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參數資料
| 型號： | DS1746P-70 |
| 英文描述： | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| 中文描述： | 千年蟲的，非易失時鐘存儲器 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 224K |
| 代理商： | DS1746P-70 |
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022101
FEATURES
Integrated NV SRAM, real time clock,
crystal, power-fail control circuit and lithium
energy source
Clock registers are accessed identical to the
static RAM. These registers are resident in the
eight top RAM locations.
Century byte register; ie., Y2K compliant
Totally nonvolatile with over 10 years of
operation in the absence of power
BCD coded century, 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
DIP Module only
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Standard JEDEC bytewide 128k x 8 static
RAM pinout
PowerCap
Module Board only
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Surface mountable package for direct
connection to PowerCap containing
battery and crystal
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Replaceable battery (PowerCap)
-
Power-On Reset Output
-
Pin for pin compatible with other densities
of DS174XP Timekeeping RAM
PIN ASSIGNMENT
DS1746/DS1746P
Y2KC Nonvolatile Timekeeping RAM
www.dalsemi.com
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34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
NC
A15
A16
RST
V
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
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
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33
NC
X1
GND V
BAT
X2
32-Pin Encapsulated Package
NC
A16
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
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
V
CC
A15
NC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
32
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1746P-70+ | 功能描述:實時時鐘 Timekeeping NV RAM 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 |
| DS1746P-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 |
| DS1746P-70IND+ | 功能描述:實時時鐘 Timekeeping NV RAM 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 |
| DS1746W | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Y2KC Nonvolatile Timekeeping RAM |
| DS1746W-120 | 功能描述:實時時鐘 Timekeeping NV RAM 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 |
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