Plessey MS2002EXP
MS2002 is an n-channel MOS LSI integrated circuit providing digital switching for 256 channels in PCM systems. The device is unidirectional in operation and is capable of switching data from any incoming channel to any outgoing channel. The DSM is designed to be easily expandable to provide a greater switching capacity.| Part No. | MS2002EXP |
|---|---|
| Datasheet | MS2002EXP Download |
| Manufacturer |  Plessey |
| Description | DIGITAL SWITCH |
| Buy | Stock & Price |
FEATURES
● Single 5V Supply● TTL Compatible
● Interfaces Directly with European Standard CCITT 32 Channel 2.048Mb/ s Format
● 256 Input/256 Output Channels
● Inputs and Outputs can be either Serial or Parallel
● Open Drain Outputs Allow Easy Expansion
● Only One System Clock Required with One Frame Synchronisation Pulse APPLICATION DG28
● Circuit Switched PCM or Data Systems Fig.1 Pin connections - top view PCM DI0.7 CONTROL INPUT WORDCI1 3 LBSs P1 COUNTER 256 x 8 SPEECH STORE ADDRESS DECODE 256 x (8 + 1) CONTROL STORE P2 P3 PCM 000.7 Fig.2 Block diagram of DSM CONTROL OUTPUT C01 p-s PARALLEL TO SERIES CONVERSION S-P SERIES TO PARALLEL CONVERSION MPX MULTIPLEX LSB LEAST SIGNIFICANT BIT 59 MS2002 RECOMMENDED OPERATING CONDITIONS Characteristic Symbol Min. Value Typ. Supply voltage High input voltage low input voltage OIP pull up resistor CBB capacitor Voo 4.75 5 VIH 2.4 VIL -0.5 Rpu 950 1 Max. 5.25 Voo 0.8 Units Conditions V V V 0 +1 Schottky load nF
ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise stated): Voo = +5V.
