参数资料
| 型号： | MIC1555YM5 TR |
| 厂商： | Micrel Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC OSC MONO TIMING 5MHZ SOT23-5 |
| 标准包装： | 1 |
| 系列： | IttyBitty® |
| 类型： | 555 型，计时器/振荡器（单路） |
| 频率： | 5MHz |
| 电源电压： | 2.7 V ~ 18 V |
| 电流 - 电源： | 350µA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SC-74A，SOT-753 |
| 包装： | 标准包装 |
| 供应商设备封装： | SOT-23-5 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 1113 (CN2011-ZH PDF) |
| 其它名称： | 576-2576-6 |
MIC1555/1557
IttyBitty
RC Timer/Oscillator
IttyBitty is a registered trademark of Micrel, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
March 11, 2014
Revision 6.0
General Description
The MIC1555 IttyBitty
CMOS RC timer/oscillator and
MIC1557 IttyBitty
CMOS RC oscillator are designed to
provide rail-to-rail pulses for precise time delay or
frequency generation.
The devices are similar in function to the industry standard
“555”, without a frequency control (FC) pin or an open-
collector discharge (D) pin. The threshold pin (THR) has
precedence over the trigger (TRG) input, ensuring that the
BiCMOS output is off when TRG is high.
The MIC1555 can be used as an astable (oscillator) or
monostable (one-shot) with separate threshold and trigger
inputs. In the one-shot mode, the output pulse width is
precisely controlled by an external resistor and a capacitor.
Time delays may be accurately controlled from micro-
seconds to hours. In the oscillator mode, the output is
used to provide precise feedback, with a minimum of one
resistor and one capacitor producing a 50% duty cycle
square wave.
The MIC1557 is designed for astable (oscillator) operation
only, with a chip select/reset (CS) input for low power shut-
down. One resistor and one capacitor provide a 50% duty
cycle square wave. Other duty-cycle ratios may be
produced using two diodes and two resistors.
The MIC1555/7 is powered from a +2.7V to +18V supply
voltage and is rated for –40°C to +85°C ambient
temperature range. The MIC1555/7 is available in SOT-23-
5, and thin SOT23-5 5-pin packages. A low profile, ultra-
thin, (UTDFN), version of the MIC1555 (with chip select) is
also available.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
+2.7V to +18V operation
Low current
<1A typical shutdown mode (MIC1557)
200A typical (TRG and THR low) at 3V supply
Timing from microseconds to hours
“Zero” leakage trigger and threshold inputs
50% square wave with one resistor, one capacitor
Threshold input precedence over trigger input
<15 output on resistance
No output cross-conduction current spikes
<0.005%/°C temperature stability
<0.055%/V supply stability
10-pin ultra-thin DFN package (2mm × 2mm × 0.4mm)
Small SOT-23-5 surface mount package
Applications
Precision timer
Pulse generation
Sequential timing
Time-delay generation
Missing pulse detector
Micropower oscillator to 5MHz
Charge-pump driver
LED blinker
Voltage converter
Linear sweep generator
Variable frequency and duty cycle oscillator
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相关代理商/技术参数 |
参数描述 |
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| MIC1555YMU-T5 | 功能描述:555 Type, Timer/Oscillator (Single) IC 5MHz 10-XFDFN Exposed Pad 制造商:microchip technology 系列:IttyBitty? 包装:剪切带（CT） 零件状态:停产 类型:555 型，计时器/振荡器（单路） 计数:- 频率:5MHz 电压 - 电源:2.7 V ~ 18 V 电流 - 电源:350μA 工作温度:-40°C ~ 85°C 封装/外壳:10-XFDFN 裸露焊盘 供应商器件封装:10-UTDFN（2x2） 安装类型:表面贴装 标准包装:1 |
| MIC1555YMU-TR | 功能描述:IC OSC SINGLE TIMER 5MHZ UTMLF 制造商:microchip technology 系列:IttyBitty? 包装:剪切带（CT） 零件状态:Digi-Key 停止供應 类型:555 型，计时器/振荡器（单路） 计数:- 频率:5MHz 电压 - 电源:2.7 V ~ 18 V 电流 - 电源:350μA 工作温度:-40°C ~ 85°C 封装/外壳:10-XFDFN 裸露焊盘 供应商器件封装:10-UTDFN（2x2） 安装类型:表面贴装 基本零件编号:MIC1555 标准包装:1 |
| MIC1557 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:IttyBitty RC Timer / Oscillator |
| MIC1557BM5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC1557BM5 TR | 功能描述:IC OSC MONO TIMING 5MHZ SOT23-5 RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 可编程计时器和振荡器 系列:IttyBitty® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:45 系列:- 类型:温度 - 补偿晶体振荡器（TCXO） 计数:- 频率:25MHz 电源电压:3.135 V ~ 3.465 V 电流 - 电源:1.5mA 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 包装:管件 供应商设备封装:16-SOIC W 安装类型:表面贴装 |
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