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ds1287 Datasheet

Part Manufacturer Description PDF Type
DS1287 Dallas Semiconductor Real Time Clock Original
DS1287 Dallas Semiconductor REALTIME CLOCK Scan
DS1287 Dallas Semiconductor Real Time Clock Scan
DS1287A Dallas Semiconductor Real Time Clock Original
DS1287A Dallas Semiconductor Real Time Clock Scan

ds1287

Catalog Datasheet MFG & Type PDF Document Tags

ds1287

Abstract: DS1287 real time functions of the DS1287. The following paragraphs describe the function of each pin. POWER-DOWN/POWER-UP , the DS1287. 020592 3/17 6-89 DS1287 DS (Data Strobe or Read Input) - The OS/RD pin has , purpose nonvolatile RAM bytes are not dedicated to any special function within the DS1287. They can be , one or more interrupts have been initiated by the DS1287. The act of reading Register C clears all , read/write bit that is not modified by RESET or internal functions of the DS1287. REGISTER A MSB
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DS1287 real time MC146818A S1287 010TNA

DS1287

Abstract: edge of AS/ALE causes the address to be latched within the DS1287. AD0-AD7 (Multiplexed , nonvolatile RAM bytes are not dedicated to any special function within the DS1287. They can be used by the , (IRQF bit) indicates that one or more interrupts have been initiated by the DS1287. The act of reading , internal functions of the DS1287. PIE The periodic interrupt enable PIE bit is a read/ write bit which , nAi â AS DS1287 Real Time Clock SEMICONDUCTOR FEATURES PIN DESCRIPTION â
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OS1287

DS1287

Abstract: internal functions of the DS1287. The following paragraphs describe the function of each pin. FIGURE , latched within the DS1287. 020592 3/17 DS1287 DS (Data Strobe or Read Input) - The DS/RD pin has , any special function within the DS1287. They can be used by the processor program as nonvol­ atile , bit) indicates that one or more interrupts have been initiated by the DS1287. The act of reading , DS1287. REGISTER A MSB LSB BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT0
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24-PIN

DS1287

Abstract: d51287 tions with the major internal functions of the DS1287. pin. | RGimetr BLOCKD1AGRAM DSI28T POWER-DOWN , edge of AS/ALE causes the address to be latched within the DS1287. >>'-5 020592 3/17 â 'ï-î 5-89 , to any special function within the DS1287. They can be used by the processor program as nonvolatile , the DS1287. The act of reading Register C dears all active flag bits and the IRQF bit. ' 020592 S/17 , functions of the DS1287. PIE The periodic interrupt enable PIE bit is a read/write b'rt which allows the
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d51287 DS1237 287BUSTI 020S92 3S12S7 0J370

DS1287

Abstract: DS12C885 shown in Figure 2 as the DS1287. It consists of 14 bytes of timekeeping and control registers with 50 , Maxim > App Notes > REAL-TIME CLOCKS Keywords: Y2K, year 2000, DS1285, DS1287, DS12885, DS12887 , location was designated to store the century. Figure 2. DS1287 Clock architecture. The hardware clock , compatibility with the existing DS1287 clock architectures had a strong influence on the design of the first Y2K clocks. Since the DS1287 clock was the dominant clock architecture for personal computers and
Maxim Integrated Products
Original
DS12C885 DS12C887 DS1643 DS1743 AN562 APP562 DS1687

DS1287

Abstract: Dallas chip DS1287 DS1287 DALLAS SEMICONDUCTOR DS1287 Real Time Clock FEATURES â'¢ Drop-in replacement for IBM AT computer clock/calendar â'¢ Pin compatible with the MC146818A â'¢ Totally nonvolatile with over 10 years of operation in the absence of power â'¢ Self-contained subsystem includes lithium, quartz, and support circuitry â'¢ Counts seconds, minutes, hours, day of the week, date, month, and year , DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a
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DS1290 DS1292 Dallas chip DS1287 12-HOUR Dallas DS1287 16-PIN

DS1287

Abstract: Dallas chip DS1287 DS1687 2bl413ü 00070^4 7Ã"5 ! DAL PRODUCT PREVIEW DALLAS SEMICONDUCTOR DS1687 3 Volt/5 Volt Serialized Real Time Clock FEATURES Incorporates industry standard DS1287 PC clock plus enhanced , for original DS1287 functions â'¢ RTC and connected RAM can be supported for over 10 years with a , industry standard DS1287, DS1387, DS1488, and DS1587 PC real time clocks. This device provides the industry standard DS1287 clock function with the new feature of either +3.0 or +5.0 volt operation and incorporates
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dallas nvram RTC Real Time Clocks dallas ds1687 BATTERY INPUT PIN DALLAS DS1687 DS1687-XX 28-PIN 2L14130

