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1555L Datasheet(PDF) 3 Page - Linear Technology |
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1555L Datasheet(HTML) 3 Page - Linear Technology |
3 / 8 page LTC1555L 3 PARAMETER CONDITIONS MIN TYP MAX UNITS Controller Inputs/Outputs (DVCC = 3V) Input Current (IIH /IIL) M0, M1, M2, RIN, CIN q –100 100 nA Input Current (IIH /IIL) DDRV q –5 5 µA High Level Input Current (IIH) DATA q –20 20 µA Low Level Input Current (IIL) DATA q 1mA High Input Voltage Threshold (VIH) M0, M1, M2, RIN, CIN, DDRV q 0.7 × DVCC V DATA q DVCC – 0.6 V Low Input Voltage Threshold (VIL) M0, M1, M2, RIN, CIN, DDRV q 0.2 × DVCC V DATA q 0.4 V High Level Output Voltage (VOH) DATA Source Current = 20 µA I/O = VCC q 0.7 × DVCC V Low Level Output Voltage (VOL) DATA Sink Current = –200 µA I/O = 0V (Note 3) q 0.4 V DATA Pull-Up Resistance Between DATA and DVCC q 13 20 30 k Ω DATA Output Rise/Fall Time DATA Loaded with 30pF q 1.3 2 µs SIM Inputs/Outputs (VCC = 3V or 5V) I/O High Input Voltage Threshold (VIH)IIH(MAX) = ±20µA q 0.7 × VCC V I/O Low Input Voltage Threshold (VIL)IIL(MAX) = 1mA q 0.4 V High Level Output Voltage (VOH) I/O, Source Current = 20 µA DATA or DDRV = DVCC q 0.8 × VCC V Low Level Output Voltage (VOL) I/O, Sink Current = –1mA DATA or DDRV = 0V (Note 3) q 0.4 V High Level Output Voltage (VOH) RST, CLK Source Current = 20 µA q 0.9 × VCC V Low Level Output Voltage (VOL) RST, CLK Sink Current = –200 µA q 0.4 V I/O Pull-Up Resistance Between I/O and VCC q 6.5 10 14 k Ω SIM Timing Parameters (DVCC = 3V, VCC = 5V) CLK Rise/Fall Time CLK Loaded with 30pF, VCC = 3V, or 5V q 18 ns RST, I/O Rise/Fall Time RST, I/O Loaded with 30pF q 1 µs CLK Frequency CLK Loaded with 30pF q 5 MHz VCC Turn-On Time COUT = 2.2µF, IVCC = 0 0.5 ms VCC Discharge Time to 1V IVCC = 0, VCC = 5V, COUT = 2.2µF 0.5 ms Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC1555LEGN is guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: The DATA and I/O pull-down drivers must also sink current sourced by the internal pull-up resistor. The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (VIN = 2.6V to 6V, DVCC = 1.425V to 4.4V, controller digital pins tied to DVCC, SIM digital pins floating, C1 = 0.1µF, COUT = 2.2µF unless otherwise noted) ELECTRICAL CHARACTERISTICS |
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