- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄377783 > LTC693 (Linear Technology Corporation) Microprocessor Supervisory Circuits(μP監(jiān)控電路) PDF資料下載
參數(shù)資料
| 型號(hào)： | LTC693 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Microprocessor Supervisory Circuits(μP監(jiān)控電路) |
| 中文描述： | 微處理器監(jiān)控電路（微處理器監(jiān)控電路） |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 261K |
| 代理商： | LTC693 |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
1
LTC692/LTC693
Microprocessor
Supervisory Circuits
I
UL Recognized
I
GuaranteedReset Assertion at V
CC
= 1V
I
1.5mA Maximum Supply Current
I
Fast (35ns Max.) On-Board Gating of RAM Chip
Enable Signals
I
SO8 and SO16 Packaging
I
4.40V Precision Voltage Monitor
I
Power OK/Reset Time Delay:
200ms or Adjustable
I
Minimum External Component Count
I
1
μ
A Maximum Standby Current
I
Voltage Monitor for Power Fail or
Low Battery Warning
I
Thermal Limiting
I
Performance Specified Over Temperature
I
Superior Upgrade for MAX690 Family
The LTC692/LTC693 provide complete power supply moni-
toring and battery control functions for microprocessor
reset, battery backup, CMOS RAM write protection, power
failure warning and watchdog timing. A precise internal
voltage reference and comparator circuit monitor the
power supply line. When an out-of-tolerance condition
occurs, the reset outputs are forced to active states and the
Chip Enable output unconditionally write-protects exter-
nal memory. In addition, the RESET output is guaranteed
to remain logic low even with V
CC
as low as 1V.
The LTC692/LTC693 power the active CMOS RAMs with a
charge pumped NMOS power switch to achieve low drop-
out and low supply current. When primary power is lost,
auxiliary power, connected to the battery input pin, powers
the RAMs in standby through an efficient PMOS switch.
For an early warning of impending power failure, the
LTC692/LTC963 provide an internal comparator with a
user-defined threshold. An internal watchdog timer is
also available, which forces the reset pins to active states
when the watchdog input is not toggled prior to a preset
time-out period.
D
U
ESCRIPTIO
S
FEATURE
U
A
O
PPLICATI
TYPICAL
RESET Output Voltage vs
Supply Voltage
+
+
ADJ
V
IN
V
OUT
10
μ
F
V
IN
≥
7.5V
5V
100
μ
F
0.1
μ
F
μ
P NMI
μ
P
POWER
POWER TO
CMOS RAM
I/O LINE
μ
P RESET
μ
P
SYSTEM
0.1μF
3V
51k
10k
LTC692/3 TA01
LT1086-5
MICROPROCESSOR RESET, BATTERY BACKUP, POWER FAILURE
WARNING AND WATCHDOG TIMING ARE ALL IN A SINGLE CHIP
FOR MICROPROCESSOR SYSTEMS.
LTC692
LTC693
V
BATT
PFI
WDI
RESET
PFO
V
OUT
V
CC
GND
0.1
μ
F
100
SUPPLY VOLTAGE (V)
0
R
3
4
5
4
2
1
0
1
2
3
5
T
= 25°C
EXTERNAL PULL-UP = 10μA
V
BATT
= 0V
LTC692/3 TA02
U
S
A
O
PPLICATI
I
Critical
μ
P Power Monitoring
I
Intelligent Instruments
I
Battery-Powered Computers and Controllers
I
Automotive Systems
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC694-3.3 | 3.3V Microprocessor Supervisory Circuits(3.3VμP監(jiān)控電路) |
| LTC695CSW-3.3 | 3.3V Microprocessor Supervisory Circuits |
| LTC695 | Microprocessor Supervisory Circuits |
| LTC695-3.3 | 3.3V Microprocessor Supervisory Circuits |
| LTC695C | Microprocessor Supervisory Circuits |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6930 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:32.768kHz to 8.192MHz Precision μPower Oscillators |
| LTC6930CDCB-4.19#PBF | 制造商:Linear Technology 功能描述:Silicon Oscillator 8-Pin DFN EP |
| LTC6930CDCB-4.19#TRMPBF | 功能描述:IC OSC SILICON 4.194304MHZ 8-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 可編程計(jì)時(shí)器和振蕩器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 類(lèi)型:振蕩器 - 晶體 計(jì)數(shù):- 頻率:- 電源電壓:2.3 V ~ 5.5 V 電流 - 電源:1.07mA 工作溫度:-30°C ~ 80°C 封裝/外殼:SOT-665 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:SS迷你型-5D 安裝類(lèi)型:表面貼裝 其它名稱:AN8955SSMTXLTR |
| LTC6930CDCB-4.19#TRPBF | 功能描述:IC OSC SILICON 4.194304MHZ 8-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 可編程計(jì)時(shí)器和振蕩器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:45 系列:- 類(lèi)型:溫度 - 補(bǔ)償晶體振蕩器（TCXO） 計(jì)數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:16-SOIC W 安裝類(lèi)型:表面貼裝 |
| LTC6930CDCB-4.19-TRMPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:32.768kHz to 8.192MHz Precision μPower Oscillators |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。