DS1287

Abstract: for REAL TIME CLOCK DS12887 DS1287 DS1287 Real Time Clock FEATURES PIN ASSIGNMENT · Drop-in replacement for IBM AT computer clock/calendar MOT 1 24 VCC NC 2 23 SQW NC 3 22 NC AD0 4 21 NC AD1 5 20 NC · Self-contained AD2 6 19 IRQ AD3 7 18 RESET · Counts AD4 8 17 DS seconds, minutes, hours, day of the week, date, month, and , request output (open - Square wave output +5 volt supply Ground DESCRIPTION The DS1287 Real
Dallas Semiconductor
Original
for REAL TIME CLOCK DS12887 AD-04

HT12888A

Abstract: how to check ic on motherboard Maxim > App Notes > REAL-TIME CLOCKS Keywords: DS1287, DS12887, HT12888, HT12888A, real time clock , Replacing the DS1287/DS12887 Real-Time Clock in a Personal Computer Abstract: This application note describes the replacement of the DS1287/DS12887 real-time clock (RTC) or "CMOS clock" in a personal , PCs and their availability status: Device Status DS1287 Not Available DS12887 , guarantee that the PC will work afterwards. Here are some of the issues: q q q The DS1287 is
Maxim Integrated Products
Original
how to check ic on motherboard dallas ds12887 battery ds12887 application note RTC DS12C887 Dallas chip DS12887 DS12B887 Real-Time Clock DS1287/DS12887 DS12887A DS12C887A AN503 APP503

DS1287

Abstract: ad338 28 i V cc 27 g s a w · Incorporates industry standard DS1287 PC dock plus enhanced features: 64 , Compatible with existing BIOS for original DS1287 function ORDERING INFORMATION PART# DS1692 DESCRIPTION , upward-compatible successor to the industry standard DS1287 PC real time dock. The DS1692offers a dramatic
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ad338 BIOS pin assignment S1692

how to check ic on motherboard

Abstract: ht12888a . REAL-TIME CLOCKS Application Note 769: Feb 07, 2002 App Note 503: Replacing the DS1287/DS12887 Real-Time Clock in a Personal Computer This application note describes the replacement of the DS1287/DS12887 real-time clock (RTC) or "CMOS clock" in a personal computer (PC). The CMOS clock is also , of 3 Device DS1287 DS12887 DS12887A DS12B887 DS12C887 DS1387 DS1397 DS1587 Status Not , some of the issues: · The DS1287 is obsolete. In many cases, a DS12887 will replace it. However, on
Dallas Semiconductor
Original
DALLAS DS12B887 PC MOTHERBOARD CIRCUIT MANUAL ht1288 motherboard ic list DALLAS DS12C887 houston tech

DS1287

Abstract: DS1587 DS1687 PRO DUCT PREVIEW DALLAS s e m ic o n d u c to r 3 Volt/5 Volt S©rializ6d Real Tim© Clock D S 1687 FEATURES Incorporates industry standard DS1287 PC dock plus enhanced features: · , · 16 -b it power cycle counter · Compatible with existing BIOS for original DS1287 functions · RTC , is a real time clock (RTC) designed as a successor to the industry standard DS1287, DS1387, DS1488, and DS1587 PC real time clocks. Thisdevice provides the industry standard DS1287 clock function with
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32KX8NVSRAM 9 volt battery diagram DS16S7
Abstract: DS1287 s e m ic o n d u c to r DALLAS PIN ASSIGNMENT MOT i NC I NC I 1 2 3 4 5 6 7 8 DS1287 Real Tim e C lock FEATURES · Drop-in replacem ent for IBM AT com puter clock/ca lendar · Pin com patible with the M C146818A · Totally nonvolatile with over 10 years of operation in the absence of power · Self-contained subsystem includes lithium, quartz, and support circuitry · Counts seconds , DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacem ent for the MC146818A. For a com -
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DS1287

Abstract: Dallas chip DS1287 DS1287 DS1287 Real Time Clock FEATURES PIN ASSIGNMENT · Drop-in replacement for IBM AT computer clock/calendar MOT 1 24 VCC NC 2 23 SQW NC 3 22 NC AD0 4 21 NC AD1 5 20 NC · Self-contained AD2 6 19 IRQ AD3 7 18 RESET · Counts AD4 8 17 DS seconds, minutes, hours, day of the week, date, month, and , request output (open - Square wave output +5 volt supply Ground DESCRIPTION The DS1287 Real
Dallas Semiconductor
Original
Direct Replacement DAYLIGHT MODE OF REAL TIME CLOCK DS12887

Dallas chip DS1287

Abstract: DS1287 standard DS1287 PC clock plus enhanced features: - 64-bit silicon serial number - 64-bit customer , mode â'¢ Compatible with existing BIOS for original DS1287 function ORDERING INFORMATION PART , industry standard DS1287 PC real time clock. The DS1692offers a dramatic improvement in accuracy with no
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PS1692 EL14130

for REAL TIME CLOCK DS12887

Abstract: Dallas chip DS12887 DS12887 DALLAS s e m ic o n d u c to r FEATURES · Drop-in replacement for IBM AT computer clock/ calendar · Pin compatible with the M C146818B and DS1287 · Totally nonvolatile with over 10 years of operation in the absence of power · Self-contained subsystem includes lithium, quartz, and support circuitry · Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year com , replacement for the DS1287, The D S 12887 is identical in form, fit, and function to the DS1287, and has an
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S12887

