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ICM7245 Datasheet(PDF) 1 Page - Intersil Corporation |
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ICM7245 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 13 page 1 8-Character, 16-Segment, Microprocessor Compatible, LED Display Decoder Driver ICM7245 The ICM7245 is an 8-character, alphanumeric display driver and controller which provides all the circuitry required to interface a microprocessor or digital system to a 16-segment display with internal pull-up resistors. It is primarily intended for use in microprocessor systems, where it minimizes hardware and software overhead. Incorporated on-chip are a 64-character ASClI decoder, 8x6 memory, high power character and segment drivers, and the multiplex scan circuitry. 6-bit ASCll data to be displayed is written into the memory directly from the microprocessor data bus. Data location depends upon the selection of either Sequential (MODE = 1) or Random access mode (MODE = 0). In the Sequential Access mode the first entry is stored in the lowest location and displayed in the “left-most” character position. Each subsequent entry is automatically stored in the next higher location and displayed to the immediate “right” of the previous entry. A DISPlay FULL signal is provided after 8 entries; this signal can be used for cascading devices together. A CLR pin is provided to clear the memory and reset the location counter. The Random Access mode allows the processor to select the memory address and display digit for each input word. The character multiplex scan runs whenever data is not being entered. It scans the memory and CHARacter drivers, and ensures that the decoding from memory to display is done in the proper sequence. Intercharacter blanking is provided to avoid display ghosting. Features • Single supply +3.3V operation • 16-Segment fonts with decimal point • Up to 8 character display driver • Has internal pull-up resistors of 136Ω Typical • Microprocessor compatible • Directly drives LED common cathode displays • Cascadable without additional hardware • Standby feature turns display off; puts chip in low power mode • Sequential entry or random entry of data into display • Character and segment drivers, All MUX scan circuitry, 8x6 static memory and 64-character ASCll font generator included on-chip • Pb-free (RoHS compliant) Ordering Information PART NUMBER (Note 2) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. # ICM7245AIM44Z ICM7245 AIM44Z -25°C to +85°C 44 Ld MQFP Q44.10x10 ICM7245AIM44ZT (Note 1) ICM7245 AIM44Z -25°C to +85°C 44 Ld MQFP (Tape and Reel) Q44.10x10 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ICM7245. For more information on MSL, please see tech brief TB363. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2013. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. October 29, 2013 FN8587.0 |
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