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參數(shù)資料
| 型號(hào)： | NE555DR |
| 廠商： | NEC Corp. |
| 英文描述： | PRECISION TIMERS |
| 中文描述： | 精密定時(shí)器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 273K |
| 代理商： | NE555DR |
General Description
is a highly stable device for generating accurate
time delays or oscillation. Additional terminals are provided
for triggering or resetting if desired. In the time delay mode of
operation, the time is precisely controlled by one external re-
sistor and capacitor. For astable operation as an oscillator,
the free running frequency and duty cycle are accurately
controlled with two external resistors and one capacitor. The
circuit may be triggered and reset on falling waveforms, and
the output circuit can source or sink up to 200mA or drive
TTL circuits.
Features
n
Direct replacement for SE555/NE555
n
Timing from microseconds through hours
n
Operates in both astable and monostable modes
n
Adjustable duty cycle
n
Output can source or sink 200 mA
n
Output and supply TTL compatible
n
Normally on and normally off output
Applications
n
Precision timing
n
Pulse generation
n
Sequential timing
n
Time delay generation
n
Pulse width modulation
n
Pulse position modulation
n
Linear ramp generator
Wing Shing Computer Components Co., (H.K.)Ltd.
Homepage:
http://www.wingshing.com
Tel:(852)2341 9276 Fax:(852)2797 8153
E-mail: wsccltd@hkstar.com
Precision Timer
SO-8
RESET
TRIGGER
VOLTAGE
THRESHOLD
VOLTAGE
OUTPUT
DISCHARGE
SWITCH
Low
High
High
High
Irrelevant
Irrelevant
<1/3V
>1/3V
>1/3V
High
Low
High
On
Off
On
Low
>2/3V
<2/3V
DD
DD
DD
DD
DD
As previously established
FUNCTION TABLE
1
Connection Diagram
NE555
NE555M
DIP-8 NE555N
The NE555
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| NE555PSR | PRECISION TIMERS |
| NE555PW | PRECISION TIMERS |
| NE555PWR | PRECISION TIMERS |
| NE555 | NONLINEAR MODEL |
| NE555D | PRECISION TIMERS |
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參數(shù)描述 |
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| NE555DRE4 | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Precision 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 |
| NE555DRG3 | 制造商:Texas Instruments 功能描述: |
| NE555DRG4 | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 Precision 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 |
| NE555DT | 功能描述:計(jì)時(shí)器和支持產(chǎn)品 General Purp Single 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 |
| NE555D-T | 制造商:NXP Semiconductors 功能描述:SQUARE, TIMER, PDSO8 制造商:STMicroelectronics 功能描述:SQUARE, TIMER, PDSO8 |
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