DS1287

Abstract: FDC37C932 Jeffrey Dunnihoo, Carl Schooley and Nizar Azzam The SMSC DS1287/MC146818 Register Compatible RTC core , replace the battery entirely. There are obvious physical differences between the SMSC RTC and the DS1287 (the DS1287 includes a battery and crystal), and the SMSC RTC has functional differences with the , Register A before it can be used). 3) The DS1287A has a RAMCLR pin to set all bits in CMOS to a "1". The DS1287 does not have such a pin and the FDC37C93X does not have the pin budget for such a function
Standard MicroSystems
Original
MC146818 FDC37C932 rtc circuit diagram MC146818 RTC CHIP DS1287/MC146818

MH12210

Abstract: panasonic mh12210 ple MC146818A plus external 8Kx8 SRAM design (Figure 5, Table 6) Exam ple DS1287 plus external 8Kx8 , Figure 6. DS1287 w/NVSRAM EISA or MCA Example 8/12 Oct. 1993 5-290 Typical RTC PC Hookups Table , il 12 13 14 15 16 17 18 19 Table 7. DS1287 w/ NVSRAM EISA or MCA Parts List (Figure 6) Item 1 2 3 Quantity 1 1 1 Reference Rl U1 U2 Part 10K DS1287 DS1225Y or or bq3287 bq4010Y Oct. 1993 9/12
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2NN3906 MH12542 MH12210 panasonic mh12210 mh12210 Lithium Battery BQ3287AMT 3287/A E1340146 3285/87/87A MK48T85/87/87A MC146818A/ 1N4148

MC146818 RTC CHIP

Abstract: MC146818 before it can be used). 3) The DS1287A has a RAMCLR pin to set all bits in CMOS to a "1". The DS1287 does , APPLICATION NOTE 5.13 Rev. 1.2 REAL TIME CLOCK CONSIDERATIONS FOR SMSC ULTRA I/O DEVICES by Jeffrey Dunnihoo, Carl Schooley and Nizar Azzam The SMSC DS1287/MC146818 Register Compatible RTC core , the battery entirely. There are obvious physical differences between the SMSC RTC and the DS1287 (the DS1287 includes a battery and crystal), and the SMSC RTC has functional differences with the MC146818 as
Standard MicroSystems
Original
9535-C 6C62665-2-01
Abstract: DALLAS SEMICONDUCTOR DS1287 Real Time Clock FEATURES PIN ASSIGNMENT â'¢ Drop-in replacement for IBM AT computer clock/ca­ lendar mot W Ih NCI I 2 NC I I 3 ADO I I 4 AD1 I I 5 AD2 I I 6 AD3 I I 7 AD4 1I 8 AD5 II 9 â'¢ Pin compatible with the MC146818A â'¢ Totally nonvolatile with over 10 years of operation in the absence of power â'¢ Self-contained subsystem includes , DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a -
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DS1287

Abstract: DS1285 DS1285/DS1287 RTC's for PC applica tions. In addition to the basic DS1285/DS1287 RTC functions, 4K bytes , same as the DS1287 Real Time Clock. Access to the RTC is accomplished with four controls: ALE, RD, WR and 5S . The RTC is the same in the DS1287 with the following exceptions: 1. The MOT pin on the DS1285/DS1287 is not present on the DS1385/DS1387. The bus selection capa bility of the DS1285/DS1287 has been eliminated. Only the Intel bus interface timing is applicable. 2. The RESET pin on the DS1285/DS1287 is not
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6132 SRAM DS1367 1385/D DS1385 DS1385S

dallas 1287

Abstract: g^qorm ciide · Daylight Savings Tim e option DS1287 Real Time C lock PIN ASSIGNMENT K NC J , volt supply Ground DESCRIPTION T he DS1287 Real Time Clock is designed to be a direct replacem ent
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dallas 1287 MC146
Abstract: DS1285/DS1287 RTCâ'™s for PC applica­ tions. In addition to the basic DS1285/DS1287 RTC functions, 4K , . RTC (REAL TIME CLOCK) The RTC function is the same as the DS1287 Real Time Clock. Access to the RTC is accomplished with four controls: ALE, RD, W R and CS. The RTC is the same in the DS1287 with the following exceptions: 1. The MOT pin on the DS1285/DS1287 is not present on the DS1385/DS1387. The bus selection capabili­ ty of the DS1285/DS1287 has been eliminated. Only the Intel bus interface timing is -
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DS1385/DS13S7 Q0134S7
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