DS1323 Maxim, DS1323 Datasheet
DS1323
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DS1323 Summary of contents
Page 1
... Lithium Battery Monitor PIN ASSIGNMENT A/CEI3 B/CEI4 19-5920; Rev 6/11 DS1323 CCO CCI RST BAT CEI1 4 CEO1 CEI2 5 16 CEO2 CEO3 8 13 CEO4 GND 10 11 MODE DS1323E 20-Pin TSSOP (173 mils) ...
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... SRAMs with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. One DS1323 can support as many as four SRAMs arranged in any of three memory configurations. ...
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... MEMORY CONFIGURATIONS The DS1323 can be configured via the MODE pin for three different arrangements of the four attached SRAMs. The state of the MODE pin is latched at V MEMORY CONFIGURATIONS Figure 1 MODE = GND (4 BANKS WITH 1 SRAM EACH): MODE = V (2 BANKS WITH 2 SRAM EACH): CCO ...
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... NOTE: The DS1323 cannot constantly monitor an attached battery because such monitoring would drastically reduce the life of the battery result, the DS1323 only tests the battery for one second out of every 24 hours and does not monitor the battery in any way between tests good battery (one that has not ...
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... As a result, no battery energy is drained during storage and shipping. FUNCTIONAL BLOCK DIAGRAM Figure DS1323 ...
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... TYP MAX UNITS 3.3 3 +0.3 V CCI 0.6 V TYP MAX UNITS 50 200 µA 30 100 µA -0 140 mA 2.8 2.9 3.0 V 2.5 2.6 2 -1.0 +1.0 µA -1.0 +1.0 µA MΩ 0.8 1.2 1.5 MIN TYP MAX UNITS 100 nA 500 µ BAT -0 BAT -0.2 DS1323 NOTES NOTES NOTES 3 7 ...
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... SYMBOL MIN TYP t 150 F t RPD SYMBOL MIN TYP BTCN t 5 BTCW t BTPW t 7 BDBA t BABW DS1323 MAX UNITS NOTES MAX UNITS NOTES 25 ns 1.5 µs 8 125 350 MAX UNITS NOTES µs 15 µ ...
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... TIMING DIAGRAM: POWER-UP NOTE > will begin to slew with V BAT CCTP CCO when CCI CCI CCTP DS1323 ...
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... TIMING DIAGRAM: POWER-DOWN NOTES > will slew down with V BAT CCTP CCO until CCI CCI CCTP DS1323 ...
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... TIMING DIAGRAM: BATTERY WARNING DETECTION NOTE measured from the expiration of the internal timer to the activation of the battery warning output BW TIMING DIAGRAM: BATTERY REPLACEMENT DS1323 . BW ...
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... CE 9. through will be held high for a time equal to t CEO1 CEO4 10. The DS1323 is recognized by Underwriters Laboratories (UL) under file E99151. DC TEST CONDITIONS Outputs Open All voltages are referenced to ground OUTPUT LOAD Figure 3 . CCI – ...
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... TYPICAL OPERATING CHARACTERISTICS (V = +3.3V +25°C, unless otherwise specified -40 3 2.95 2.9 2.85 2.8 2.75 2.7 2.65 2.6 2.55 2.5 -40 SUPPLY CURRENT vs. TEMPERATURE - TEMPERATURE (C) V TRIP vs. TEMPERATURE CC - TEMPERATURE ( DS1323 ...
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... PACKAGE TYPE PACKAGE CODE 20 TSSOP /CEO Propagation Delay, Rising Edge /CEO Propagation Delay, Falling Edge - TEMPERATURE (C) OPERATING TEMP RANGE VOLTAGE (V) -40ºC to +85ºC -40ºC to +85ºC OUTLINE NO. U20 PACKAGE TYPE 3.3 20 TSSOP 3.3 20 TSSOP LAND PATTERN NO. 21-0066 90-0116 DS1323 ...
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... © 2011 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc. DS1323 PAGES CHANGED ...