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Part: PEB2046-N
Category:
Description: MTSS (Memory Time Switch Small)
Company: Infineon Technologies Corporation
Datasheet: Download PEB2046-N datasheet File size : 1109 kB
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Memory Time Switch Small (MTSS)
PEB 2046
General Description The MTSS PEB 2046 is a monolithic CMOS device which has the ability to connect any of the 256 PCM channels of eight incoming PCM lines to any of the 256 PCM channels of eight output lines. The input information of a complete frame is stored in the speech memory SM. The incoming 256 channels of 8 bits each are written in sequence into fixed positions in the SM. This is controlled by the input counter in the timing control block with an 8-kHz repetition rate. For output, the connection memory (CM) is read in sequence. Each location in CM points to a location in the speech memory. The byte in this speech memory location is read into the current output time-slot. The read access of the CM is controlled by the output counter which also resides in the timing control block. Thus the CM needs to be programmed beforehand for the desired connection. The CM address corresponds to one particular output time-slot and line number. The contents of this CM-address point to a particular input time-slot and line number (now resident in the SM).
Type PEB 2046-N PEB 2046-P Features
Package P-LCC-44-1 (SMD) P-DIP-40-1
· Time/space switch for 2.048-kbit/s PCM systems · Switching of up to 256 incoming PCM channels to up to 256 outgoing PCM channels · Eight input and eight output PCM lines · Configurable for a 4096- and 8192-kHz device clock · Tristate function for further expansion and tandem operation · 8-bit µP-interface · Single +5-V power supply · Advanced low power CMOS technology
N0
IN1
IN2
IN3
IN4
IN5
IN6 OUT6
DB7B0 A0 RD WR CS µP Interface
MOD STA IAR Connection M emory C M I
I n p u t Buffer
CGR
S p e e c h Memory SM
T i m i n g Control
O u t p u t Buffer
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
SP
CLK
ITB00604
Block Diagram
Siemens Aktiengesellschaft
1
OUT7
IN7
Others parts begin by pe
PE-1 PE-2 PE-3 PE-4 PE-5 PE-6 PE-7 PE-8
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