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参数资料
| 型号： | DS1743P-70+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/17页 |
| 文件大小： | 0K |
| 描述： | IC RTC RAM Y2K 5V 70NS 34-PCM |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 40 |
| 类型： | 时钟/日历 |
| 特点： | 闰年，NVSRAM，Y2K |
| 存储容量： | 8KB |
| 时间格式： | HH:MM:SS（24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电压 - 电源，电池： | 3V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 34-PowerCap? 模块 |
| 供应商设备封装： | 34-PowerCap 模块 |
| 包装： | 管件 |
DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
7 of 17
Table 2. Register Map
ADDRESS
DATA
FUNCTION
RANGE
B7
B6
B5
B4
B3
B2
B1
B0
1FFF
10 Year
Year
00–99
1FFE
X
10
Month
01–12
1FFD
X
10 Date
Date
01–31
1FFC
BF
FT
X
Day
01–07
1FFB
X
10 Hour
Hour
00–23
1FFA
X
10 Minutes
Minutes
00–59
1FF9
OSC
10 Seconds
Seconds
00–59
1FF8
W
R
10 Century
Century
Control
00–39
OSC
= STOP BIT
R = READ BIT
FT = FREQUENCY TEST
W = WRITE BIT
X = SEE NOTE BELOW
BF = BATTERY FLAG
Note: All indicated “X” bits must be set to “0” when written to ensure proper clock operation.
RETRIEVING DATA FROM RAM OR CLOCK
The DS1743 is in the read mode whenever OE (output enable) is low, WE (write enable) is high, and CE
(chip enable) is low. The device architecture allows ripple-through access to any of the address locations in
the NV SRAM. Valid data will be available at the DQ pins within tAA after the last address input is stable,
providing that the, CE and OE access times and states are satisfied. If CE, or OE access times and states
are not met, valid data will be available at the latter of chip enable access (tCEA) or at output enable access
time (tCEA). The state of the data input/output pins (DQ) is controlled by CE and OE. If the outputs are
activated before tAA, the data lines are driven to an intermediate state until tAA. If the address inputs are
changed while CE and OE remain valid, output data will remain valid for output data hold time (tOH) but
will then go indeterminate until the next address access.
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| DS17887-3-IND | IC RTC 3V 8K NV RAM 24-EDIP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1743P-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 |
| DS1743P-85+ | 功能描述:实时时钟 Timekeeping NV RAM 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 |
| DS1743P-85IND+ | 功能描述:实时时钟 Timekeeping NV RAM 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 |
| DS1743P-C01+ | 制造商:Maxim Integrated Products 功能描述:Y2KC RAM PCAP 8KX8 100NS ROCKWELL - Trays |
| DS1743W-120 | 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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