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LS7212N Datasheet(PDF) 7 Page - LSI Computer Systems |
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LS7212N Datasheet(HTML) 7 Page - LSI Computer Systems |
7 / 8 page FIGURE 9. PROGRAMMABLE ACCURATE REAL-TIME DELAY GENERATION 17 10 11 12 13 14 15 16 18 VDD WB0 WB1 WB2 WB3 WB4 WB5 WB6 WB7 1 2 3 4 10M A B TRIG XTLI 5 XTLO 6 PSCLS 7 RESET 8 9 OUT Vss OUTPUT +V S1 +V 470k ƒ 25pF 25pF TRIGGER IN +V 1s/1m 2s/2m 4s/4m 8s/8m 16s/16m 32s/32m 64s/64m 128s/128m NOTE : Crystal Frequency, ƒ = 32,768Hz Switch: S1 low: Delay increment = 1s; Maximum Delay = 255s S1 high: Delay increment = 1m; Maximum Delay = 255m LS7212N s = seconds m = minutes The information included herein is believed to be accurate and reliable. However, LSI Computer Systems, Inc. assumes no responsibilities for inaccuracies, nor for any infringements of patent rights of others which may result from its use. 7211N-052606-7 |
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