參數(shù)資料
型號(hào): DS1742-100
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 10/17頁(yè)
文件大?。?/td> 0K
描述: IC RTC RAM Y2K 5V 100NS 24-EDIP
標(biāo)準(zhǔn)包裝: 14
類(lèi)型: 時(shí)鐘/日歷
特點(diǎn): 閏年,NVSRAM,Y2K
存儲(chǔ)容量: 2KB
時(shí)間格式: HH:MM:SS(24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 4.5 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 通孔
封裝/外殼: 24-DIP 模塊(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 24-EDIP
包裝: 管件
DS1742
2 of 17
PIN DESCRIPTION
PIN
33B
NAME
FUNCTION
1
A7
Address Input
2
A6
3
A5
4
A4
5
A3
6
A2
7
A1
8
A0
19
A10
22
A9
23
A8
9
DQ0
Data Input/Output
10
DQ1
11
DQ2
13
DQ3
14
DQ4
15
DQ5
16
DQ6
17
DQ7
12
GND
Ground
18
CE
Active-Low Chip-Enable Input
20
OE
Active-Low Output-Enable Input
21
WE
Active-Low Write-Enable Input
24
VCC
Power-Supply Input
DESCRIPTION
The DS1742 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) and
2k x 8 nonvolatile static RAM. User access to all registers within the DS1742 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 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 DS1742 also
contains its own power-fail circuitry, which deselects the device when the VCC supply is in an
out-of-tolerance condition. This feature prevents 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
MS27472T20F2PA CONN RCPT 65POS WALL MT W/PINS
MCP4152-502E/SN IC POT DGTL SNGL 5K RHEO 8SOIC
MCP4152-502E/P IC POT DGTL SNGL 5K RHEO 8DIP
DS17887-3 IC RTC 3V 8K NV RAM 24-EDIP
VI-2NM-MY-F3 CONVERTER MOD DC/DC 10V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1742-100+ 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(xiàn)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
DS1742-100IND 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(xiàn)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
DS1742-100IND+ 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(xiàn)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
DS1742-70 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(xiàn)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
DS1742-70+ 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(xiàn)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