| Programmable Digital Delay Timer... (14 Pins) |
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LS7210, LS7210-S
Last Updated: 06/16/06 |
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Generates delays from milliseconds to "years" |
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Delays programmed by 5 Binary Weighted inputs and time-base |
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External clock or RC oscillator sources time-base |
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Four Operating Modes |
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DUAL DELAY
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DELAYED OPERATE
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ONE-SHOT
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DELAYED RELEASE
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4.75V to 15V operation |
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| Programmable Digital Delay Timer.. (18 Pins) |
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LS7211, LS7211-S; LS7212, LS7212-S
Last Updated: 11/05/03 |
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LS7211N, LS7211N-S; LS7212N, LS7212N-S NEW!
Last Updated: 07/20/09 |
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LS7211N, LS7212N backward compatible to LS7211, LS7212 |
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Generates delays from 100ns to "days" |
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Time Base is External Clock or Oscillator: RC (LS7211); Crystal (LS7212) |
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8 Binary-Weighted Delay Bits |
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3 Selectable Prescalers |
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Four Operating Modes |
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Reset for Delay Abort |
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3V (4V, LS7211 & LS7212) to 18V Operation |
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Programmable frequency division |
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Real Time delays from 50/60Hz (LS7211); watch crystal (LS7212) |
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| Programmable Digital Delay Timer.. (14 Pins) |
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LS7213R, LS7213R-S
Last Updated: 08/23/11 |
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Produces real-time delays from 10kHz-1kHz time-base range |
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Eight time delay ranges:
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0.1 - 1:
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Seconds; Minutes; Hours |
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1 - 10:
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Seconds; Minutes; Hours |
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10 - 100:
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Seconds; Minutes |
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RC Oscillator generates time-base |
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Four operating modes |
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Reset for Delay Abort |
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Complementary outputs |
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Delay-in-Progress indicator output |
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3V to 5.5V Operation |
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| Programmable Digital Delay Timer.. (20 Pins) |
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LS7215, LS7215-S; LS7216, LS7216-S NEW!
Last Updated: 07/20/09 |
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LS7215 and LS7216 are extended feature versions of LS7211N and S7212, respectively.
Extended Features:
- Latches for loading weighting bits from an 8-bit Bus
- Open-Drain Output for direct drive of a Relay coil returned to chip VDD or to a voltage as high as 110V using a single external transistor
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| Light-Activated Programmable Timer.. (8 Pins) |
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LS7217, LS7217-S |
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Interface directly to photo-resistor |
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Programmable duration selection:
4 hours, 6 hours, 8 hours, dusk-to-dawn |
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Shunt regulator |
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50Hz / 60Hz time base selection |
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Relay driver output |
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6.5V +/- 0.75V operation |
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Applications include lighting timer for low-voltage landscape lighting |
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