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參數(shù)資料
| 型號： | DS1673 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Portable System Controller(便攜式系統(tǒng)控制器) |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 135K |
| 代理商： | DS1673 |
DS1673
Portable System Controller
DS1673
PRELIMINARY
030598 1/18
FEATURES
Provides Real Time Clock:
– Counts seconds, minutes, hours, date of the
month, month, day of the week, and year with
leap year compensation valid up to 2100
– Power control circuitry supports system power
on from day/time alarm
Microprocessor monitor:
– Halts microprocessor during power–fail
– Automatically restarts microprocessor after
power failure
– Monitors push–button for external override
– Halts and resets an out of control microproces-
sor
NV RAM control:
– Automatic battery backup and write protection to
external SRAM
3–channel, 8–bit analog–to–digital converter
Simple three–wire interface
+3.0 or +5.0 volt operation
ORDERING INFORMATION
DS1673E – X
DS1673S – X
20–Pin TSSOP
20–Pin SOIC
3 +3 volt operation
5 +5 volt operation
PIN ASSIGNMENT
ST
V
CC
X1
X2
AIN0
AIN1
AIN2
RST
BLE
BHE
V
BAT
V
CCO
SCLK
I/O
CS
CEI
CEOL
CEOH
INT
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
20–PIN SOIC
20–PIN TSSOP
DESCRIPTION
The Portable System Controller is a circuit which incor-
porates many of the functions necessary for low power
portable products integrated into one chip. The DS1673
provides a Real Time Clock, NV RAM controller, micro-
processor monitor, and a 3–channel 8–bit analog–to–
digital converter. Communication with the DS1673 is
established through a simple 3–wire interface.
The Real Time Clock (RTC) provides seconds, minutes,
hours, day, date, month, and year information with leap
year compensation. The RTC also provides an alarm
interrupt. This interrupt works when the DS1673 is pow-
ered by the system power supply or when in battery
backup operation so the alarm can be used to wake up a
system that is powered down.
Automatic backup and write protection of external
SRAM is provided through the V
CCO
, CEOL, and CEOH
pins. The backup energy source used to power the RTC
is also used to retain RAM data in the absence of V
CC
through the V
CCO
pin. The chip enable outputs to RAM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1673-3 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Portable System Controller |
| DS1673-5 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Portable System Controller |
| DS1673E-3 | 功能描述:實(shí)時時鐘 Portable System Controller 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1673E-3/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC CTRLR SYSTEM PORT 3V 20-TSSOP |
| DS1673E-3/T&R | 功能描述:實(shí)時時鐘 Portable System Controller 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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