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參數(shù)資料
| 型號： | DS1670S |
| 英文描述： | Portable System Controller |
| 中文描述： | 便攜式系統(tǒng)控制器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 252K |
| 代理商： | DS1670S |
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122800
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
after power failure
Monitors pushbutton for external override
Halts and resets an out of control
microprocessor
NV RAM control:
Automatic battery backup and write
protection to external SRAM
3-channel, 8-bit analog-to-digital converter
Simple 3-wire interface
3.3V operation
microprocessor
PIN ASSIGNMENT
Package Dimension Information can be found at:
http://www.dalsemi.com/datasheets/mechdwg.html
ORDERING INFORMATION
DS1670E
20-pin TSSOP
DS1670S
20-pin SOIC
DESCRIPTION
The Portable System Controller is a circuit, which incorporates many of the functions necessary for low
power portable products integrated into one chip. The DS1670 provides a Real Time Clock, NV RAM
controller, microprocessor monitor, and a 3-channel, 8-bit analog-to-digital converter. Communication
with the DS1670 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
DS1670 is powered 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 an 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 (
CEOL
and
CEOH
) are
controlled during power transients to prevent data corruption.
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10
20
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15
14
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12
11
ST
V
CC
X1
X2
AIN0
AIN1
AIN2
RST
BLE
BHE
V
BAT
V
CCO
SCLK
I/O
CS
CEI
CEOL
CEOH
INT
GND
20-Pin TSSOP (4.4mm)
20-Pin SOIC (300 mil)
DS1670
Portable System Controller
www.dalsemi.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS17285 | 3V/5V Real-Time Clock |
| DS17285-3 | 3V/5V Real-Time Clock |
| DS17285-5 | 3V/5V Real-Time Clock |
| DS17285E-3 | 3V/5V Real-Time Clock |
| DS17285E-5 | 3V/5V Real-Time Clock |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1670S+ | 功能描述:實(shí)時(shí)時(shí)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(shí)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 |
| DS1671H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Clock Driver |
| DS1671J-8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Clock Driver |
| DS-1671ZJ | 制造商:Hikvision USA 功能描述:4" Indoor Ceiling Embedded Mount |
| DS1672 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Low Voltage Serial Timekeeping Chip |
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