CD4541

更新时间： 2024-11-03 22:40:27

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	80K
描述
Programmable Timer

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中文翻译

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数据手册

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CD4541 数据手册

October 1987

Revised March 1999

CD4541BC

Programmable Timer

■ Oscillator frequency range ≈ DC to 100 kHz

General Description

■ Oscillator may be bypassed if external clock is available

(apply external clock to pin 3)

The CD4541BC Programmable Timer is designed with a

16-stage binary counter, an integrated oscillator for use

with an external capacitor and two resistors, output control

logic, and a special power-on reset circuit. The special fea-

tures of the power-on reset circuit are first, no additional

static power consumption and second, the part functions

across the full voltage range (3V–15V) whether power-on

reset is enabled or disabled.

■ Automatic reset initializes all counters when power turns

■ External master reset totally independent of automatic

reset operation

■ Operates at 2ⁿfrequency divider or single transition

timer

Timing and the counter are initialized by turning on power,

if the power-on reset is enabled. When the power is

already on, an external reset pulse will also initialize the

timing and counter. After either reset is accomplished, the

oscillator frequency is determined by the external RC net-

work. The 16-stage counter divides the oscillator frequency

by any of 4 digitally controlled division ratios.

■ Q/Q select provides output logic level flexibility

■ Reset (auto or master) disables oscillator during reset-

ting to provide no active power dissipation

■ Clock conditioning circuit permits operation with very

slow clock rise and fall times

■ Wide supply voltage range—3.0V to 15V

■ High noise immunity—0.45 V_DD(typ.)

Features

■ Available division ratios 2⁸, 2¹⁰, 2¹³, or 2¹⁶

■ 5V–10V–15V parameter ratings

■ Symmetrical output characteristics

■ Increments on positive edge clock transitions

■ Maximum input leakage 1 µA at 15V over full tempera-

ture range

■ Built-in low power RC oscillator (±2% accuracy over

temperature range and ±10% supply and ±3% over pro-

cessing @ < 10 kHz)

■ High output drive (pin 8) min. one TTL load

Ordering Code:

Order Number Package Number

Package Description

CD4541BCN

N14A

14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

CD4541BCM

M14A

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Pin Assignments for DIP and SOIC

N.C.—Not connected

Top View

DS006001.prf

www.fairchildsemi.com

12 3 4 5 6 7 8

中文翻译

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与CD4541相关器件

型号	品牌	获取价格	描述	数据表
CD4541_12	UTC	获取价格	PROGRAMMABLE TIMER
CD4541_15	UTC	获取价格	PROGRAMMABLE TIMER
CD4541B	HARRIS	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541B	TI	获取价格	CMOS PROGRAMMABLE TIMER HIGH VOLTAGE TYPES(20V RATING)
CD4541B	HGSEMI	获取价格	可编程定时器
CD4541B_10	TI	获取价格	CMOS Programmable Timer High Voltage Types(20V Rating)
CD4541B_101	TI	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541B_16	TI	获取价格	CMOS Programmable Timer
CD4541BC	FAIRCHILD	获取价格	Programmable Timer
CD4541BC	NSC	获取价格	Programmable Timer

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