cop472-3 National Semiconductor Corporation, cop472-3 Datasheet
cop472-3
Related parts for cop472-3
cop472-3 Summary of contents
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... The COP472-3 contains an on-chip oscil- lator and generates all the multi-level waveforms for back- planes and segment outputs on a triplex display One COP472-3 can drive 36 segments multiplexed digit display) Two COP472-3 devices can be used to- gether to drive 72 segments (3 x 24) which could ...
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Absolute Maximum Ratings Voltage pins Voltage at all other Pins b Operating Temperature Range DC Electrical Characteristics GND Parameter Power Supply Voltage V ...
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Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage Pins b Voltage at All Other Pins Operating ...
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... Dual-In-Line Package Top View Order Number COP472MW-3 or COP472N-3 See NS Package Number M20A or N20A FIGURE 4 Backplane and Segment Waveforms FIGURE 5 Typical Display Internal Connections http www national com Pin CS Chip select V Power supply (display voltage) DD GND Ground DI Serial data input SK Serial clock input ...
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... The fifth bit is not used The sixth and sev- enth bits program the COP472 stand alone LCD driv master or slave for cascading COP472-3’s BPC of the master is connected to BPA of each slave The fol- lowing table summarizes the function of bits six and seven ...
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... SP4 SP3 This sets the master COP472-3 to BPA as a normal backplane output and BPC as oscillator output Now both the chips start and run off the same oscillator 8 Turn CS high The chips are now synchronized and driving 8 digits of dis- play To load new data simply load each chip separately in ...
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... Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Molded DIP (M) Order Number COP472MW-3 NS Package Number M20B 7 http www national com ...
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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 20-Lead Molded DIP (N) Order Number COP472N-3 NS Package Number N20A 2 A critical component is any component of a life ...