the start of a radio data packet has been sensed the
www.DataSheet4U.comdevice will lock out the ‘other’ function until the first one has been completed.
Host Interface
The interface to the host device consists of the following signal and control lines:
TxH
Serial data from the host which is to be transmitted over the RF link. Idle mark ‘1’.
RxH
Serial data for the host which has been received over the RF link. Idle mark ‘1’.
CTS
Handshake line to the host. When ‘0’ tells the host that it is Clear To Send data to the RF600T for
transmission over the RF link.
RTS
Handshake line from the host. When ‘0’ tells the RF600T that the host is making a Request To
Send data to the host.
Host Communications
All host communications are carried out using the following asynchronous serial format.
8 data bits.
1 stop bit.
No parity.
The host baud rate is selected using the HBAUD option as described above.
Host Data Flow Control
Serial data from the host which is to be sent over the radio link is input at TTL level on the TxH pin. When
the device is ready to receive data, the CTS line from the device will be low and up to 190 data bytes will
be accepted and stored in the internal data buffer. When the buffer becomes full the CTS line will be taken
high and the host must then stop transmitting. In order to allow for host UART’s which have an output
FIFO buffer, a further 4 characters will be accepted after the CTS line has been asserted. In the event that
the flow of data characters is not contiguous and an idle period of 20 ms occurs in the data stream then
the CTS line will be asserted high to signify that the host should stop sending further data. In this case the
current buffer contents will make up the next data packet to be sent over the radio link.
Serial data which has been received over the radio link will be checked for correct Manchester coding and
CRC checksum (and address match if in addressed mode) before this data is transmitted at TTL level on
the RxH pin. Data flow to the host is controlled by the RTS line from the host. When this line is low, data in
DS601-4
25th JUN 2004
©2004 Reg. No. 227 4001, ENGLAND
Page 5
5 Page 
Smart Com Radio Transceiver IC
RF600T
Technical Specifications: Absolute Maximum Ratings
Item
Rating
Units
Supply voltage
-0.3 to 6.9
V
Input voltage
-0.3 to VDD + 0.3
V
Output voltage
-0.3 to VDD+ 0.3
V
Max output current
25 mA
Storage temperature
-55 to +125
°C (Note)
Lead soldering temp
300 °C (Note)
www.DataSheet4U.com ESD rating
4000
V
Note: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
Electrical Characteristics
Operating current (average)
Vdd = 2 - 3V
Vdd = 3 - 6.6V
High level Input voltage
Low level input voltage
High level output voltage
Low level output voltage
Output Pin Current rating
LED sink current
Min
0.55VDD
0.3
0.7VDD
Typical
0.3
0.7
-
5.0
Max
1.2
1.6
VDD+0.3
0.15VDD
0.08VDD
25
25
Unit
mA
V
V
V
V
mA
mA
DS601-4
25th JUN 2004
©2004 Reg. No. 227 4001, ENGLAND
Page 11
11 Page | ||
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| PDF Descargar | [ Datasheet RF600T.PDF ] | |
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