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ICM7211A

Intersil Corporation
Part Number ICM7211A
Manufacturer Intersil Corporation
Description 4-Digit LCD Display Driver
Published Apr 10, 2006
Detailed Description ICM7211A August 2001 4-Digit, LCD Display Driver Description The ICM7211A (LCD) device constitutes a family of non-mult...
Datasheet PDF File ICM7211A PDF File

ICM7211A
ICM7211A

Overview
ICM7211A August 2001 4-Digit, LCD Display Driver Description The ICM7211A (LCD) device constitutes a family of non-multiplexed four-digit seven-segment CMOS display decoderdrivers.
The ICM7211A devices are configured to drive conventional LCD displays by providing a complete RC oscillator, divider chain, backplane driver, and 28 segment outputs.
This device is available with multiplexed or microprocessor input configurations.
The multiplexed versions provide four data inputs and four Digit Select inputs.
This configuration is suitable for interfacing with multiplexed BCD or binary output devices, such as the ICL7135.
The microprocessor versions provide data input latches and Digit Address latches under control of high-speed Chip Select inputs.
These devices simplify the task of implementing a cost-effective alphanumeric seven-segment display for microprocessor systems, without requiring extensive ROM or CPU time for decoding and display updating.
The ICM7211A provides the “Code B” output code, i.
e.
, 0-9, dash, E, H, L, P, blank, but will correctly decode true BCD to seven-segment decimal outputs.
Features • Four Digit Non-Multiplexed 7 Segment LCD Display Outputs with Backplane Driver • Complete Onboard RC Oscillator to Generate Backplane Frequency • Backplane Input/Output Allows Simple Synchronization of Slave-Devices to a Master • ICM7211A Devices Provide Separate Digit Select Inputs to Accept Multiplexed BCD Input (Pinout and Functionally Compatible with Siliconix DF411) • ICM7211AM Devices Provide Data and Digit Address Latches Controlled by Chip Select Inputs to Provide a Direct High Speed Processor Interface • Decodes Binary to Code B (0-9, Dash, E, H, L, P, Blank) • Available in Surface Mount Package Ordering Information PART NUMBER ICM7211AlPL ICM7211AMlPL ICM7211AMlM44 DISPLAY TYPE LCD LCD LCD DISPLAY DECODING Code B Code B Code B INPUT INTERFACING Multiplexed Microprocessor Microprocessor DISPLAY DRIVE TYPE Direct Drive Direct Drive Direct Drive TEMP.
R...


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