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24AA640-ESN Datasheet(PDF) 2 Page - Microchip Technology |
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24AA640-ESN Datasheet(HTML) 2 Page - Microchip Technology |
2 / 12 page 25AA640/25LC640/25C640 DS21223A-page 2 Preliminary © 1997 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* Vcc ...................................................................................7.0V All inputs and outputs w.r.t. Vss.................. -0.6V to Vcc+1.0V Storage temperature ....................................... -65˚C to 150˚C Ambient temperature under bias..................... -65˚C to 125˚C Soldering temperature of leads (10 seconds) ............. +300˚C ESD protection on all pins................................................. 4kV *Notice: Stresses above those listed under ‘Maximum ratings’ may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for an extended period of time may affect device reliability TABLE 1-1: PIN FUNCTION TABLE FIGURE 1-1: AC TEST CIRCUIT 1.2 AC Test Conditions Name Function CS Chip Select Input SO Serial Data Output SI Serial Data Input SCK Serial Clock Input WP Write Protect Pin VSS Ground VCC Supply Voltage HOLD Hold Input AC Waveform: VLO = 0.2V VHI = VCC - 0.2V (Note 1) VHI = 4.0V (Note 2) Timing Measurement Reference Level Input 0.5 VCC Output 0.5 VCC Note 1: For VCC ≤ 4.0V 2: For VCC > 4.0V VCC SO 100 pF 1.8 K 2.25 K TABLE 1-2: DC CHARACTERISTICS All parameters apply over the specified operating ranges unless otherwise noted. Commercial (C): Tamb = 0 °C to +70°C VCC = 1.8V to 5.5V Industrial (I): Tamb = -40 °C to +85°C VCC = 1.8V to 5.5V Automotive (E): Tamb = -40 °C to +125°C VCC = 4.5V to 5.5V (25C640 only) Parameter Symbol Min Max Units Test Conditions High level input voltage VIH1 2.0 VCC+1 V VCC ≥ 2.7V (Note) VIH2 0.7 VCC VCC+1 V VCC< 2.7V (Note) Low level input voltage VIL1 -0.3 0.8 V VCC ≥ 2.7V (Note) VIL2 -0.3 0.3 VCC V VCC < 2.7V (Note) Low level output voltage VOL — 0.4 V IOL = 2.1 mA VOL — 0.2 V IOL = 1.0 mA, VCC < 2.5V High level output voltage VOH VCC -0.5 — V IOH =-400 µA Input leakage current ILI -10 10 µA CS = VCC, VIN = VSS TO VCC Output leakage current ILO -10 10 µA CS = VCC, VOUT = VSS TO VCC Internal Capacitance (all inputs and outputs) CINT — 7 pF TAMB = 25˚C, CLK = 1.0 MHz, VCC = 5.0V (Note) Operating Current ICC Read — — 1 500 mA µA VCC = 5.5V; FCLK=3.0 MHz; SO = Open VCC = 2.5V; FCLK=2.0 MHz; SO = Open ICC Write — — 5 3 mA mA VCC= 5.5V VCC = 2.5V Standby Current ICCS — — 5 1 µA µA CS = Vcc = 5.5V, Inputs tied to VCC or VSS CS = Vcc = 2.5V, Inputs tied to VCC or VSS Note: This parameter is periodically sampled and not 100% tested. |
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