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參數(shù)資料
| 型號： | MAX7378CRTP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Silicon Oscillator with Low-Power Frequency Switching and Reset Output |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封裝： | MO-187CAA, MICRO, SOP-8 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 619K |
| 代理商： | MAX7378CRTP |
General Description
The MAX7378 dual-speed silicon oscillator with reset, is
a replacement for ceramic resonators, crystals, crystal-
oscillator modules, and discrete reset circuits. The
MAX7378 provides the primary and secondary clock
source and reset function for microcontrollers in 3V,
3.3V, and 5V applications. The MAX7378 features a
factory-programmed high-speed oscillator, a
32.768kHz oscillator, a clock selector input, and a
microprocessor (μP) power-on-reset (POR) supervisor.
The clock output can be switched at any time between
the high-speed clock and the 32.768kHz clock for low-
power operation. Switchover is synchronized internally
to provide glitch-free clock switching.
Unlike typical crystal and ceramic resonator oscillator
circuits, the MAX7378 is resistant to vibration and EMI.
The high-output-drive current and absence of high-
impedance nodes make the oscillator less susceptible
to dirty or humid operating conditions. With a wide
operating temperature range as standard, the
MAX7378 is a good choice for demanding home appli-
ance, industrial, and automotive environments.
The MAX7378 is available in an 8-pin μMAX
package.
Refer to the MAX7384 data sheet for frequencies
≥
10MHz. The MAX7378 standard operating tempera-
ture range is -40
°
C to +125
°
C. See the
Applications
Information
section for the extended operating temper-
ature range.
Applications
White Goods
Automotive
Consumer Products
Appliances and Controls
Handheld Products
Portable Equipment
Microcontroller (μC) Systems
Features
2.7V to 5.5V Operation
Accurate High-Speed Oscillator: 600kHz to 10MHz
Accurate Low-Speed 32kHz Oscillator
Glitch-Free Switch Between High Speed and Low
Speed at Any Time
Reset Output Holds the μC in Reset for 100μs
After Clock Startup
±10mA Clock-Output Drive Capability
2% Initial Accuracy
±50ppm/
°
C Temperature Coefficient
50% ±7% Output Duty Cycle
5ns Output Rise and Fall Time
Low Jitter: 160ps(Peak-to-Peak)at 8MHz
2.4mA Fast-Mode Operating Current (8MHz)
11μA Slow-Mode Operating Current (32kHz)
-40
°
C to +125
°
C Temperature Range
M
Silicon Oscillator with Low-Power
Frequency Switching and Reset Output
________________________________________________________________
Maxim Integrated Products
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.
1
Ordering Information
19-3350; Rev 0; 7/04
Pin Configuration appears at end of data sheet.
MAX7378
CLOCK
V
L
OSC1
OSC2
μ
C
RST
I/O PORT
V
CC
SUPPLY VOLTAGE
ENABLE
RST/RST
SPEED
Typical Application Circuit
μMAX is a registered trademark of Maxim Integrated Products, Inc.
PART
TEMP RANGE
RESET
OUTPUT
PIN-
PACKAGE
MAX7378A _ _ _
-40
o
C to +125
o
C
Active high
push-pull
8 μMAX
MAX7378B _ _ _
-40
o
C to +125
o
C
Active low
push-pull
8 μMAX
MAX7378C _ _ _ -40
o
C to +125
o
C Open drain
8 μMAX
Standard version is shown in bold. The first letter after the part
number designates the reset output option. Insert the letter cor-
responding to the desired reset threshold level from Table 1 in
the next position. Insert the two-letter code from Table 2 in the
remaining two positions for the desired frequency range. See
Table 3 for standard part numbers.
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相關(guān)代理商/技術(shù)參數(shù) |
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| MAX737C/D | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 -15V Inverting Current-Mode PWM Regulator RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX737CPD | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX737CPD+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12V- Inverting DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX737CWE | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12V- Inverting DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX737CWE+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 12V- Inverting DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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