參數(shù)資料
型號(hào)： DS1743W-120
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Timer or RTC
英文描述： 0 TIMER(S), REAL TIME CLOCK, DMA28
封裝： EDIP MODULE-28
文件頁(yè)數(shù)： 10/16頁(yè)
文件大小： 190K
代理商： DS1743W-120
DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
3 of 16
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
VOLTAGE
(V)
TOP MARK**
DS1743-85
0°C to +70°C
28 EDIP Module
5
DS1743-85
DS1743-100
0°C to +70°C
28 EDIP Module
5
DS1743-100
DS1743-100 IND
-40°C to +85°C
28 EDIP Module
5
DS1743-100-IND
DS1743P-85
0°C to +70°C
34 PowerCap*
5
DS1743P-85
DS1743P-100
0°C to +70°C
34 PowerCap*
5
DS1743P-100
DS1743P-100IND
-40°C to +85°C
34 PowerCap*
5
DS1743P-100 IND
DS1743W-120
0°C to +70°C
28 EDIP Module
3.3
DS1743W-120
DS1743W-120 IND
-40°C to +85°C
28 EDIP Module
3.3
DS1743W-120 IND
DS1743W-150
0°C to +70°C
28 EDIP Module
3.3
DS1743W-150
DS1743W-150 IND
-40°C to +85°C
28 EDIP Module
3.3
DS1743W-150 IND
DS1743WP-120
0°C to +70°C
34 PowerCap*
3.3
DS1743WP-120
DS1743WP-120 IND
-40°C to +85°C
34 PowerCap*
3.3
DS1743WP-120 IND
DS1743-85+
0°C to +70°C
28 EDIP Module
5
DS1743-85
DS1743-100+
0°C to +70°C
28 EDIP Module
5
DS1743-100
DS1743-100 IND+
-40°C to +85°C
28 EDIP Module
5
DS1743-100-IND
DS1743P-85+
0°C to +70°C
34 PowerCap*
5
DS1743P-85
DS1743P-100+
0°C to +70°C
34 PowerCap*
5
DS1743P-100
DS1743P-100IND+
-40°C to +85°C
34 PowerCap*
5
DS1743P-100 IND
DS1743W-120+
0°C to +70°C
28 EDIP Module
3.3
DS1743W-120
DS1743W-120 IND+
-40°C to +85°C
28 EDIP Module
3.3
DS1743W-120 IND
DS1743W-150+
0°C to +70°C
28 EDIP Module
3.3
DS1743W-150
DS1743W-150 IND+
-40°C to +85°C
28 EDIP Module
3.3
DS1743W-150 IND
DS1743WP-120+
0°C to +70°C
34 PowerCap*
3.3
DS1743WP-120
DS1743WP-120 IND+
-40°C to +85°C
34 PowerCap*
3.3
DS1743WP-120 IND
DS9034PCX
0°C to +70°C
PowerCap
—
DS9034PC
DS9034I-PCX
-40°C to +85°C
PowerCap IND
—
DS9034PCI
DS9034PCX+
0°C to +70°C
PowerCap
—
DS9034PC
DS9034I-PCX+
-40°C to +85°C
PowerCap IND
—
DS9034PCI
+Denotes a lead(Pb)-free/RoHS-compliant package.
*DS9034PCX required (must be ordered separately).
**A ‘+’ indicates lead(Pb)-free. The top mark will include a ‘+’ symbol on lead(Pb)-free devices.
DESCRIPTION
The DS1743 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 8k x 8
nonvolatile static RAM. User access to all registers within the DS1743 is accomplished with a bytewide
interface as shown in Figure 1. The RTC information and control bits reside in the eight uppermost RAM
locations. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in
24-hour binary-coded decimal (BCD) format. Corrections for the day of the month and leap year are made
automatically. The RTC clock registers are double buffered to avoid access of incorrect data that can occur
during clock update cycles. The double-buffered system also prevents time loss as the timekeeping
countdown continues unabated by access to time register data. The DS1743 also contains its own power-
fail circuitry, which deselects the device when the VCC supply is in an out-of-tolerance condition. When
VCC is above VPF, the device is fully accessible. When VCC is below VPF, the internal CE signal is forced
high, preventing any access. When VCC rises above VPF, access remains inhibited for TREC, allowing time
for the system to stabilize. These features prevent loss of data from unpredictable system operation brought
on by low VCC as errant access and update cycles are avoided.
相關(guān)PDF資料
PDF描述
DS9034PCX 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1743-100 0 TIMER(S), REAL TIME CLOCK, DMA28
DS1743WP-120 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1743WP-150 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1743W-150 0 TIMER(S), REAL TIME CLOCK, DMA28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1743W-120 IND 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1743W-120+ 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1743W-120IND 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1743W-120IND+ 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1743W150 制造商:Maxim Integrated Products 功能描述:
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