MIC1557BM5

更新时间： 2024-01-24 10:19:14

品牌	Logo	应用领域
麦瑞 - MICREL		振荡器模拟波形发生功能信号电路光电二极管
页数	文件大小	规格书
8页	168K
描述
IttyBitty⑩ RC Timer / Oscillator

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MIC1557BM5 技术参数

是否无铅：	含铅	生命周期：	Active
零件包装代码：	SOT-23	包装说明：	SOT-23, 5 PIN
针数：	5	Reach Compliance Code：	unknown
风险等级：	5.71	Is Samacsys：	N
模拟集成电路 - 其他类型：	SQUARE; PULSE; RECTANGULAR	JESD-30 代码：	R-PDSO-G5
JESD-609代码：	e0	长度：	2.91 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	5	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出频率：	5 GHz
封装主体材料：	PLASTIC/EPOXY	封装代码：	LSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	240	认证状态：	COMMERCIAL
座面最大高度：	1.45 mm	最大供电电压 (Vsup)：	18 V
最小供电电压 (Vsup)：	2.7 V	标称供电电压 (Vsup)：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	1.625 mm	Base Number Matches：	1

MIC1557BM5 数据手册

MIC1555/1557

Micrel

MIC1555/1557

IttyBitty™ RC Timer / Oscillator

General Description

Features

The MIC1555 IttyBitty™ CMOS RC timer/oscillator and

MIC1557 IttyBitty CMOS RC oscillator are designed to pro-

vide rail-to-rail pulses for precise time delay or frequency

generation.

• +2.7V to +18V operation

• Low current

<1µA typical shutdown mode (MIC1557)

200µA 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

• <15Ω output on resistance

• No output cross-conduction current spikes

• <0.005%/°C temperature stability

• <0.055%/V supply stability

The devices are similar in function to the industry standard

“555”, without a frequency control (F ) pin or an open-

collector discharge (D) pin. The threshold pin (TH) has

precedence over the trigger (TR) input, ensuring that the

BiCMOS output is off when TR is high.

The MIC1555 may 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 microsec-

onds to hours. In the oscillator mode, the output is used to

provideprecisefeedback, withaminimumofoneresistorand

one capacitor producing a 50% duty cycle square wave.

• Small SOT-23-5 surface mount package

Applications

• Precision timer

• Pulse generation

• Sequential timing

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.

• Time-delay generation

• Missing pulse detector

• Micropower oscillator to 5MHz

• Charge-pump driver

• LED blinker

• Voltage converter

The MIC1555/7 is powered from a +2.7V to +18V supply

voltage.

• Linear sweep generator

• Variable frequency and duty cycle oscillator

• Isolated feedback for power supplies

The MIC1555/7 is available in the SOT-23-5 5-lead package,

and is rated for –40°C to +85°C ambient temperature range.

Ordering Information

Part Number

MIC1555BM5

MIC1557BM5

Temp. Range

–40°C to +85°C

Package

SOT-23-5

Marking

T10

T11

Typical Applications

+5V

100µs

8kHz

MIC1555

MIC1557

OUT

Output

OUT

Output

Standby

Trigger

Enabled

Disabled

TRG

GND

THR

GND

T/T

0.1µF

Monostable (One-Shot)

Astable (Oscillator)

October 1998

MIC1555/1557

12 3 4 5 6 7 8

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与MIC1557BM5相关器件

型号	品牌	描述	获取价格	数据表
MIC1557BM5T&R	MICREL	暂无描述	获取价格
MIC1557BM5TX	MICROCHIP	IC,TIMER,CMOS,TSOP,5PIN,PLASTIC	获取价格
MIC1557YD5	MICREL	IttyBittyÂ® RC Timer/Oscillator	获取价格
MIC1557YM5	MICREL	IttyBitty RC Timer / Oscillator	获取价格
MIC1557YM5TR	MICREL	SQUARE; PULSE; RECTANGULAR, 5MHz, TIMER, PDSO5, LEAD FREE, SOT-23, 5 PIN	获取价格
MIC1557YM5-TR	MICROCHIP	SQUARE; PULSE; RECTANGULAR, 5MHz, TIMER, PDSO5	获取价格

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