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DS1556W-120IND+ Datasheet(PDF) 11 Page - Maxim Integrated Products |
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DS1556W-120IND+ Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 18 page DS1556 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM 11 of 18 ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground……………………..……………………………………………..-0.3V to +6.0V Storage Temperature Range EDIP........................………………………………………………………………...................................-40°C to +85°C PowerCap..............………………………………………………….…………………………………..-55°C to +125°C Lead Temperature (soldering, 10s).………..........................................................................................................................+260°C Note: EDIP is hand or wave-soldered only. Soldering Temperature (reflow, PowerCap)………………………………….....................................................................+260°C This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. OPERATING RANGE RANGE TEMP RANGE VCC Commercial 0°C to +70°C 3.3V 10% or 5V 10% Industrial -40°C to +85°C 3.3V 10% or 5V 10% RECOMMENDED DC OPERATING CONDITIONS (Over the Operating Range) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VIH VCC = 5V 10% 2.2 VCC + 0.3V V Logic 1 Voltage All Inputs (Note 1) VIH VCC = 3.3V 10% 2.0 VCC + 0.3V V VIL VCC = 5V 10% -0.3 +0.8 Logic 0 Voltage All Inputs (Note 1) VIL VCC = 3.3V 10% -0.3 +0.6 DC ELECTRICAL CHARACTERISTICS (VCC = 5.0V 10%, Over the Operating Range.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Active Supply Current ICC (Notes 2, 3, 11) 30 85 mA TTL Standby Current ( CE = V IH) ICC1 (Notes 2, 3) 4 6 mA CMOS Standby Current ( CE V CC - 0.2V) ICC2 (Notes 2, 3) 2 6 mA Input Leakage Current (Any Input) IIL -1 +1 A Output Leakage Current (Any Output) IOL -1 +1 A Output Logic 1 Voltage (IOUT = -1.0 mA) VOH (Note 1) 2.4 V VOL1 IOUT = 2.1 mA, DQ0–7 Outputs (Note 1) 0.4 V Output Logic 0 Voltage VOL2 IOUT = 7.0 mA, IRQ/FT, and RST Outputs (Notes 1, 5) 0.4 V Write Protection Voltage VPF (Note 1) 4.20 4.50 V Battery Switchover Voltage VSO (Notes 1,4) VBAT V |
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