MM5451 NSC [National Semiconductor], MM5451 Datasheet
MM5451
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MM5451 Summary of contents
Page 1
... N-channel metal-gate low threshold en- hancement mode and ion-implanted depletion mode devic- es They are available in 40-pin molded or cavity dual-in-line packages The MM5450 MM5451 is designed to drive com- mon anode-separate cathode LED displays A single pin controls the LED display brightness by setting a reference ...
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... Note 5 AC input waveform specification for test purpose t Note 6 Clock input rise and fall times must not exceed 300 ns Connection Diagrams Dual-In-Line Package Top View FIGURE 2a Order Number MM5450N MM5451N MM5450V or MM5451V Power Dissipation at Molded DIP Package Board Mount Molded DIP Package Socket Mount b a ...
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Connection Diagrams (Continued) Plastic Chip Carrier Top View Plastic Chip Carrier Top View 6136– 6136–14 ...
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... The START bit and the first clock return the chip to its nor- mal operation Figure 2 shows the pin-out of the MM5450 and MM5451 Bit 1 is the first bit following the start bit and it will appear on pin 18 A logical ‘‘1’’ at the input will turn on the appropriate ...
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Functional Description Typical Performance Characteristics TL F 6136– 6 FIGURE 5 Typical Applications FIGURE 8 Typical Application of Constant Current Brightness Control FIGURE 9 Brightness Control Varying the Duty Cycle (Continued) FIGURE 4 Input Data Format TL F 6136–7 FIGURE ...
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Typical Applications (Continued) Basic Electronically Tuned Radio System Duplexing 8 Digits with One MM5450 6136– 6136–12 ...
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... Physical Dimensions inches (millimeters) Molded Dual-In-Line Package (N) Order Number MM5450N or MM5451N NS Package Number N40A 7 ...
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... National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications inches (millimeters) (Continued) Plastic Chip Carrier (V) Order Number MM5450V or MM5451V NS Package Number V44A 2 A critical component is any component of a life ...