參數(shù)資料
型號(hào)： DS1500YN
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 0K
描述： IC RTC Y2KC W/NV CTRL 5V 32-DIP
標(biāo)準(zhǔn)包裝： 13
類型： 時(shí)鐘/日歷
特點(diǎn)： 警報(bào)器，閏年，NVSRAM，方波輸出，監(jiān)視計(jì)時(shí)器，Y2K
存儲(chǔ)容量： 256B
時(shí)間格式： HH:MM:SS（24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： 并聯(lián)
電源電壓： 4.5 V ~ 5.5 V
電壓 - 電源，電池： 2.5 V ~ 3.7 V
工作溫度： -40°C ~ 85°C
安裝類型： 通孔
封裝/外殼： 32-DIP 模塊（0.600"，15.24mm）
供應(yīng)商設(shè)備封裝： 32-EDIP
包裝： 管件
1 of 20
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
GENERAL DESCRIPTION
The DS1500 is a full-function, year 2000-compliant
real-time clock/calendar (RTC) with an alarm,
watchdog timer, power-on reset, battery monitors,
256 bytes of on-board nonvolatile (NV) SRAM, NV
control for backing up an external SRAM, and a
32.768kHz output. User access to all registers within
the DS1500 is accomplished with a byte-wide
interface, as shown in Figure 7. 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.
APPLICATIONS
Remote Systems
Battery-Backed Systems
Telecom Switches
Office Equipment
Consumer Electronics
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
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
Automatic Battery Backup and Write
Protection to External SRAM
+5V or +3.3V Operation
Precision Power-On Reset
Power-Control Circuitry Supports System
Power-On from Date/Day/Time Alarm or Key
Closure
256 Bytes User NV RAM
Auxiliary Battery Input
Accuracy Better than ±1 Minute/Month at
+25°C
Day-of-Week/Date Alarm Register
Battery Voltage-Level Indicator Flags
Optional Industrial Temperature Range: -40°C
to +85°C
ORDERING INFORMATION
PART
TEMP RANGE
VOLTAGE (V)
PIN-PACKAGE
0B
TOP MARK*
DS1500WE+
0°C to +70°C
3.3
32 TSOP
DS1500W
DS1500WEN+
-40°C to +85°C
3.3
32 TSOP
DS1500WN
DS1500YE+
0°C to +70°C
5.0
32 TSOP
DS1500Y
DS1500YEN+
-40°C to +85°C
5.0
32 TSOP
DS1500YN
+Denotes a lead(Pb)-free/RoHS-compliant device.
*A “+” anywhere on the top mark indicates a lead(Pb)-free/RoHS-compliant device. An “N” indicates an industrial temperature range device.
DS1500
Y2K Watchdog RTC with Nonvolatile Control
19-6130; Rev 11/11
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