SP3244ECY-L Exar Corporation, SP3244ECY-L Datasheet
SP3244ECY-L
Specifications of SP3244ECY-L
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SP3244ECY-L Summary of contents
Page 1
... SP3244E supports serial data rates of 250kbps minimum under full load and while maintaining slew rates of less than 30V/μs. SP3245E is capable of high speed communication 1Mbps. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP3244E-SP3245E C2+ ...
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... Device power supply pin (3.0V to 5.5V). V+ Regulated +5.5V output generated by the charge pump. C+ Positive terminal of the voltage doubler charge pump capacitor connection. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com FUNCTION ® Plus. Do not leave 2 PIN ASSIgNmENTS PIN NUMBER ...
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... Logic Input Leakage Current Logic Input Hysteresis Receiver Outputs and STATUS Output Receiver Output Voltage Low Receiver Output Voltage High Receiver Output Leakage Current Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com AbSOLUTE mAxImUm RATINgS SOIC-28, SSOP-28, TSSOP-28, QFN-32, +0.3V CC ...
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... STATUS Output Low Threshold to STATUS High t Threshold to STATUS Low Transition to t online Drivers Enabled Last Transition to t offline Drivers Disabled Note 1: Characterized, not 100% tested Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com ELECTRICAL CHARACTERISTICS TEST CONDITIONS 5.0V ...
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... Driver Skew Receiver Propagation t rphl Delay Receiver Output Enable t rzh Time Receiver Output Disable t rzh Time Receiver Skew Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com = AMB MIN MAX TEST CONDITIONS R = 3kΩ 000pF. One l l transmitter switching ...
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... Transmitter Output Voltage ( 500 1000 1500 2000 2500 3000 3500 Load Capacitiance (pF) Transmitter Output vs. Load Capacitance Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS 3 2.5 2 1.5 1 Tin to Rout Propagation Delay (us) 0 500 1000 70 95 Transmitter Input to Receiver Output Propaga- tion Delay vs ...
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... SP3244 Charge Pump Levels Out of Shutdown SP3244 Charge Pump Levels Into Shutdown SP3244 Charge Pump Power On Time - Vcc=3.3V, T=85ºC Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS SP3244 Waveforms for 1Mbps Clock Rate RL=3kΩ CL=1000pF SP3244 Waveforms for 1Mbps Clock Rate RL=3kΩ ...
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... SP3244 Waveforms for 250kpbs Clock Rate RL=3kΩ CL=1000pF SP3244 Waveforms for 250kpbs Clock Rate RL=3kΩ CL=4700pF Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS SP3244 Charge Pump Power On TimeVcc=3.3V, T=27C SP2345 Waveforms for 1Mbps Clock Rate - RL=3k, CL=250pF SP3244 C2+ Charge Pump Waveforms - Vcc=3 ...
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... SP3244 C2+ Charge Pump Waveforms - Vcc=5.0V, All channels switching Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS 9 SP3244E_SP3245E_00_2509 ...
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... The slew rate of the driver output on the SP3244E is internally limited to a maximum of 30V/μs in order to meet the EIA standards Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com (EIA RS-232D 2..7, Paragraph 5). The slew rate of SP3245E is not limited to enable higher speed data transfers ...
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... V Phases 1 and 3: Store/Double Double charge from C1 onto C2 now charged to -2xVcc + Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com + Patented 5,306,954 (Sipex, inc Charge Pump Phases DESCRIPTION Phase 2 – Vss transfer from C2 to C4. Meanwhile C1 is charged to Vcc + Vss Phase 4 V transfer from ...
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... C and C2, therefore capacitors should be mounted close to the IC and have low ESR (equivalent series resistance). Inexpensive Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com surface mount ceramic capacitors (such as are widely used for power-supply decoupling) are ideal for use on the charge pump. The charge ...
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... Connecting STATUS output to drive both ONLINE and SHUTDOWN will wake the trans- ceiver if any receiver inputs are driven greater Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com than ±2.7V magnitude and put the transceiver into Forced Shutdown mode if all receiver inputs are floating or driven to ground. ± ...
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... Auto On-line Plus STATUS (Off-Line When Idle) ® Auto On-line STATUS STATUS (Wake On Cable) ® Auto On-line STATUS STATUS (Auto Shutoff) Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com Idle inputs |RxIN| > ± 2.7 V (RxIN & TxIN active X idle > ...
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... Indeterminate 0.3V Invalid Level: STATUS = 0 -0.3V Indeterminate -2.7V Valid RS232 Level: STATUS = 1 Receiver Positive and Negative Threshold versus STATUS Output Signal Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SHUTDOWN Edge T_IN Detect Edge R_IN Detect ONLINE ® ...
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... STATUS t TSTL OUTPUT t STH 0 Vcc OUTPUT 0 V+ Vcc 0 V- Auto On-Line Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com AUTO ON-LINE® PLUS t OFFLINE t OFFLINE t ONLINE ® Plus Timing Diagram t (=30µs typ.) stl t (=0.4µs typ.) sth t (=30s typ ...
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... OUT 18 2 TTL/CMOS OUTPUTS 17 R OUT 3 R OUT OUT SHUTDOWN 23 ONLINE Online Control 21 To µP Supervisor STATUS GND Circuit Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com TYPICAL OPERATING CIRCUIT SP3244E SP3245E OUT OUT RS-232 10 2 OUTPUTS T OUT 11 ...
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... T OUT OUT OUT SP3244/SP3245 TOP VIEW OUT T2 7 OUT T3 8 OUT Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com C1 GND 25 24 C1- 23 ONLINE SHUTDOWN 22 STATUS OUT OUT OUT 2 R OUT OUT OUT 5 24 GND 23 C1- 22 ONLINE QFN-32 21 SHUTDOWN ...
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... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP3244E_SP3245E_00_2509 9 32 PIN QFN ...
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... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP3244E_SP3245E_00_2509 20 28 PIN TSSOP ...
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... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP3244E_SP3245E_00_2509 2 20 PIN SSOP ...
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... Part number SP3244ECA-L SP3244ECY-L SP3244EEA-L SP3244EEY-L SP3244EER-L SP3245ECA-L SP3245ECY-L SP3245EEA-L SP3245EEY-L SP3245EER-L Available in lead free packaging. Available in Tape and Reel. To order add "/TR" suffix to part number, Example: SP3244ECA-L= Standard; SP3244ECA-L/TR =Tape and Reel DATE REVISION DESCRIPTION 0-09-06 M Legacy Sipex Datasheet 2-5-09 ...