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Part : MC146818ACP Supplier : Motorola Manufacturer : Bristol Electronics Stock : 5 Best Price : - Price Each : -
Part : MC146818AFN Supplier : Motorola Manufacturer : Bristol Electronics Stock : 73 Best Price : $3.8824 Price Each : $8.96
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MC146818A Datasheet

Part Manufacturer Description PDF Type
MC146818A Motorola REAL-TIME CLOCK PLUS RAM(RTC) Original
MC146818A Motorola Real-Time Clock Plus RAM(RTC) Original
MC146818A Motorola Single-Chip Microcontrollers (AMCU) Original
MC146818A Motorola European Master Selection Guide 1986 Scan
MC146818ACFN Motorola REAL-TIME CLOCK PLUS RAM (RTC) Original
MC146818ACP Motorola REAL-TIME CLOCK PLUS RAM (RTC) Original
MC146818AFN Motorola REAL-TIME CLOCK PLUS RAM (RTC) Original
MC146818AFN Motorola European Master Selection Guide 1986 Scan
MC146818AFN N/A Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Scan
MC146818AL Motorola REAL-TIME CLOCK PLUS RAM(RTC) Original
MC146818AP Motorola REAL-TIME CLOCK PLUS RAM(RTC) Original
MC146818AP Motorola REAL-TIME CLOCK PLUS RAM (RTC) Original
MC146818AP N/A Historical semiconductor price guide (US$ - 1998). From our catalog scanning project. Scan
MC146818AS Motorola REAL-TIME CLOCK PLUS RAM(RTC) Original

MC146818A

Catalog Datasheet MFG & Type PDF Document Tags
Abstract: components and reduce th e cost of th e m otherboard. P in conversions from th e MC146818A to th e bq3285 and , MC146818A PC/AT design (Figure 1, Table 3 ) E quivalent bq3285 design (Figure 2, Table 4) MC146818A/bq3285 , ple MC146818A plus external 8Kx8 SRAM design (Figure 5, Table 6) Exam ple DS1287 plus external 8Kx8 , design (Figure 8, Table 9) Table 1. Converting MC146818A to bq3285/87/87A DIP and SOIC Packages , Table 2. Converting MC146818A to bq4285/87 DIP and SOIC Packages MC146818 Pin No. 1 2-20 21 22 23-24 -
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2NN3906 MH12542 MH12210 panasonic mh12210 mh12210 Lithium Battery BQ3287AMT 3287/A E1340146 3285/87/87A MK48T85/87/87A MC146818A/ 1N4148
Abstract: of a 3-volt battery directly to pins that have other functions on the MC146818A. 1 of 5 033100 , MC146818A. N/A N/A N/A N/A Pin 20 needs to be connected to the positive side of the backup battery , the MC146818A. N/A N/A N/A N/A N/A This pin needs to be connected to the No Connect , Application Note 522 Replacement for the MC146818A www.dalsemi.com OVERVIEW The Motorola MC146818A is no longer in production. There is no direct replacement for this part. However, systems that Dallas Semiconductor
Original
DS12885 DS12887 DS1685 DS1687 dallas ds12887 BATTERY INPUT PIN ds12887 application note DS12887 18 pin 4.194304 crystal oscillator dallas ds12887 battery DS12885/87 DS1685/87
Abstract: of a 3-volt battery directly to pins that have other functions on the MC146818A. 1 of 5 033100 , MC146818A. N/A N/A N/A N/A Pin 20 needs to be connected to the positive side of the backup battery , the MC146818A. N/A N/A N/A N/A N/A This pin needs to be connected to the No Connect , Application Note 522 Replacement for the MC146818A www.dalsemi.com OVERVIEW The Motorola MC146818A is no longer in production. There is no direct replacement for this part. However, systems that Dallas Semiconductor
Original
DALLAS SEMICONDUCTOR Ds12887 DS12887A
Abstract: MC146818A. OSC1, OSC2 TIME BASE, INPUTS AD0-AD 7 - MULTIPLEXED BIDIRECTIONAL ADDRESS/DATA BUS M u ltip , address to be latched w ith in the MC146818A. The address latch w ith in th e M C146818A operates in d e p , AP Figure 14 shows the address map o f the MC146818A. The memory consists o f 50 general purpose RAM , the MC146818A. They can be used by the processor program, and are fully available during the update , to facilitate testing the MC146818A. SQUARE-WAVE OUTPUT SELECTION Fifteen o f the 22 divider taps are -
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I1026 MBD701 mc6809 MC146818A/D MC146805E2 1ATX17763-2
