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Part Number: MM54240
Description: The MM54240 is a monolithic MOS integrated circuit utilizing N-channel low-threshold, enhancement mode...
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MM54240
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DataSheet
General Description
MM54240 General Description
The MM54240 is a monolithic MOS integrated circuit utilizing N-channel low-threshold, enhancement mode and ionimplanted depletion mode devices. The circuit is designed for processor-type remote control applications. The data transmission consists of a pulse width modulated serial data stream of 18 bits. This stream consists of 7 address bits, 1 command bit, 8 data bits, 1 parity bit and 1 dummy bit in that order.
The MM54240 can be operated in two modes; namely "master'' and "slave''. The master interfaces to a processor bus, and is capable of polling and controlling 128 slave circuits. The slave circuits are interfaced to remote data sources and/or data destinations.
MM54240 Maximum Ratings
Voltage on Any Pin
with Respect to VSS ....................................-0.5V to +12.0V
Operating Temperature................................ -40 to +85
Storage Temperature................................. -65 to +150
Lead Temperature (Soldering, 10 seconds)................ 300
with Respect to VSS ....................................-0.5V to +12.0V
Operating Temperature................................ -40 to +85
Storage Temperature................................. -65 to +150
Lead Temperature (Soldering, 10 seconds)................ 300
MM54240 Features
Supply voltage range4.75V to 11.5V single supply
Low quiescent current5.0 mA maximum
On-chip oscillator based on inexpensive R-C components
Pulse width modulation techniques minimize error and maximize frequency tolerance
Mode input for either master or slave operations
Chip select (CS) input in the master mode
Selectable output port options in the slave mode
Transmit/receive control output (CS) in the slave mode
Low quiescent current5.0 mA maximum
On-chip oscillator based on inexpensive R-C components
Pulse width modulation techniques minimize error and maximize frequency tolerance
Mode input for either master or slave operations
Chip select (CS) input in the master mode
Selectable output port options in the slave mode
Transmit/receive control output (CS) in the slave mode
MM54240 Typical Application
The MM54240 finds application in transmitting data to and receiving data from remote A-D/D-A, remote microprocessor units, remote digital transducer or remote data peripheral devices.
MM54240
PDF/DataSheet Download
- Datasheet: MM54240
- File Size: 192345 KB
- Manufacturer: NSC [National Semiconductor]
- Click here to Download
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