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SN65555 Datasheet(PDF) 1 Page - Texas Instruments |
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SN65555 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page SLDS031A – APRIL 1985 – REVISED APRIL 1993 Copyright 1993, Texas Instruments Incorporated 4 –1 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Each Device Drives 32 Electrodes 90-V Output Voltage Swing Capability Using Ramped Supply 15-mA Output Source and Sink Current Capability High-Speed Serially-Shifted Data Input Totem-Pole Outputs Latches on All Driver Outputs description The SN65555, SN75555, SN65556, and SN75556 are monolithic BIDFET† integrated circuits designed to drive the column electrodes of an electroluminescent display. The SN65556 and SN75556 output sequence is reversed from the SN65555 and SN75555 for ease in printed-circuit- board layout. The devices consist of a 32-bit shift register, 32 latches, and 32 output AND gates. Serial data is entered into the shift register on the low-to-high transition of CLOCK. When high, LATCH ENABLE transfers the shift register contents to the outputs of the 32 latches. When OUTPUT ENABLE is high, all Q outputs are enabled. Data must be loaded into the latches and OUTPUT ENABLE must be high before supply voltage VCC2 is ramped up. Serial data output from the shift register can be used to cascade shift registers. This output is not affected by LATCH ENABLE or OUTPUT ENABLE. The SN65555 and SN65556 are characterized for operation from –40 C to 85 C. The SN75555 and SN75556 are characterized for operation from 0 C to 70 C. † BIDFET – Bipolar, double-diffused, N-channel and P-channel MOS transistors on same chip. This is a patented process. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 Q17 Q16 Q15 Q14 Q13 Q12 Q11 Q10 Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 SERIAL OUT CLOCK GND Q18 Q19 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 OUTPUT ENABLE DATA IN LATCH ENABLE VCC1 VCC2 SN75555 ... N PACKAGE (TOP VIEW) Q23 Q24 Q25 Q26 Q27 Q28 Q29 Q30 Q31 Q32 NC 39 38 37 36 35 34 33 32 31 30 29 18 19 7 8 9 10 11 12 13 14 15 16 17 Q11 Q10 Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 20 21 22 23 SN65555, SN75555 ... FN PACKAGE (TOP VIEW) 5 4 3 21 6 44 42 41 40 43 24 25 26 27 28 NC – No internal connection |
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