TP3155 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – TP3155 Time Slot Assignment Circuit

September 1993
TP3155 Time Slot Assignment Circuit
General Description
The TP3155 is a monolithic CMOS logic circuit designed to
generate transmit and receive frame synchronization pulses
for up to 8 COMBO^TM CODEC Filters Each frame sync
pulse may be independently assigned to a time slot in a
frame of up to 32 time slots Assignments are controlled by
loading in an 8-bit word via a simple serial interface port
This control interface is compatible with that used on the
TP3020 TP3021 and 2910 2911 CODECs enabling an
easy upgrade to COMBO CODEC Filters to be made
Features
Y _{Controls up to 8 COMBO CODEC Filters}
Y _{Independent transmit and receive time slot assignments}
Y _{8-channel unidirectional mode}
Y _{Up to 32 time slots per frame}
Y _{Serial control interface compatible with TP3020 TP3021}
CODECs
Y _{LS TTL and CMOS compatible inputs}
Y _{5 mW 5V operation}
Typical Application
TRI-STATE is a registered trademarks of National Semiconductor Corp
COMBOTM is a trademark of National Semiconductor Corp
C1995 National Semiconductor Corporation TL H 5118
TL H 5118 – 1
RRD-B30M115 Printed in U S A