| Part Number | MC14543B |
| Manufacturer | ON Semiconductor |
| Title | BCD-to-Seven Segment Latch/Decoder/Driver |
| Description | MC14543B BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals The MC14543B BCD−to−seven segment latch/decoder/driver is designed for use... |
| Features |
• Latch Storage of Code • Blanking Input • Readout Blanking on All Illegal Input Combinations • Direct LED (Common Anode or Cathode) Driving Capability • Supply Voltage Range = 3.0 V to 18 V • Capable of Driving 2 Low−power TTL Loads, 1 Low−power Schottky TTL Load or 2 HTL Loads Over the Rated Tempe... |
| File Size | 184.51KB |
| Datasheet |
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MC145436 : .
MC145436A : VDD Positive Power Supply (PDIP, SOG — Pin 4) The digital supply pin, which is connected to the positive side of the power supply. VSS Ground (PDIP — Pin 8, SOG — Pin 9) Ground return pin is typically connected to the system ground. D1, D2, D4, D8 Data Output (PDIP — Pins 2, 1, 14, 13; SOG — Pins 2, 1, 16, 15) These digital outputs provide the hexadecimal codes corresponding to the detected digit. The digital outputs become valid after a tone pair has been detected and are cleared when a valid pause is timed. See Table 1 for hexadecimal codes.These output pins are high impedance when the enable pin is at logic 0. ENB Enable (PDIP, SOG — Pin 3) Outputs D1, D2, D4, D8 are enabled when ENB is .
MC14543B : MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC14543B BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals The MC14543B BCD–to–seven segment latch/decoder/driver is designed for use with liquid crystal readouts, and is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit provides the functions of a 4–bit storage latch and an 8421 BCD–to–seven segment decoder and driver. The device has the capability to invert the logic levels of the output combination. The phase (Ph), blanking (BI), and latch disable (LD) inputs are used to reverse the truth table phase, blank the display, and store a BCD code, respectively. For liquid crystal (LC) readouts, a square wave is ap.