DS1743P DALLAS [Dallas Semiconductor], DS1743P Datasheet
DS1743P
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DS1743P Summary of contents
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... PowerCap containing battery and crystal – Replaceable battery (PowerCap) – Power-On Reset Output – Pin for pin compatible with other densities of DS174XP Timekeeping RAM ORDERING INFORMATION DS1743P-XXX (5V) - access -100 100 ns access blank 28-pin DIP Module P 34-pin PowerCap Module board* *DS1743WP-XXX (3 ...
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... This design allows the PowerCap to be mounted on top of the DS1743P after the completion of the surface mount process. Mounting the PowerCap after the surface mount process prevents damage to the crystal and battery due to the high temperatures required for solder reflow ...
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... X DESELECT DESELECT bit is the MSB (bit 7) of the seconds registers, see OSC low, low, high, and address for seconds register remain valid and DS1743/DS1743P DQ POWER HIGH-Z STANDBY HIGH-Z STANDBY DATA IN ACTIVE DATA OUT ACTIVE HIGH-Z ACTIVE HIGH-Z CMOS STANDBY ...
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... X = SEE NOTE BELOW (output enable) is low, OE access times and states are satisfied the data lines are driven to an intermediate state until t remain valid, output data will remain valid for output data hold time DS1743/DS1743P FUNCTION/RANGE YEAR MONTH DATE ...
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... greater than Vso, the device power is switched from V PF supply is not present. The capability of this internal power supply DS1743/DS1743P prior to the initiation of another read or WR afterward can be active provided OE is low prior to ...
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... Operating Range; V SYMBOL MIN TYP CC1 I 1 CC2 2 OL1 V 4. BAT DS1743/DS1743P Exposure to absolute V CC 3.3V 10 10% (Over the Operating Range) MAX UNITS NOTES V +0. + 5.0V 10%) CC MAX UNITS NOTES 50 ...
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... MAX SYMBOL CEL t 70 CEA t 80 CE2A t 25 CEZ t 5 OEL t 35 OEA t 25 OEZ DS1743/DS1743P = 3.3V CC MAX UNITS 0.4 2. BAT PF = 5.0V CC 100 ns access MIN MAX UNITS 100 ns 100 ...
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... MIN MAX SYMBOL t 120 RC t 120 CEL t 120 CEA t 40 CEZ t 5 OEL t 100 OEA t 35 OEZ DS1743/DS1743P = 3.3V CC MIN MAX UNITS NOTES 150 ns 150 150 130 10 ...
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... MIN MAX SYMBOL t 120 100 WEW t 110 CEW WEZ DS1743/DS1743P = 5.0V CC MIN MAX UNITS NOTES 100 3.3V CC MIN MAX UNITS NOTES 150 ...
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... WRITE CYCLE TIMING, WRITE ENABLE CONTROLLED (SEE NOTE 5) WRITE CYCLE TIMING CE2 CONTROLLED (SEE NOTE DS1743/DS1743P ...
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... PF V (MAX) PF Power-up Recover Time Expected Data Retention Time (Oscillator On) POWER-UP/POWER-DOWN TIMING 5-VOLT DEVICE (Over the Operating Range; V SYMBOL MIN , 300 REC DS1743/DS1743P = 5.0V CC TYP MAX UNITS years 10%) NOTES 6, 7 ...
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... Capacitance on all input pins Capacitance on all output pins (Over the Operating Range; V SYMBOL MIN TYP 300 REC SYMBOL MIN TYP DS1743/DS1743P = 3.3V 10%) CC MAX UNITS NOTES years MAX UNITS NOTES ...
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... To solder, apply flux to the pad, heat the lead frame pad and apply solder. To remove the part, apply flux, heat the lead frame pad until the solder reflow and use a solder wick to remove solder. signal except that the logic levels for DS1743/DS1743P . PF is first applied by the CC starting ...
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... DS1743 28-PIN PACKAGE DS1743/DS1743P ...
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... Hand Soldering and touch-up: Do not touch or apply the soldering iron to leads for more than 3 (three) seconds. To solder, apply flux to the pad, heat the lead frame pad and apply solder. To remove the part, apply flux, heat the lead frame pad until the solder reflows and use a solder wick to remove solder DS1743/DS1743P ...
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... DS1743P WITH DS9034PCX ATTACHED DS1743/DS1743P ...
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... RECOMMENDED POWERCAP MODULE LAND PATTERN DS1743/DS1743P ...