ICM7243 Intersil Corporation, ICM7243 Datasheet
ICM7243
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ICM7243 Summary of contents
Page 1
... Data Sheet 8-Character, Microprocessor- Compatible, LED Display Decoder Driver The ICM7243 is an 8-character, alphanumeric display driver and controller which provides all the circuitry required to interface a microprocessor or digital system to a 14-segment or 16-segment display primarily intended for use in microprocessor systems, where it minimizes hardware and software overhead ...
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... CHAR 8 18 CHAR 7 19 CHAR 6 20 ICM7243A (16-SEGMENT CHARACTER) (MQFP) TOP VIEW ...
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... Functional Block Diagram DATA INPUT (NOTE MODE D SEL A0/SEN A1/CLR MUX A2/DISP FULL OSC/OFF NOTE: 1. ICM7243A has only one CS and no CS. ICM7243B has 15 Segments. 3 ICM7243 ICM7243 DATA DATA D0 D LATCHES MEMORY CLR CL CL ADR ONE ...
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... Input Capacitance Output Capacitance NOTES Sequential mode WR high must be ≥ For design reference only, not tested. 4 ICM7243 ICM7243 Thermal Information Thermal Resistance (Typical, Note 1) +0. -0.3V PDIP Package . . . . . . . . . . . . . . . . . . . DD SS MQFP Package . . . . . . . . . . . . . . . . . . ...
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... DISPLAY FULL FIGURE 2. SEQUENTIAL ACCESS MODE TIMING (MODE = 1) INTERNAL INTER-CHARACTER BLANKING SIGNAL CHAR 1 CHAR 2 CHAR 3 CHAR 4 CHARACTERS DRIVE SIGNALS CHAR 5 CHAR 6 CHAR 7 CHAR 8 FIGURE 3. DISPLAY CHARACTERS MULTIPLEX TIMING DIAGRAM 5 ICM7243 ICM7243 VALID WPI WRITE DATA VALID FIGURE 1 ...
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... 7), (32 - 40) CHARacter 21 ICM7243 ICM7243 5.0V 4. FIGURE 5. CHARACTER CURRENT vs OUPUT VOLTAGE Six-Bit ASCll Data input pins (active high). Chip Select from µP address decoder, etc. WRite pulse input pin (active low). For an active high write pulse, CS can be used, and WR can be used as CS ...
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... SEG SEG SEG SEG SEG MODE (SA/RA ICM7243A D1 A0/SEN A1/CLR A2/DISP FULL OSC/OFF D5 CHAR CHAR CHAR CHAR ...
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... FULL CS, BIT BUS + SEN ICM7243B DISP CS FULL CLR CHAR SEG 8 CHARACTERS 8 CHARACTERS CHAR SEG CLR CS ICM7243B DISP SEN FULL ETC. CS, + SEN ETC. ICM7243B DISP CS FULL CLR CHAR SEG 8 CHARACTERS October 28, 2005 FN3162.3 ...
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... CHAR +5V SEN DISP FULL +5V MODE DATA BUS 6 WR, (CS) CS, (WR) FIRST 8 CHARACTERS NOTE: 17 for ICM7243A, 15 for ICM7243B. FIGURE 8. MULTICHARACTER DISPLAY USING SEQUENTIAL ACCESS MODE +5V +5V 100Ω 1mA 2N2219 SEG ICM7243 14Ω (100mA CHAR 14mA R = 4Ω 2N6034 ON GND GND FIGURE 9A ...
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... Display Font and Segment Assignments D5 FIGURE 11. ICM7243A 16-SEGMENT CHARACTER FONT WITH DECIMAL POINT 10 ICM7243 ICM7243 8 CHARACTERS ICM7243A/B ICM7243A BIT BUS ...
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... NOTE: Segments a and d appear as 2 segments each, but both halves are driven together. FIGURE 12. ICM7243B 14-SEGMENT CHARACTER FONT WITH DECIMAL POINT FIGURE 13. SEGMENT AND CHARACTER DRIVERS OUTPUT CIRCUIT 11 ICM7243 ICM7243 (Continued ...
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... The 6 bits read from the Data Memory are decoded in the ROM to the 17 (15 for ICM7243B) segment signals, which drive the SEGment outputs. Both CHARacter and SEGment outputs are disabled during WR operations (with SEN high and DISPlay FULL Low for Sequential Access mode) ...
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... Dambar protrusions shall not exceed 0.010 inch (0.25mm the maximum number of terminal positions. 10. Corner leads (1, N, N/2 and N for E8.3, E16.3, E18.3, E28.3, E42.6 will have a B1 dimension of 0.030 - 0.045 inch (0.76 - 1.14mm). 13 ICM7243 ICM7243 E40.6 40 LEAD DUAL-IN-LINE PLASTIC PACKAGE SYMBOL E A2 ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 14 ICM7243 ICM7243 Q44.10x10 44 LEAD METRIC PLASTIC QUAD FLATPACK PACKAGE -D- SYMBOL ...