參數資料
型號: DS1642-70
廠商: Maxim Integrated Products
文件頁數: 1/13頁
文件大小: 0K
描述: IC RAM TIMEKEEP NV 70NS 24-EDIP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 14
類型: 時鐘/日歷
特點: 閏年,NVSRAM
存儲容量: 2KB
時間格式: HH:MM:SS(24 小時)
數據格式: 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
安裝類型: 通孔
封裝/外殼: 24-DIP 模塊(0.600",15.24mm)
供應商設備封裝: 24-EDIP
包裝: 管件
1 of 11
FEATURES
Integrated NV SRAM, Real-Time Clock,
Crystal, Power-Fail Control Circuit, and
Lithium Energy Source
Standard JEDEC Bytewide 2k x 8 Static
RAM Pinout
Clock Registers are Accessed Identically to
the Static RAM. These Registers are
Resident in the Eight Top RAM Locations
Totally Nonvolatile with Over 10 Years of
Operation in the Absence of Power
Access Times of 85ns and 100ns
Quartz Accuracy ±1 Minute a Month at
+25°C, Factory Calibrated
BCD-Coded Year, Month, Date, Day, Hours,
Minutes, and Seconds with Leap Year
Compensation Valid Up to 2100
Power-Fail Write Protection Allows for
±10% VCC Power Supply Tolerance
Lithium Energy Source is Electrically
Disconnected to Retain Freshness Until
Power is Applied for the First Time
UL Recognized
PIN CONFIGURATION
ORDERING INFORMATION
PART
VOLTAGE
RANGE
(V)
TEMP RANGE
PIN-PACKAGE TOP MARK
DS1642-85+
5.0
0°C to +70°C
24 EDIP (0.720a)
DS1642+85
DS1642-100+
5.0
0°C to +70°C
24 EDIP (0.720a)
DS1642+100
+Denotes a lead(Pb)-free/RoHS-compliant package.
A “+" indicates a lead(Pb)-free product. The top mark will include a “+” symbol on lead-free devices.
DS1642
Nonvolatile Timekeeping RAM
www.maxim-ic.com
VCC
A8
A9
WE
OE
A10
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
CE
DQ7
DQ6
DQ5
DQ4
DQ3
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
DS1642
ENCAPSULATED DIP
TOP VIEW
19-5266; Rev 5/10
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相關代理商/技術參數
參數描述
DS1642-70+ 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1642-85 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK PARALLEL 2KBYTE 24PIN EDIP - Bulk
DS1642-85+ 功能描述:實時時鐘 NV Timekeeping 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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