Datasheet > CD4541BH

CD4541BH

更新时间： 2024-11-04 04:36:11

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哈里斯 - HARRIS		/
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描述
CMOS Programmable Timer High Voltage Types (20V Rating)

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CD4541BH 数据手册

Semiconductor

CD4541B

CMOS Programmable Timer

High Voltage Types (20V Rating)

July 1998

Features

Description

• Low Symmetrical Output Resistance, Typically 100Ω

at V = 15V

CD4541B programmable timer consists of a 16-stage binary

counter, an oscillator that is controlled by external R-C compo-

nents (2 resistors and a capacitor), an automatic power-on

reset circuit, and output control logic. The counter increments

on positive-edge clock transitions and can also be reset via the

MASTER RESET input.

• Built-In Low-Power RC Oscillator

• Oscillator Frequency Range . . . . . . . . . . DC to 100kHz

• External Clock (Applied to Pin 3) can be Used Instead

of Oscillator

The output from this timer is the Q or Q output from the 8th,

10th, 13th, or 16th counter stage. The desired stage is chosen

using time-select inputs A and B (see Frequency Select Table).

The output is available in either of two modes selectable via the

MODE input, pin 10 (see Truth Table). When this MODE input is

a logic “1”, the output will be a continuous square wave having

• Operates as 2 Frequency Divider or as a Single-

Transition Timer

• Q/Q Select Provides Output Logic Level Flexibility

• AUTO or MASTER RESET Disables Oscillator During

Reset to Reduce Power Dissipation

a frequency equal to the oscillator frequency divided by 2 .

• Operates With Very Slow Clock Rise and Fall Times

With the MODE input set to logic “0” and after a MASTER

• Capable of Driving Six Low Power TTL Loads, Three

Low-Power Schottky Loads, or Six HTL Loads Over

the Rated Temperature Range

RESET is initiated, the output (assuming Q output has been

N-1

selected) changes from a low to a high state after 2

counts

and remains in that state until another MASTER RESET pulse

is applied or the MODE input is set to a logic “1”.

• Symmetrical Output Characteristics

• 100% Tested for Quiescent Current at 20V

• 5V, 10V, and 15V Parametric Ratings

Timing is initialized by setting the AUTO RESET input (pin 5) to

logic “0” and turning power on. If pin 5 is set to logic “1”, the

AUTO RESET circuit is disabled and counting will not start until

after a positive MASTER RESET pulse is applied and returns

to a low level. The AUTO RESET consumes an appreciable

amount of power and should not be used if low-power operation

• Meets All Requirements of JEDEC Standard No. 13B,

“Standard Speciﬁcations for Description of ‘B’ Series

CMOS Devices”

is desired. For reliable automatic power-on reset, V

be greater than 5V.

should

Ordering Information

TEMP.

PKG.

NO.

The RC oscillator, shown in Figure 2, oscillates with a

frequency determined by the RC network and is calculated

using:

PART NUMBER RANGE ( C)

PACKAGE

CD4541BF

CD4541BE

CD4541BH

CD4541BM

-55 to 125 14 Ld CERDIP

-55 to 125 14 Ld PDIP

-55 to 125 Chip

F14.3

E14.3

Where f is between 1kHz

and 100kHz

----------------------------------

f =

2.3 R

TC TC

and R ≥ 10kΩ and ≈ 2R

-55 to 125 14 Ld SOIC

M14.15

Pinout

CD4541B (CERDIP, PDIP, SOIC)

TOP VIEW

11 NC

AUTO RESET

10 MODE

MASTER RESET

Q/Q SELECT

OUTPUT

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

File Number 1378.1

12 3 4 5 6 7 8

中文翻译

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与CD4541BH相关器件

型号	品牌	获取价格	描述	数据表
CD4541BM	TI	获取价格	CMOS PROGRAMMABLE TIMER HIGH VOLTAGE TYPES(20V RATING)
CD4541BM	NSC	获取价格	Programmable Timer
CD4541BM	HARRIS	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541BM96	TI	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541BM96E4	TI	获取价格	CMOS Programmable Timer High Voltage Types(20V Rating)
CD4541BM96G4	TI	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541BME4	TI	获取价格	CMOS Programmable Timer High Voltage Types (20V Rating)
CD4541BMG4	TI	获取价格	CMOS Programmable Timer High Voltage Types(20V Rating)
CD4541B-MIL	TI	获取价格	CMOS Programmable Timer
CD4541BMJ	TI	获取价格	BINARY COUNTER, CDIP14, CERAMIC, DIP-14

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