ICM7231BFIPL Intersil Corporation, ICM7231BFIPL Datasheet
ICM7231BFIPL
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ICM7231BFIPL Summary of contents
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... Low-Power Shutdown Mode Retains Data With 5 W Typical Power Consumption at 5V • Direct Interface to High-Speed Microprocessors Ordering Information PART NUMBER TEMP. RANGE ( ICM7231BFIJL - ICM7231BFIPL - ICM7232BFIPL - ICM7232CRIPL - NOTE: All versions intended for triplexed LCD displays. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. ...
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Pinouts ICM7231BF (PDIP, CERDIP) TOP VIEW DISP BP1 3 BP2 4 BP3 ...
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Functional Block Diagrams SEGMENT LINE DRIVERS 3 WIDE OUTPUT LATCHES 9 WIDE DATA DECODER DATA INPUT EN LATCHES AN2 BD1 BD3 AN1 BD0 BD2 DATA INPUTS NOTE: See Figure 13 for display segment ...
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Functional Block Diagrams D10 SEGMENT LINE DRIVERS 3 WIDE OUTPUT LATCHES 9 WIDE DATA DECODER AN1 AN2 BD0 BD1 BD2 BD3 SHIFT REGISTER SHIFTS RIGHT TO LEFT ON RISING EDGE OF DATA ...
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Absolute Maximum Ratings Supply Voltage ( 6. ...
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Table of Features TYPE NUMBER OUTPUT CODE ICM7231BF Code B ICM7232AF Hexadecimal ICM7232BF Code B ICM7232CR Code B Terminal Definitions TERMINAL PIN NO. DESCRIPTION ICM7231 PARALLEL INPUT NUMERIC DISPLAY AN1 30 Annunciator 1 Control Bit AN2 31 Annunciator 2 Control ...
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Timing Diagrams CS INPUT DATA ADDRESS INPUT t CI DATA CLOCK 1 2 INPUT (PER BIT OF DATA) AN1 DATA DATA INPUT VALID DATA ACCEPTED OUTPUT t WLL t WP WRITE INPUT RESETS SHIFT REGISTER AND ...
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... Figure 4 shows the connection diagram for a typical 7-segment display with two annunciators such as would be used with an ICM7231 or ICM7232 numeric display driver. Figure 5 shows the voltage waveforms of the common lines MAXCMOS is a registered trademark of Intersil Corporation. ICM7231, ICM7232 BD0 BD1 BD2 BD3 ...
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BP1 BP2 BP3 SEGMENT LINE ALL OFF a SEGMENT OFF OFF ALL ON NOTES High with Respect to Segment. ...
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Figure 8 shows the curve of contrast versus applied RMS volt- age for a liquid crystal material tailored for V 1 typical value for / multiplexed displays in calculators. Note 3 that the RMS OFF voltage V /3 PEAK “threshold” ...
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OPEN 200k 2 V DISP 10nF ICM7231 ICM7232 FIGURE 10. SIMPLE DISPLAY VOLTAGE ADJUSTMENT Figure 11A shows another method of setting up a display voltage using five silicon diodes in series. These diodes, 1N914 or equivalent, will each have a ...
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DATA CLOCK Input signal, and when the correct number of bits has been shifted into the shift register (8 in the ICM7232), the DATA ACCEPTED Output goes low. Following this, a low-going pulse at the WRITE input will trigger the ...
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TABLE 2. ADDRESS DECODING (ICM7231 AND ICM7232) CODE INPUT ICM7232 ONLY ...
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Typical Applications PERIOD OVER RANGE BCD INPUT A ICM7226A FUNCTION INPUT NOTE: The annunciators show function and the decimal points indicate the range of the current operation. the system can be efficiently battery operated. FIGURE 15. ...
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Typical Applications (Continued ICM7231AF AND ICM7231BF FIGURE 16. “FORWARD” PIN ORIENTATION AND DISPLAY CONNECTIONS D10 D9 D8 SELECT NO FORWARD PCB TRACES UNDER ...
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... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...