Abstract: VDD or VSS supply and cennot be switched during operation of the MC146818A. OSC1, OSC2 ­ TIME BASE , ~dss to be latched within the MC146818A. Th~ad~~ss latch within the MC146818A operates inde~~a~t , are also used to facilitate testing the' MC146818A. SQUARE-WAVE OUTPUT SELECTION Fifteen of , Order this document by MC14818ND MOTOROLA SEMICONDUCTOR TECHNICAL DATA MC146818A , ~,~ ~.) The MC146818A Real-Time Clock plus RAM is a peripheral device which includes the unique `*f$.\t Motorola
Original
MC1486 MC14818 mc1481 MC148618A how to set calendar s7 200 MC146B18 MC14681
Abstract: VDD or VSS supply and cannot be switched during operation of the MC146818A. .,~t;~, .?)? AS ­ , MC146818A. OSC1, OSC2 ­ TIME BASE, INPUTS The time base for the time functions may be an external , . Bus cycles which take place without asserting C= cause no actions to take place within the MC146818A. , used to facilitate testing the MC146818A. (IRQF bit) indicates that one or more interrupts have , initializing. SET is a read/write bit which is not modified by RESET or internal functions of the MC146818A. Motorola
Original
C3870 S2000 MC140818 6818A mc14880 BD701 BD701 chip mc3870 IW304 C6805
Abstract: closely matches MC146818A · Counts alarm · Selectable between Motorola and Intel bus timing · , for the MC146818A in IBM AT computer clock/calendar and other applications. For a complete Dallas Semiconductor
Original
DS1285 DS1285Q DS1285/DS1285Q 28-PIN
Abstract: DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a , 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 -
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Abstract: Mbytes per second rate. Available in P, S and L package. MC6844 MC68120 MC68121 MC146818A Parallel , power. This makes an ideal device for use in a battery backup environment. MC146818A MOTOROLA EUROPEAN -
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MCM68HC34 M6800 MCM6810 MC6801 MC6800 M6800 Family mc681 M6800-C
Abstract: DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a , 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 -
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DS1290 DS1292 Dallas chip DS1287 12-HOUR DS1287 real time 16-PIN 24-PIN
Abstract: Time Clock is designed to be a direct replacement for the MC146818A. For a complete description of , the MC146818A · Totally nonvolatile with over 10 years of operation in the absence of power Dallas Semiconductor
Original
for REAL TIME CLOCK DS12887 AD-04
Abstract: Mbytes per second rate. Available in P, S and L package. MC6844 MC68120 MC68121 MC146818A Parallel , power. This makes an ideal device for use in a battery backup environment. MC146818A MOTOROLA EUROPEAN -
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DUAL-PORT STATIC RAM dual port ram
Abstract: Mbytes per second rate. Available in P, S and L package. MC6844 MC68120 MC68121 MC146818A Parallel , power. This makes an ideal device for use in a battery backup environment. MC146818A MOTOROLA EUROPEAN -
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MCM4517 MCM68B10 MCM2114 MCM2016H MCM2016 MCM2114P20 MCM68A10 N45/P45
Abstract: DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacement for the MC146818A. For a , SEMICONDUCTOR DALLAS PIN ASSIGNMENT m ot! DS1287 Real Time Clock FEATURES lendar · Pin compatible with the MC146818A · 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, day of the week, date, month, and year with leap year compensation · Binary or BCD representation of time -
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Abstract: Time Clock is designed to be a direct replacement for the MC146818A. For a complete description of , the MC146818A · Totally nonvolatile with over 10 years of operation in the absence of power Dallas Semiconductor
Original
Dallas chip DS12887 Direct Replacement
