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PIC12F635-I/ST Datasheet(PDF) 190 Page - Microchip Technology |
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PIC12F635-I/ST Datasheet(HTML) 190 Page - Microchip Technology |
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190 / 234 page  PIC12F635/PIC16F636/639 DS41232D-page 188 © 2007 Microchip Technology Inc. AF14 TLFDATAR Rise time of LFDATA — 0.5 — μsVDD = 3.0V Time is measured from 10% to 90% of amplitude AF15 TLFDATAF Fall time of LFDATA — 0.5 — μsVDD = 3.0V Time is measured from 10% to 90% of amplitude AF16 TAGC AGC initialization time — 3.5* — ms Time required for AGC stabilization AF17 TPAGC High time after AGC settling time — 62.5 — μs Equivalent to two Internal clock cycle (FOSC) AF18 TSTAB AGC stabilization time plus high time (after AGC settling time) (TAGC +TPAGC) 4 — — ms AGC stabilization time AF19 TGAP Gap time after AGC settling time 200 — — μs Typically 1 TE AF20 TRDY Time from exiting Sleep or POR to being ready to receive signal —— 50* ms AF21 TPRES Minimum time AGC level must be held after receiving AGC Preserve command 5* — — ms AGC level must not change more than 10% during TPRES. AF22 FOSC Internal RC oscillator frequency (±10%) 28.8 32 35.2 kHz Internal clock trimmed at 32 kHz during test AF23 TINACT Inactivity timer time-out 14.4 16 17.6 ms 512 cycles of RC oscillator @ FOSC AF24 TALARM Alarm timer time-out 28.8 32 35.2 ms 1024 cycles of RC oscillator @ FOSC AF25 RLC LC Pin Input Impedance LCX, LCY, LCZ — 1* — MOhm Device in Standby mode AF26 CIN LC Pin Input Capacitance LCX, LCY, LCZ — 24 — pF LCCOM grounded. Vdd = 3.0V, FCARRIER = 125 kHz AF27 TE Time element of pulse 100 — — μs AF28 TOEH Minimum output enable filter high time OEH (Bits Config0<7:6>) 01 = 1 ms 10 = 2 ms 11 = 4 ms 00 = Filter Disabled 32 (~1ms) 64 (~2ms) 128 (~4ms) — — — — — — — — — clock count RC oscillator = FOSC Viewed from the pin input: (Note 1) AF29 TOEL Minimum output enable filter low time OEL (Bits Config0<5:4>) 00 = 1 ms 01 = 1 ms 10 = 2 ms 11 = 4 ms 32 (~1ms) 32 (~1ms) 64 (~2ms) 128 (~4ms) — — — — — — — — clock count RC oscillator = FOSC Viewed from the pin input: (Note 2) 15.11 AC Characteristics: Analog Front-End for PIC16F639 (Industrial) (Continued) AC CHARACTERISTICS Standard Operating Conditions (unless otherwise stated) Supply Voltage 2.0V ≤ VDD ≤ 3.6V Operating temperature -40°C ≤ TAMB ≤ +85°C for industrial LC Signal Input Sinusoidal 300 mVPP Carrier Frequency 125 kHz LCCOM connected to VSS Param No. Sym. Characteristic Min Typ† Max Units Conditions * Parameter is characterized but not tested. † Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. Note 1: Required output enable filter high time must account for input path analog delays (= TOEH - TDR + TDF). 2: Required output enable filter low time must account for input path analog delays (= TOEL + TDR - TDF). |
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