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A1365LKTTN-2-T Datasheet(PDF) 26 Page - Allegro MicroSystems |
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A1365LKTTN-2-T Datasheet(HTML) 26 Page - Allegro MicroSystems |
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26 / 32 page 
Low-Noise, High-Precision, Programmable Linear Hall-Effect Sensor IC With High-Bandwidth (120 kHz) Analog Output and Integrated Fault Comparator A1365 26 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Serial Interface Reference Required timing parameters for successful serial communication with A1365 device are given in table below. Required Serial Interface Timing Parameters Characteristics Symbol Note Min. Typ. Max. Unit Input/Output Signal Timing Access Code Timeout tACC Customer Access Code should be fully entered in less than tACC, measured from when VCC crosses VUVLOH. – – 8 ms Bit Rate tBITR Defined by the input message bit rate sent from the external controller 32 – 80 kbps Bit Time tBIT Data bit pulse width at 70 kbps 13.6 14.3 15 µs Bit Time Error errTBIT Deviation in tBIT during one command frame –11 – + 11 % Volatile Memory Write Delay tWRITE Required delay from the trailing edge of certain Write command frames to the leading edge of a following command frame 2 × tBIT – – µs Non-Volatile Memory Write Delay tWRITE(E) Required delay from the trailing edge of the second EEPROM Programming pulse to the leading edge of a following command frame 2 × tBIT – – µs Read Acknowledge Delay tREAD Required delay from the trailing edge of a Read Acknowledge frame to the leading edge of a following command frame 2 × tBIT – – µs Read Delay tstart_read Delay from the trailing edge of a Read command frame to the leading edge of the Read Acknowledge frame 25 μs – 0.25 × tBIT 50 μs –0.25 × tBIT 150 μs – 0.25 × tBIT µs EEPROM Programming Pulse EEPROM Programming Pulse Setup Time tsPULSE(E) Delay from last edge of write command to start of EEPROM programming pulse 40 – – μs Input/Output Signal Voltage Manchester Code High Voltage VMAN(H) Applied to VCC line 5.1 – – V Read from VOUT line VCC – 0.2 V – – V Manchester Code Low Voltage VMAN(L) Applied to VCC line – – 3.9 V Read from VOUT line – – 0.2 V Manchester Level to VCC Delay tMAN_VCC – – 15 µs |
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