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参数资料
| 型号： | DS1251YP |
| 英文描述： | 4096k NV SRAM with Phantom Clock |
| 中文描述： | 4096k非易失SRAM与幻影时钟 |
| 文件页数： | 1/22页 |
| 文件大小： | 291K |
| 代理商： | DS1251YP |
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112801
FEATURES
Real-time clock keeps track of hundredths of
seconds, minutes, hours, days, date of the
month, months, and years
512k x 8 NV SRAM directly replaces
volatile static RAM or EEPROM
Embedded lithium energy cell maintains
calendar operation and retains RAM data
Watch function is transparent to RAM
operation
Month and year determine the number of
days in each month; valid up to 2100
Over 10 years of data retention in the
absence of power
Full 10% operating range
Lithium energy source is electrically
disconnected to retain freshness until power
is applied for the first time
DIP Module only
–
Standard 32-pin JEDEC pinout
–
Upward comparable with the DS1248
PowerCap
Module Board only
– Surface mountable package for direct
connection to PowerCap containing
battery and crystal
– Replaceable battery (PowerCap)
– Pin for pin compatible with other densities
of DS124XP phantom clocks
PIN ASSIGNMENT
DS1251/DS1251P
4096k NV SRAM with Phantom Clock
www.maxim-ic.com
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32-Pin Encapsulated Package
740mil Flush
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ1
DQ2
GND
DQ0
V
CC
A15
A17
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
32
19
20
A16
A18/RST
15
16
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1
2
3
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5
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10
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RST
A15
A16
NC
V
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
A17
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
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33
A18
X1
GND V
BAT
X2
34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
PowerCap is a registered trademark of Dallas Semiconductor.
相关PDF资料 |
PDF描述 |
|---|---|
| DS1258Y-70 | 128k x 16 Nonvolatile SRAM |
| DS1258Y-70-IND | Safety Sign; Legend:Notice Authorized Personnel Only; External Height:7"; External Width:10"; Body Material:Polyester; Color:Blue/Black RoHS Compliant: NA |
| DS1258W-100 | 3.3V 128k x 16 Nonvolatile |
| DS1258W-150 | 3.3V 128k x 16 Nonvolatile |
| DS1258WP-100 | 3.3V 128k x 16 Nonvolatile |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1251YP/WP | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:PowerCap with Crystal |
| DS1251YP-100 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS1251YP-70 | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1251YP-70+ | 功能描述:实时时钟 4096K NV SRAM w/Phantom Clock RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1251YP-70IND | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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