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SP213CT Datasheet(PDF) 9 Page - Sipex Corporation |
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SP213CT Datasheet(HTML) 9 Page - Sipex Corporation |
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9 / 16 page  9 Date:05/26/2005 +5V High-Speed RS232 Transceivers © Copyright 2005 Sipex Corporation computer to power up the microprocessor and the SP2XXB/SP213 drivers. After the supply voltage to the SP2XXB/SP213 reaches +5.0V, the SHUTDOWN pin can be disabled, taking the SP2XXB/SP213 out of the shutdown mode. All receivers that are active during shutdown maintain 500mV (typ.) of hysteresis. A typical application of this function would be where a modem is interfaced to a computer in a power–down mode. The ring indicator signal from the modem could be passed through an active receiver in the SP2XXB/SP213 that is itself in the shutdown mode. The ring indicator signal would propagate through the SP2XXB/ SP213 to the power management circuitry of the Figure 6. Wake–Up Timing +5V 0V ENABLE DISABLE SD ROUT DATA VALID +5V 0V ROUT +5V 0V ROUT tWAIT t0 (POWERUP) ENABLE DISABLE SD POWER UP WITH SD ACTIVE (Charge pump in shutdown mode) POWER UP WITH SD DISABLED (Charge pump in active mode) t0 (POWERUP) tENABLE DATA VALID SD DATA VALID DATA VALID DATA VALID EXERCISING WAKE–UP FEATURE t0 (POWERUP) tENABLE tENABLE tENABLE tWAIT DISABLE DISABLE ENABLE tWAIT = 2ms typical, 3ms maximum tENABLE = 1ms typical, 2ms maximum VCC = +5V ±10%; TA = 25°C |
Similar Part No. - SP213CT |
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Similar Description - SP213CT |
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