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¹¦ÄÜÃèÊö | Y2K-Compliant Watchdog Real-Time Clocks |
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Éú²ú³§ÉÌ | Maxim Integrated Products |
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GENERAL DESCRIPTION
The DS1501/DS1511 are full-function, year 2000-compliant real-time clock/calendars (RTCs) with an RTC alarm, watchdog timer, power-on reset, battery monitors, 256 bytes NV SRAM, and a 32.768kHz output. User access to all registers within the DS1501/DS1511 is accomplished with a byte-wide interface, as shown in Figure 8. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour binary-coded
decimal (BCD) format. Corrections for day of month and leap year are made automatically.
FEATURES
BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100
Programmable Watchdog Timer and RTC Alarm
Century Register; Y2K-Compliant RTC
+3.3 (W) or +5V (Y) Operation
Precision Power-On Reset
Power-Control Circuitry Support System
? Power-On from Date/Day/Time Alarm or Key
? Closure/Modem-Detect Signal
256 Bytes Battery-Backed SRAM
Auxiliary Battery Input
Accuracy of DS1511 Better than ¡À1 Minute/Month at +25¡ãC
Day-of-Week/Date Alarm Register
Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF Crystal (DS1501)
Battery Voltage-Level Indicator Flags
Available as Chip (DS1501) or Stand-Alone
? Encapsulated DIP Module with Embedded
? Battery and Crystal (DS1511)
APPLICATIONS
Remote Systems
Battery-Backed Systems
Telecom Switches
Office Equipment
Consumer Electronics
Underwriters Laboratories (UL) Recognized
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Y2K-Compliant Watchdog Real-Time Clocks
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DS1501WEN |
MAXIM |
0801+ |
TSSOP28 |
400 |
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DS1501WZ+TR |
MAXIM/ÃÀÐÅ |
22+ |
N/P |
8860000 |
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DS1501WZ+T&R |
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SOIC(W)-28 |
1000 |
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SOIC-28 |
2500 |
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DS1501WSN |
MAXIM |
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13500 |
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DS1501WZN+T&R |
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N/A |
70000 |
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3000 |
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13316 |
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Maxim |
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28SOIC |
9000 |
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DS1501 ²úÆ·Ïà¹ØÐͺÅ
- 23ESB101KWB22A
- AAI20M000000GLE18H
- AAP20M000000GJE18H
- C-15-002-P-SLCMI
- C-15-002-TD-SLCMI
- CY7C025-55AC
- CY7C025-55AXC
- CY7C0852AV-133BBI
- CY7C1011CV33-12ZXI
- CY7C1020-10ZC
- CY7C1020CV26-15ZSXE
- CY7C1021CV33-10BAXI
- CY7C1034DV33
- CY7C1041B-12VXC
- CY7C1041B-15VC
- CY7C140-35PI
- CY7C140-45PI
- CY7C146-15JC
- CY7C374I-66JI
- CY7C374I-83YMB
- CY7C374IL-66AC
- CY7C419-30JC
- CY7C420-65PC
- DS1500
- DS1500YE
- DS1501WE
- EM622FT16BT-55S
- EXB1HV4720X
- PHE426MF6820JR06L2
- PHE426MR7120JR06L2
DatasheetÊý¾Ý±íPDFÒ³ÂëË÷Òý
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