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LM628 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM628 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
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3 / 24 page  Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Voltage at Any Pin with Respect to GND −0.3V to +7.0V Ambient Storage Temperature −65˚C to +150˚C Lead Temperature 28-pin Dual In-Line Package (Soldering, 4 sec.) 260˚C 24-pin Surface Mount Package (Soldering, 10 sec.) 300˚C Maximum Power Dissipation (T A ≤ 85˚C, (Note 2) 605 mW ESD Tolerance (C ZAP = 120 pF, RZAP = 1.5k) 2000V Operating Ratings Temperature Range −40˚C < T A < +85˚C Clock Frequency: LM628N-6, LM629N-6, LM629M-6 1.0 MHz < f CLK < 6.0 MHz LM628N-8, LM629N-8, LM629M-8 1.0 MHz < f CLK < 8.0 MHz V DD Range 4.5V < V DD < 5.5V DC Electrical Characteristics (V DD and TA per Operating Ratings; fCLK = 6 MHz) Symbol Parameter Conditions Tested Limits Units Min Max I DD Supply Current Outputs Open 110 mA INPUT VOLTAGES V IH Logic 1 Input Voltage 2.0 V V IL Logic 0 Input Voltage 0.8 V I IN Input Currents 0 ≤ V IN ≤ VDD −10 10 µA OUTPUT VOLTAGES V OH Logic 1 I OH = −1.6 mA 2.4 V V OL Logic 0 I OL = 1.6 mA 0.4 V I OUT TRI-STATE® Output Leakage Current 0 ≤ V OUT ≤ VDD −10 10 µA AC Electrical Characteristics (V DD and TA per Operating Ratings; fCLK = 6 MHz; CLOAD = 50 pF; Input Test Signal tr = tf = 10 ns) Timing Interval T# Tested Limits Units Min Max ENCODER AND INDEX TIMING (See Figure 2) Motor-Phase Pulse Width T1 µs Dwell-Time per State T2 µs Index Pulse Setup and Hold T3 0 µs (Relative to A and B Low) CLOCK AND RESET TIMING (See Figure 3) Clock Pulse Width LM628N-6, LM629N-6, LM629M-6 T4 78 ns LM628N-8, LM629N-8, LM629M-8 T4 57 ns Clock Period LM628N-6, LM629N-6, LM629M-6 T5 166 ns LM628N-8, LM629N-8, LM629M-8 T5 125 ns Reset Pulse Width T6 µs www.national.com 3 |
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