參數(shù)資料
型號(hào)： DS1227
英文描述： KickStarter Chip
中文描述： Kickstarter的芯片
文件頁(yè)數(shù)： 2/20頁(yè)
文件大?。?/td> 156K
代理商： DS1227
DS1227
022698 2/20
when they are required, minimizing the energy con-
sumption of the system.
The Kickstarter activates or kickstarts the primary V
CC
output in response to external momentary low-going
signals. Examples of such signals include a clock/ca-
lendar alarm from a DS1283 Watchdog Timekeeper, or
an incoming asynchronous serial data word from a host
PC via the DS1275 Line Powered Transceiver, or a sim-
ple pushbutton switch.
In addition, the DS1227 kickstarts primary system pow-
er in response to activity detected by an external sensor
circuit. In this case, the Kickstarter can be signalled at
regular intervals, typically from a DS1283 Watchdog
Timekeeper, to momentarily apply power to the sensor
and monitor an input for an active response.
An application using the Kickstarter has the capability to
wake-up from a ultra-low power state, perform a task us-
ing minimum energy, and then go back to sleep until the
DS1227 is signalled to kickstart system operation once
again.
PIN DESCRIPTION
PIN
I/O
DESCRIPTION
BOOST
Input
Regulation mode control.
V
DCO
Output
Main DC supply voltage output.
V
DCI
Input
Main DC supply voltage input.
GND
-
System ground.
V
CCO1
Output
Primary switched supply voltage output.
ON1
Input
On control for V
CCO1
. ON1 is negative edge triggered and internally pulled high
via a weak resistor.
INT/ACK
Input/Output
Interrupt output/input; internally pulled low via a weak resistor during output;
level activated via strong high voltage for input.
OFF1
Input
Off control for V
CCO1
; edge-triggered active low.
PWRON1
Output
V
Power On signal output; Indicates when V
is powered on; Some-
times required for controlling external tri-state buffers in systems where micro-
energy management techniques are employed.
V
CCO2
Output
Auxiliary switched supply voltage outputs.
ON2/OFF2
Input
On/Off controls for V
CCO2
/V
CCO3
; level activated.
ON3/OFF3
Input
V
CCO4
Output
Momentarily switched VCC output.
ON4
Input
V
CCO4
trigger; edge activated; active low.
SENSE
Input
Sense input sampled just prior to V
CCO4
off; turns on V
CCO1
if active; active
high.
MODE4
Input/Output
Selects V
CCO4
on time; level sensitive input/current source output.
RXIN
Input
Serial I/O input; On control for V
CCO1
when serial activity detected; edge acti-
vated.
RXOUT
Output
Serial I/O output; Echos incoming serial data from RXIN when V
CCO1
is turned
on.
OSCEXT
Output
Oscillator Signal Output; Gated by internal comparator when BOOST is en-
abled. Continuous when BOOST is disabled.
相關(guān)PDF資料
PDF描述
DS1227S KickStarter Chip
DS1228 Low-Noise, High-Speed, 16-Bit Accurate CMOS Operational Amplifier 8-SOIC -40 to 125
DS1230W-100 3.3V 256k Nonvolatile SRAM
DS1233-10 5V EconoReset
DS1233Z-5 5V EconoReset
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1227S 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:KickStarter Chip
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DS-1229ZJ 制造商:Hikvision USA 功能描述:Camera Wall Mount Bracket9.88In X 3.94In X 7.17In 制造商:HIKVISION 功能描述:CAMERA WALL MOUNT BRACKET 9.88IN X 3.94IN X 7.17IN
DS122E 制造商:Miyama Electric 功能描述:
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