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ST7282 Datasheet(PDF) 4 Page - STMicroelectronics |
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ST7282 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 23 page ST7282A5 - ST7282B5 - ROM FROM EPROM Family Issuer Ref. Chrono March 26, 1997 Previous Ref Edition ST7 PG-RO 97115 7282A5B5 Target C Page 4/23 1.2.3 Electrical Characteristics The values given in the specifications of dedicated functions are generally not applicable for chips. There- fore, only the limits listed below are valid for the product. T = -40 ... +85°C, V DD - VSS = 5V unless otherwise specified. PARAMETER SYMBOL CONDITION MIN TYP MAX UNIT Supply voltage VDD 4.5 - 5.5 V Supply current Run Mode IDD fOSC=8.55MHz no output load -10 20 mA Supply current Wait Mode IDD fOSC=8.55MHz WD, Timer, LCD active -3 5 mA Supply current slow wait mode IDD no output load - 0.7 2 mA Supply current halt mode IDD no output load - - 100 µA Supply current Reset Mode IDD VRESET=VSS f=8.55MHz -10 15 mA Display voltage VLCD VDD -7 V Supply voltage differences (VDD, VDDP, VDDA) (VSS, VSSP, VSSA) VD -- 50 mV OSCILLATOR: Input/output cap Cin, Cout Oscillation frequency 1) Built up time 2) fOSC tBU VDD = 4.5V VDD=5.0V C1=C2=22pF 8.55 - 8.55 8 9.00 8.55 20 pF MHz ms RESET: Input current 3) Input current 4) Input current 5) Input voltage high Input voltage low -IR IR IR VR VR Crystal VR=VSS VR=VDD VR=VDD - - - 0.7VDD +50 +10 - - - +100 +20 1 - 0.2VDD µA µA mA V V POWER-ON RESET Supply rise time Supply recovery time 6) Trigger level on Trigger level off tr trec Vtlon Vtloff 10%-90% .01 10 1.4 - - - .- - 10 - - 3 ms ms V V RDS FILTER: Center frequency 3dB Bandwith Gain Attenuation Input impedance Load impedance MPX input signal fc BW G A RI RL VIN Vin = 3mVRMS 57 KHz, Vin = 3mVRMS ∆f = ±4 KHz f = 38 KHz f = 67 KHz 56.5 2.5 18 18 50 35 100 1 170 57 3 20 22 80 50 160 - 250 57.5 3.5 22 - - - 200 - 600 KHz KHz dB dB dB dB K Ω M Ω mVRMS |
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