參數(shù)資料
型號： DS1556-70
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Timer or RTC
英文描述： REAL TIME CLOCK, PDMA32
封裝： EDIP MODULE-32
文件頁數(shù)： 1/23頁
文件大?。?/td> 443K
代理商： DS1556-70
1 of 21
REV: 071305
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.
FEATURES
§ Integrated NV SRAM, Real-Time Clock
(RTC), Crystal, Power-Fail Control Circuit,
and Lithium Energy Source
§ Clock Registers are Accessed Identically to
the Static RAM; These Registers Reside in
the 16 Top RAM Locations
§ Century Byte Register (i.e., Y2K Compliant)
§ Totally Nonvolatile with Over 10 Years of
Operation in the Absence of Power
§ Precision Power-On Reset
§ Programmable Watchdog Timer and RTC
Alarm
§ BCD-Coded Year, Month, Date, Day, Hours,
Minutes, and seconds with Automatic Leap-
Year Compensation Valid Up to the Year
2100
§ Battery Voltage-Level Indicator Flag
§ Power-Fail Write Protection Allows for ±10%
VCC Power-Supply Tolerance
§ Lithium Energy Source is Electrically
Disconnected to Retain Freshness Until
Power is Applied for the First Time
§ Also Available in Industrial Temperature
Range: -40°C to +85°C
PIN CONFIGURATIONS
DS1556
1M, Nonvolatile, Y2K-Compliant
Timekeeping RAM
www.maxim-ic.com
RST
VCC
A15
IRQ/FT
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ5
DQ6
DQ4
DQ3
13
1
2
3
4
5
6
7
8
9
10
11
12
14
31
A14
A7
A5
A4
A3
A2
A1
A0
DQ1
DQ0
32
30
29
28
27
26
25
24
23
22
21
19
20
A16
A12
A6
DQ2
GND
15
16
18
17
Encapsulated DIP
Dallas
Semiconductor
DS1556
TOP VIEW
IRQ/FT
1
2
3
A15
A16
RST
VCC
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
N.C.
A14
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
34
N.C.
X1
GND
VBAT
X2
PowerCap
Module Board
(Uses DS9034PCX PowerCap)
WE
Dallas
Semiconductor
DS1556
PowerCap is a registered trademark of Dallas Semiconductor.
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相關代理商/技術參數(shù)
參數(shù)描述
DS1556-70+ 功能描述:實時時鐘 1M NV RAM Timekeeper RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1556-70IND 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1556-70IND+ 功能描述:實時時鐘 1M NV RAM Timekeeper RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1556-70-W 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1556P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1MEG NV Y2KC Real Time Clocks RAM
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