LM2240N National Semiconductor, LM2240N Datasheet
LM2240N
Related parts for LM2240N
LM2240N Summary of contents
Page 1
... TTL and CMOS compatible outputs Y Timing directly proportional to RC time constant Y High accuracy Y External sync and modulation capability Y Wide supply voltage range Y Excellent supply voltage rejection Y 16-Lead Molded DIP TL H 10837 – 1 Top View See NS Package Number N16E Order Number LM2240N August 1990 RRD-B30M115 Printed ...
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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 Storage Temperature Range Molded DIP Lead Temperature Molded DIP (Soldering 10 Sec ) Power Dissipation (Note 2) Junction Temperature LM2240 Electrical Characteristics Symbol ...
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Electrical Characteristics Symbol Characteristic TRIGGER RESET CONTROLS V Trigger Threshold TR I Trigger Current TR Z Trigger Impedance T t Trigger Response Time RSPT ...
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Typical Performance Characteristics Supply Current vs Supply Voltage in Reset Condition Minimum Trigger and Reset Pulse Widths vs Trigger and Reset Amplitude Normalized Change in Time-Base Period vs Modulation Voltage Recommended Range of Timing Component Time-Base Period Values (Note 7) ...
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Functional Description V Pin GND Pin 9 e FIGURE 1 Logic Symbol When power is applied to the LM2240 with no trigger or reset inputs activated the circuit starts with all outputs HIGH Application of a positive ...
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Circuit Controls Counter Outputs (O O Pins1 thru 8) 0 128 The binary counter outputs are buffered open collector type stages as shown in the block diagram Each output is capa- ble of sinking ...
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Circuit Controls (Continued) V Pin GND Pin 9 e FIGURE 6 Low Power Operation of Cascaded Timers Monostable Operation Precision Timing In precision timing applications the LM2240 is used in its monostable or self-resetting mode The generalized ...
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Astable Operation (Continued) V Pin GND Pin 9 e FIGURE 7 Cascaded Operation for Long Delays Binary Pattern Generation In astable operation as shown in Figures 8 and 9 the out- put of the LM2240 appears as ...
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Astable Operation (Continued) V Pin GND Pin 9 e FIGURE 11 Astable Operation Examples of Output 10837 – 14 ...
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... Hong Kong Ltd 49) 0-180-530 85 86 13th Floor Straight Block a Ocean Centre 5 Canton Rd 49) 0-180-530 85 85 Tsimshatsui Kowloon a Tel ( 49) 0-180-532 78 32 Hong Kong a 49) 0-180-532 93 58 Tel (852) 2737-1600 a Tel ( 49) 0-180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 ...