Abstract: s e m ic o n d u c to r DALLAS DS1285/DS1285Q Real Time Clock FEATURES · Drop-in replacement for IBM AT computer clock/ca lendar · Pin configuration closely matches MC146818A · Counts seconds, minutes, hours, day of the week, date, month, and year with leap year compensation · Binary or BCD representation of time, calendar, and alarm · 12- or 24-hour clock with AM and PM In 12-hour mode · Daylight , CC DESCRIPTION The DS1285 Real Time Chip is a direct replacement for the MC146818A in IBM AT -
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Abstract: ds1285/ds1285q DALLAS SEMICONDUCTOR DS1285/DS1285Q Real Time Clock FEATURES â'¢ Drop-in replacement for IBM AT computer clock/calendar â'¢ Pin configuration closely matches MC146818A â'¢ Counts seconds, minutes, hours, day of the week, date, month, and year with leap year compensation â'¢ Binary or BCD representation of time, calendar, and alarm â'¢ 12- or 24-hour clock with AM and PM in 12 , Real Time Chip is a direct replacement for the MC146818A in IBM AT computer dock/calendar and other -
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DS1212Q DS2009R direct replacement ds1232 DS1228 DS1669 replacement DS1868 DS1284Q DS12885Q DS2010R DS2011R
Abstract: ds1285/ds1285q DALLAS SEMICONDUCTOR DS1285/DS1285Q Real Time Clock FEATURES â'¢ Drop-in replacement for IBM AT computer clock/ca-lendar â'¢ Pin configuration closely matches MC146818A â'¢ Counts seconds, minutes, hours, day of the week, date, month, and year with leap year compensation â'¢ Binary or BCD représentation ottime, calendar, and alarm â'¢ 12- or 24-hour dock with AM and PM in 12-hour mode â'¢ Daylight , for the MC146818A in IBM AT computer dock/calendar and other applications. For a complétà -
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l413D DS2012R 32-PIN
Abstract: s e m ic o n d u c to r DALLAS DS1285, DS1285Q Real Time Clock FEATURES · Drop-in replacement for IBM AT computer clock/ca lendar · Pin configuration closely matches MC146818A · Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compen sation · Binary or BCD representation of time, calendar, and alarm · 12- or 24-hour dock with AM and PM in 12-hour mode · Daylight , MC146818A in IBM AT computer dock/calendar and other applications. An external crystal and battery are the -
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DS1285s DT26S ad2c7 DS1285S DS12B5Q
Abstract: '¢ Pin configuration closely matches MC146818A 1 X 1C 0 16 GND AD3 â'¢ Binary or BCD , MC146818A in IBM AT computer dock/calendar and other applications. An external crystal and battery are the -
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Abstract: shows the typical circuits recommended for the MC146818 and its upgraded version, the MC146818A. MC146818 statek MC146818A According to the Advanced Data Sheet published by Motorola, both versions, the MC146818 and MC146818A, are specified to operate in STBY mode on minimum BBV of 3.0V. However , backup currents drawn by the Motorola RTC MC146818 and MC146818A in standby mode are shown in Table 1 , kHz frequency than the built-in inverter in the MC146818, or the MC146818A, and will operate on 3.0V -
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6116LP MM58167A 8418-20L MC146818 RTC CHIP 1500 mah battery digital voltmeter d 5135
Abstract: DESCRIPTION The DS1287 Real Time Clock is designed to be a direct replacem ent for the MC146818A. For a com -
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Abstract: s e m ic o n d u c to r DALLAS DS1285/DS1285Q Real Time Clock FEATURES · Drop-in replacement for IBM AT computer clock/ca lendar · Pin configuration closely matches MC146818A · Counts seconds, minutes, hours, day of the week, date, month, and year with leap year compensation · Binary or BCD representation of time, calendar, and alarm · 12- or 24-hour clock with AM and PM In 12-hour mode · Daylight , CC DESCRIPTION The DS1285 Real Time Chip is a direct replacement for the MC146818A in IBM AT -
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285/DS1 1285Q
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