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參數(shù)資料
| 型號： | DS1556-70 |
| 英文描述： | 1M, Nonvolatile, Y2K-Compliant Timekeeping RAM |
| 中文描述： | 1048576，非易失，符合2000年要求時鐘內存 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 514K |
| 代理商： | DS1556-70 |
1 of 20
REV: 101804
Note:
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%
V
CC
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
DQ0
GND
17
DS1556
1M, Nonvolatile, Y2K-Compliant
Timekeeping RAM
www.maxim-ic.com
RST
A16
V
CC
A15
IRQ
/FT
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ5
DQ4
DQ3
DQ6
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
31
30
29
28
27
26
25
24
23
22
21
20
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ1
DQ2
GND
DQ0
32
19
18
17
Encapsulated DIP
Dallas
Semiconductor
DS1556
TOP VIEW
IRQ
/FT
A15
A16
RST
V
WE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ1
N.C.
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
33
N.C.
X1
GND V
BAT
X2
PowerCap
Module Board
(Uses DS9034PCX PowerCap)
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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