MC1455

更新时间： 2024-11-26 22:03:35

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
10页	151K
描述
Timing Circuit

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中文翻译

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数据手册

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MC1455 数据手册

MC1455, MC1455B,

NCV1455B

Timers

The MC1455 monolithic timing circuit is a highly stable controller

capable of producing accurate time delays or oscillation. Additional

terminals are provided for triggering or resetting if desired. In the time

delay mode, time is precisely controlled by one external resistor and

capacitor. For astable operation as an oscillator, the free−running

frequency and the duty cycle are both accurately controlled with two

external resistors and one capacitor. The circuit may be triggered and

reset on falling waveforms, and the output structure can source or sink

up to 200 mA or drive MTTL circuits.

• Direct Replacement for NE555 Timers

• Timing from Microseconds through Hours

• Operates in Both Astable and Monostable Modes

• Adjustable Duty Cycle

http://onsemi.com

MARKING

DIAGRAMS

XXXXXXXXX

AWL

YYWW

P1 SUFFIX

PLASTIC PACKAGE

CASE 626

• High Current Output Can Source or Sink 200 mA

• Output Can Drive MTTL

• Temperature Stability of 0.005% per °C

• Normally ON or Normally OFF Output

XXXXXX

ALYW

D SUFFIX

PLASTIC PACKAGE

CASE 751

= Specific Device Code

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

1.0 k

Load

MT2

MT1

20ꢀM

10 k

MC1455

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page ___ of this data sheet.

(Create − Named − OrderingInfoText.)

0.01 mF

1.0 mF

0.1 mF

1N4003

−10 V

3.5 k

−

10 mF

1N4740

t = 1.1; R and C = 22 sec

Time delay (t) is variable by

changing R and C (see Figure 16).

250 V

Figure 1. 22 Second Solid State Time Delay Relay Circuit

Reset

700

Control

Voltage

0.01 mF

Discharge

MC1455

5 k

Threshold

Discharge

Output

Threshold

2.0 k

Output

Comp

Flip

Flop

Gnd

Trigger

Sink

−

Control Voltage

Source

5 k

Inhibit/

Reset

Comp

Trigger

Test circuit for measuring DC parameters (to set output and

measure parameters):

a) When V w 2/3 V , V is low.

−

b) When V v 1/3 V , V is high.

c) When V is low, Pin 7 sinks current. To test for Reset, set V

Gnd

Reset

c) high, apply Reset voltage, and test for current flowing into Pin 7.

c) When Reset is not in use, it should be tied to V

Figure 2. Representative Block Diagram

Figure 3. General Test Circuit

Semiconductor Components Industries, LLC, 2004

Publication Order Number:

MC1455/D

March, 2004 − Rev. 8

12 3 4 5 6 7...10

中文翻译

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与MC1455相关器件

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MC1455_06	ONSEMI	获取价格	Timers
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MC145500L	MOTOROLA	获取价格	PCM Codec-Filter Mono-Circuit
MC145500L	NXP	获取价格	A/MU-LAW, PCM CODEC, CDIP16, CERAMIC, DIP-16
MC145500P	MOTOROLA	获取价格	暂无描述
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MC145501L	MOTOROLA	获取价格	PCM Codec-Filter Mono-Circuit
MC145502	MOTOROLA	获取价格	PCM Codec-Filter Mono-Circuit
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MC145502FN	MOTOROLA	获取价格	PCM Codec-Filter Mono-Circuit

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