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ES51929 Datasheet(PDF) 2 Page - Cyrustek corporation |
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ES51929 Datasheet(HTML) 2 Page - Cyrustek corporation |
2 / 25 page Ver 1.2 2 12/09/07 ES51929 6000 Counts Smart DMM Pin Assignment OHMC2 26 OHMC1 27 PWRSEL 28 VRH 29 VR 30 SGND 31 ADP 32 VA+ 33 VA- 34 NC 36 VR1 35 CA- 37 CA+ 38 R9K 39 R1K 40 SLEEP 41 BUZIN 42 APOSEL 43 BUZOUT 44 ACEN 45 NC 46 NC 47 NC 48 nF_OPT 49 ZERO 50 SEG11 76 SEG10 77 NC 78 NCV_EN 79 SEG09 80 SEG08 81 SEG07 82 SEG06 83 SEG05 84 SEG04 85 SEG03 86 SEG02 87 SEG01 88 OSC2 89 OSC1 90 BKSEL 91 CESEL 92 C+ 93 C- 94 V- 95 V- 96 V+ 97 V+ 98 DGND 99 AGND 100 ES51929 Pin Description Pin No Symbol Type Description 1 AGND P Analog ground. 2 LBAT I Low battery configuration. If 3V battery is used, connect it to DGND. The default low-battery threshold voltage is –2.3V. If 9V battery is used, the low battery enunciator is displayed when the voltage of this pin is less than VRH (-1.2V) 3 CREF+ I/O Positive connection for reference capacitor. 4 CREF- I/O Negative connection for reference capacitor. 5 CINT O Integrator output. Connect to integral capacitor 6 CAZ I Auto-zero capacitor connection. 7 BUFF O Buffer output pin. Connect to integral resistor 8 RAZ O Buffer output pin in high-speed mode. Connect to high-speed integral resistor. 9 IVSH I High current measurement input. 10 IVSL I Low current measurement input 11 OVX I Input high voltage for resistance/capacitor measurement |
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