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ES51969 数据表(PDF) 4 Page - Cyrustek corporation |
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ES51969 数据表(HTML) 4 Page - Cyrustek corporation |
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4 / 32 page  v2.6 4 08/10/06 ES51969 6,600 Counts Auto DMM 46 APOSEL I Auto power off idle time selection. 47 - 63 SEG17 – SEG01 O LCD segment line 01 – 17 64 BP4 O LCD backplane 4 65 BP3 O LCD backplane 3 66 BP2 O LCD backplane 2 67 BP1 O LCD backplane 1 68 ANNUNC O Square wave output at the backplane frequency, synchronized to BP1. ANNUNC can be used to control display annunciator. Connect a LCD segment to ANNUNC to turn it on; connect an LCD segment to its backplane to turn it off. 69 BUZOUT O Outputs a 2KHz audio frequency signal for driving piezoelectric buzzer when BUZIN is low. 70 OR O OL/UL state indicator in ADP modes. Origin state is low(V-), it goes to high(DGND) only when the reading is over 6,600 counts. It comes back to low only when the reading is less than 600 counts. It will keep the state when the reading is between 600 and 6600 counts. 71 BUZIN I Pull to V- to enable the BUZOUT. 72 ZERO I Pulse to V- to enable ZERO function. 73 ENIR I Pull to V- to enable the INRUSH function. 74 R_OVH I Pull to V- to allow protection resistance increasing at OVH path 75 BKOUT O If BKLIT function is enabled, this pin will change from –3V to +3V for 60 sec, once press BKLIT pin again within 60 sec, this pin will change back to –3V. 76 OSC1 I Crystal oscillator input connection 77 OSC2 O Crystal oscillator output connection 78 VST I Set to V- to enable the auto range voltage mode to start from 660.0V range. 79 MAXMIN I Pulse to V- to enable MAX/MIN function. 80 VAHZ I Pulse to V- to enable VAHZ mode. 81 REL I Pulse to V- to enable Relative function. 82 HOLD I Pulse to V- to enable HOLD function. 83 RANGE I Pulse to V- to enable manual mode and manual range selection. 84 CESEL I CE selection feature control pin. 85 BKSET I Set to V- to change the backligh idle time from 60 sec. to 180 sec. 86 KEY I Pulse to V- to change mode. In ADP mode, if this pin is connected to V-, the buzzer output will be off when the ADP input overflows. In ACA modes for Clampmeter (FC5=low), pulse low to V- could enable Inrush function. 87 SLACDC I Select initial state. Please refer to page 14 88 FC5 I Switch 5 for function selection. 89 FC4 I Switch 4 for function selection. 90 FC3 I Switch 3 for function selection. 91 FC2 I Switch 2 for function selection. 92 FC1 I Switch 1 for function selection. 93 LBAT9 I Low battery configuration. If 3V battery is used, connect it to AGND. The default low-battery threshold voltage is –2.3V. If 9V battery is used, the low battery annunciator is displayed when the voltage of this pin is less than VRH (-1.2V) 94 SDO O RS232 compliant serial data output. 95 C+ O Positive capacitor connection for on-chip DC-DC converter. 96 C- O Negative capacitor connection for on-chip DC-DC converter. 97 V- P Negative supply voltage. Connecting to battery negative terminal. 98 DGND P/G Digital ground. Connecting to battery positive terminal. 99 - 100 AGND P/G Analog ground. |
类似零件编号 - ES51969 |
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类似说明 - ES51969 |
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