參數(shù)資料
型號(hào)： DS1688S+
廠商： Maxim Integrated Products
文件頁數(shù)： 1/3頁
文件大?。?/td> 0K
描述： IC RTC W/NV RAM CTRL 28-SOIC
標(biāo)準(zhǔn)包裝： 26
類型： 時(shí)鐘/日歷
特點(diǎn)： 警報(bào)器，閏年，方波輸出，唯一 ID
存儲(chǔ)容量： 114B
時(shí)間格式： HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD
接口： 并聯(lián)
電源電壓： 2.7 V ~ 3.3 V，4.5 V ~ 5.5 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 28-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 28-SOIC
包裝： 管件
DS1688/DS1691
3V/5V Serialized Real-Time Clocks
with NV RAM Control
1 of 3
REV: 112205
GENERAL DESCRIPTION
The
DS1688/DS1691
are
real-time
clocks
(RTCs) designed as successors to the industry
standard
DS1285,
DS1385,
DS1485,
and
DS1585 PC real-time clocks. These devices
provide the industry standard DS1285 clock
function with the new feature of either +3.0V or
+5.0V operation and automatic backup and write
protection to an external SRAM. The DS1688
also incorporates a number of enhanced features
including a silicon serial number, power-on/off
control circuitry, 114 bytes of user NV SRAM,
power-on
elapsed
timer,
and
power-cycle
counter.
PIN CONFIGURATIONS
FEATURES
Incorporates Industry Standard DS1287 PC
Clock Plus Enhanced Features:
+3V or +5V Operation
64-Bit Silicon Serial Number
64-Bit Customer Specific ROM or
Additional Serial Number Available
Power Control Circuitry Supports System
Power-On from Date/Time Alarm or Key
Closure
Automatic Battery Backup and Write
Protection to External SRAM
Crystal Select Bit Allows RTC to Operate
with 6Pf or 12.5Pf Crystal
114 Bytes User NV RAM
Auxiliary Battery Input
RAM Clear Input
Century Register
32kHz Output for Power Management
32-Bit V
CC Powered Elapsed Time
Counter
32-Bit V
BAT Powered Elapsed Time
Counter
16-Bit Power-Cycle Counter
Compatible with Existing BIOS for
Original DS1287 Functions
Available as IC (DS1688) or Stand-Alone
Module with Embedded Battery and
Crystal (DS1691)
Timekeeping Algorithm Includes Leap
Year Compensation Valid Up to 2100
ORDERING INFORMATION
PART
TEMP RANGE
VOLTAGE (V)
PIN-PACKAGE
TOP MARK*
DS1688S
0
C to +70C
3 to 5
28 SO (0.330
)
DS1688S
DS1688S+
0
C to +70C
3 to 5
28 SO (0.330
)
DS1688S
DS1691
0
C to +70C
3 to 5
28 EDIP (0.740
)
DS1691
+ Denotes a lead(Pb)-free/RoHS-compliant device.
+ A “+” anywhere on the top mark denotes a lead(Pb)-free/RoHS-compliant device.
www.maxim-ic.com
TOP VIEW
相關(guān)PDF資料
PDF描述
DS1689SN+T&R IC RTC SER NV RAM CTRL IN 28SOIC
DS17285S-3NT IC RTC 3V 2K NV RAM 24-SOIC
DS1742-100IND IC RTC RAM Y2K 5V 100NS 24-EDIP
DS1743P-70+ IC RTC RAM Y2K 5V 70NS 34-PCM
DS1744-70IND IC RTC RAM Y2K 5V 70NS 28-EDIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1688S+ 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
DS1689 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
DS1689_05 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control
DS1689S 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
DS1689S/R 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*