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RF600T Datasheet Preview

RF600T Datasheet

Smart Com Radio Transceiver

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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




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RF600T Datasheet Preview

RF600T Datasheet

Smart Com Radio Transceiver

No Preview Available !

Smart Com Radio Transceiver IC
RF600T
Pin Descriptions
Pin
Number
1
Name
RxR
2
CTS
LOOP
www.DataSheet4U.com
3
4
5
6
7
8
9
LEARN
RTS
GND
MODE
TxH
RxH
TxR
HBAUD
10
TXEN
RFBAUD
11 RXEN
12 IN1
13 IN2
14 Vcc
15 OSC2
16 OSC1
17 OUT1
18 OUT2
Type
In
Out
In
In/Out
In
In
In
In
Out
Out
In
Out
In
Out
In
In
In
Out
In
Out
Out
Description
Received data from RF module.
Dual Function:
1. Clear to send data (to host) when low.
2. Enables loopback mode when low.
In addressed mode: Used to initiate ‘address learn’ and erase
functions. Drives indicator LED.
Request to send data (from host) when low.
Connect to 0 volts.
Device mode, addressed when high, broadcast when low.
Serial data from the host, to be sent on the RF path.
Serial data from the RF path to be sent to the host.
Dual Function:
1. Transmit data to the RF module.
2. Host baud rate select. See notes below.
Dual Function:
1. Transmit enable (low) for the RF module.
2. RF baud rate select. See notes below.
Receive enable (low) for the RF module.
Telemetry logic input #1. (addressed mode only)
Telemetry logic input #2. (addressed mode only)
Positive supply voltage connection.
Connect to 4MHz, 3 terminal resonator.
Connect to 4MHz, 3 terminal resonator.
Telemetry logic output #1. (addressed mode only)
Telemetry logic output #2. (addressed mode only)
Operating Modes
The device is capable of operation in one of two modes, either broadcast or addressed. The following description
describes the features of these mode and assumes two identical system nodes ‘A’ and ‘B’ each consisting of an
RF600T and its associated radio transceiver module.
The RF600T must be configured before power up for either the broadcast or addressed mode of operation by
means of the MODE pin (6). Note that for security, broadcast nodes will not receive data from addressed nodes.
Broadcast mode.
This mode allows a host generated data block from node ‘A’ to be transmitted and received by any number of
other nodes. This data is received and verified (for correct Manchester coding and CRC) by the other nodes before
being output to their host devices. Alternately, in the same way the other nodes can send data to node ‘A’. Note
that although any node can initiate a transfer, only one direction of transfer can be active at a given time.
Correct reception of a data packet is not acknowledged and the host nodes have the responsibility of ensuring that
data transfers occur as required by operating some form of message protocol over the half duplex data link.
Addressed mode
This mode allows a host generated data block from node ‘A’ to be transmitted and for the data frame to be
addressed to one other network node – in this case we assume node ‘B’. When the data is received by node ‘B’ it
is verified for correct Manchester coding, CRC and for address match and then an acknowledge message is
transmitted back to node ‘A’. Node ‘A’ then outputs a confirmation to the host in the form of the ASCII character ‘C’
DS601-4
25th JUN 2004
©2004 Reg. No. 227 4001, ENGLAND
Page 2


Part Number RF600T
Description Smart Com Radio Transceiver
Maker rfsolutions
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RF600T Datasheet PDF






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