S5T8701 Datasheet, PDF (1/70 Pages) Samsung semiconductor – FLEX ROAMING DECODER II

FLEX ^TM ROAMING DECODER II
S5T8701
INTRODUCTION
This FLEX^TM Roaming Decoder II date sheet describes the operation of the
S5T8701.
The S5T8701 simplifies implementation of a FLEX^TM paging device by interfacing
with any of several off-the-shelf paging receivers and any of several off-the-shelf
host microcontroller/microprocessors. Its primary function is to process information
received and demodulated from a FLEX radio paging channel, select messages
addressed to the paging device and communicate the message information to the
host. The S5T8701 also operates the paging receiver in an efficient power
consumption mode and enables the host to operate in a low power mode when
monitoring a signal channel for message information.
32-LQFP-0707
FEATURES
• FLEX^TM paging protocol decoder
• 16 programmable user address words
• 16 fixed temporary addresses
• 16 operator messaging addresses
• 1600,3200,and 6400bps(bits per second) decoding
• Any-phase or single-phase decoding
• Uses standard Serial Peripheral Interface (SPI) in slave mode
• Allow low current STOP mode operation of host processor
• Highly programmable receiver control
• Real time clock time base
• FLEX fragmentation and group messaging support
• Real time clock over-the-air update support
• Compatible with synthesized receivers
• SSID and NID Roaming support
• Low Battery Indication(External detector)
• 28 used pins (32-pin package standard)
• Backward compatible to the standard and roaming FLEX decoder ICs
• Internal demodulator and data slicer
• Improved battery savings via partial correlation and intermittent receiver clock
• Full support for revision 1.9 of the FLEX protocol
• 32-pin LQFP package
• Supply voltage: 1.8 to 3.6V
• Operating Frequency: 76.8kHz or 160kHz
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