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參數(shù)資料
| 型號： | MAX7387CMVB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | System Monitoring Oscillator with Watchdog and Power Fail |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO10 |
| 封裝： | 3 X 3 MM, MO-187CBA, MICRO, SOP-10 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 680K |
| 代理商： | MAX7387CMVB |
General Description
The MAX7387/MAX7388 replace ceramic resonators,
crystals, and supervisory functions for microcontrollers
in 3.3V and 5V applications.
The MAX7387/MAX7388 provide a clock source together
with integrated reset, watchdog, and power-fail func-
tions. The watchdog timer is pin programmable and
provides watchdog timeout values in the 16ms to
2048ms range. The power-fail output provides early
warning of power failure. The power-fail threshold on the
MAX7388 is internally set. The MAX7387 also provides
a separate watchdog output that is used as a status
indicator or to control safety-critical system elements.
The MAX7387/MAX7388 clock outputs are factory pro-
grammed to a frequency in the 1MHz to 16MHz range.
Four standard frequencies are available. Other frequen-
cies are available upon request. The maximum operating
supply current is 5.5mA (max) with a clock frequency of
12MHz.
Unlike typical crystal and ceramic resonator oscillator
circuits, the MAX7387/MAX7388 are resistant to EMI
and vibration, and operate reliably at high tempera-
tures. The high-output drive current and absence of
high-impedance nodes make the oscillator invulnerable
to dirty or humid operating conditions.
The MAX7387/MAX7388 are available in 10-pin and 8-pin
MAX packages, respectively. The MAX7387/MAX7388
standard operating temperature range is from -40°C to
+125°C.
Applications
White Goods
Handheld Products
Automotive
Portable Equipment
Appliances and Controls
Microcontroller Systems
Features
Robust Microcontroller Clock and Supervisor in a
Single Package
Integrated Reset, Watchdog, and Power-Fail
Functions
Pin-Programmable Watchdog Timeout
+2.7V to +5.5V Operation
Factory-Trimmed Oscillator
Reset Valid Down to 1.1V Supply Voltage
±10mA Clock-Output Drive Current
±4% Total Accuracy for -40°C to +125°C
±2.75% Total Accuracy for 0°C to +85°C
-40°C to +125°C Temperature Range
8- and 10-Pin MAX Surface-Mount Packages
5.5mA Operating Current (12MHz)
1MHz to 16MHz Factory Preset Frequency
MAX7387/MAX7388
System Monitoring Oscillator with
Watchdog and Power Fail
________________________________________________________________ Maxim Integrated Products
1
19-3896; Rev 1; 1/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
WDI
PFO
GND
1
2
8
7
CLOCK
RST/RST
WDS1
WDS2
VCC
TOP VIEW
3
4
6
5
MAX7388
MAX
Pin Configurations
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG CODE
MAX7387srff -40
oC to +125oC 10 MAX
U10-2
MAX7388srff -40
oC to +125oC 8 MAX
U8-1
Note: “s” is a placeholder for the reset output type. Insert the
symbol found in Table 3 in the place of “s.” “r” is a placeholder
for the power-on reset (POR) voltage. Insert the symbol found in
Table 2 in the place of “r.” “ff” is a placeholder for the nominal
output frequency. Insert the symbol found in Table 4 in the
place of “ff.” For example, MAX7387CMTP describes a device
with 4.38V reset level, open-collector RST output, and a clock
output frequency of 8MHz.
Typical Application Circuit, Functional Diagram, and Selector
Guide appear at end of data sheet.
MAX is a registered trademark of Maxim Integrated Products, Inc.
1
2
3
4
5
10
9
8
7
6
CLOCK
RST/RST
WDI
PFO
WDS2
WDS1
VCC
PFI
MAX7387
TOP VIEW
MAX
WDO
GND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7387CMVB-T | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 System Monitoring Oscillator RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時(shí)器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| MAX7387CMWB | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7387CMWB-T | 制造商:Maxim Integrated Products 功能描述:SYSTEM MONITORING OSCILLATOR WITH W - Tape and Reel |
| MAX7387CSAC | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX7387CSRD | 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
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