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參數(shù)資料
| 型號： | DS1338U-18 |
| 英文描述： | I2C RTC with 56-Byte NV RAM |
| 中文描述： | 的I2C RTC的56字節(jié)非易失RAM |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 563K |
| 代理商： | DS1338U-18 |
1 of 15
REV: 091404
Note:
may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata
.
GENERAL DESCRIPTION
The DS1338 serial real-time clock (RTC) is a low-
power,
full
binary-coded
clock/calendar plus 56 bytes of NV SRAM. Address
and data are transferred serially through an I
2
C
interface. The clock/calendar provides seconds,
minutes, hours, day, date, month, and year
information. The end of the month date is
automatically adjusted for months with fewer than 31
days, including corrections for leap year. The clock
operates in either the 24-hour or 12-hour format with
AM/PM indicator. The DS1338 has a built-in power-
sense circuit that detects power failures and
automatically switches to the battery supply.
APPLICATIONS
Handhelds (GPS, POS Terminal)
Consumer Electronics (Set-Top Box, Digital
Recording, Network Appliance)
Office Equipment (Fax/Printer, Copier)
Medical (Glucometer, Medicine Dispenser)
Telecommunications (Router, Switcher, Server)
Other (Utility Meter, Vending Machine, Thermostat,
Modem)
TYPICAL OPERATING CIRCUIT
CRYSTAL
decimal
(BCD)
FEATURES
RTC Counts Seconds, Minutes, Hours, Date of
the Month, Month, Day of the Week, and Year
with Leap-Year Compensation Valid Up to 2100
Available in a Surface-Mount Package with an
Integrated Crystal (DS1338C)
56-Byte Battery-Backed NV RAM for Data
Storage
I
2
C Serial Interface
Programmable Square-Wave Output Signal
Automatic Power-Fail Detect and Switch Circuitry
Underwriters Laboratory (UL) Recognized
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
TOP MARK
DS1338Z-18
-40°C to +85°C
8 SO (150 mils)
DS1338-18
DS1338Z-3
-40°C to +85°C
8 SO (150 mils)
DS1338-3
DS1338Z-33
-40°C to +85°C
8 SO (150 mils)
DS1338-33
DS1338U-18
-40°C to +85°C
8 SOP
1338
rr-18
1338
rr-3
1338
rr-33
DS1338U-3
-40°C to +85°C
8 SOP
DS1338U-33
-40°C to +85°C
8 SOP
DS1338C-18
-40°C to +85°C
16 SO (300 mils)
DS1338C-18
DS1338C-3
-40°C to +85°C
16 SO (300 mils)
DS1338C-3
DS1338C-33
-40°C to +85°C
16 SO (300 mils)
DS1338C-33
rr = second line, revision level
Pin Configurations appear at end of data sheet.
DS1338
I
2
C RTC with 56-Byte NV RAM
www.maxim-ic.com
I
2
C is a trademark of Philips Corp. Purchase of I
2
C components from
Maxim Integrated Products, Inc., or one of its sublicensed Associated
Companies, conveys a license under the Philips I
C Patent Rights to
use these components in an I
2
C system, provided that the system
conforms to the I
C Standard Specification as defined by Philips.
DS1338
CPU
V
CC
V
CC
V
CC
SDA
SCL
GND
X2
X1
V
CC
RPU
RPU
SQW/OUT
V
BAT
i
RPU = t
R
/ C
B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1338U-3 | I2C RTC with 56-Byte NV RAM |
| DS1338U-33 | I2C RTC with 56-Byte NV RAM |
| DS1338Z-18 | I2C RTC with 56-Byte NV RAM |
| DS1338Z-3 | I2C RTC with 56-Byte NV RAM |
| DS1338Z-33 | I2C RTC with 56-Byte NV RAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1338U-18+ | 功能描述:實(shí)時(shí)時(shí)鐘 I2C Serial RTC w/56 Byte 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 |
| DS1338U-18+T&R | 制造商:Maxim Integrated Products 功能描述:SERIAL RTC 8PIN USOP 1.8V T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC 56BYTE NV RAM 1.8V 8-USOP |
| DS1338U-3 | 功能描述:實(shí)時(shí)時(shí)鐘 I2C Serial RTC w/56 Byte 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 |
| DS1338U-3/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 56BYTE 8USOP - Tape and Reel |
| DS1338U-3+ | 功能描述:實(shí)時(shí)時(shí)鐘 I2C Serial RTC w/56 Byte 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 |
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