Datasheet > HEF4541BT

HEF4541BT

更新时间： 2024-09-26 11:13:15

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页数	文件大小	规格书
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描述
Programmable timerProduction

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数据手册
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HEF4541BT 数据手册

HEF4541B

Programmable timer

Rev. 6 — 25 November 2021

Product data sheet

1. General description

The HEF4541B is a programmable timer. It consists of a 16-stage binary counter, an integrated

oscillator to be used with external timing components, an automatic power-on reset and output

control logic. The external components R_TCand C_TCdetermines the frequency of the oscillator

within the frequency range 1 Hz to 100 kHz. An external clock signal at input RS can replace the

oscillator. The timer advances on the positive-going transition of RS. A LOW on the auto reset input

(AR) and a LOW on the master reset input (MR) enables the internal power-on reset. A HIGH level

at input MR resets the counter independent on all other inputs. Resetting, disables the oscillator to

provide no active power dissipation.

A HIGH at input AR turns off the power-on reset to provide a low quiescent power dissipation of the

timer. The 16-stage counter divides the oscillator frequency by 2⁸, 2¹⁰, 2¹³or 2¹⁶depending on the

state of the address inputs (A0, A1). The divided oscillator frequency is available at output O. The

phase input (PH) features a complementary output signal. When the mode select input (MODE) is

LOW the timer is a single transition timer and when HIGH the timer is a 2ⁿfrequency divider.

It operates over a recommended V_DDpower supply range of 3 V to 15 V referenced to V_SS(usually

ground). Unused inputs must be connected to V_DD, V_SS, or another input.

2. Features and benefits

•

Wide supply voltage range from 3.0 V to 15.0 V

•

CMOS low power dissipation

High noise immunity

Fully static operation

5 V, 10 V, and 15 V parametric ratings

Standardized symmetrical output characteristics

Complies with JEDEC standard JESD 13-B

ESD protection:

•

HBM JESD22-A114F exceeds 2000 V

MM JESD22-A115-A exceeds 200 V

•

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

3. Ordering information

Table 1. Ordering information

Type number

Package

Temperature range Name

Description

Version

HEF4541BT

-40 °C to +125 °C

SO14

plastic small outline package; 14 leads;

body width 3.9 mm

SOT108-1

12 3 4 5 6 7...14

中文翻译

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HEF4541BT 替代型号

型号	品牌	替代类型	描述	数据表
MC14541BDR2G	ONSEMI	功能相似	Programmable Timer
MC14541BDG	ONSEMI	功能相似	Programmable Timer
HEF4541BT	NXP	功能相似	Programmable timer

与HEF4541BT相关器件

型号	品牌	获取价格	描述	数据表
HEF4541BT,112	NXP	获取价格	HEF4541B - Programmable timer SOIC 14-Pin
HEF4541BT,512	NXP	获取价格	HEF4541B - Programmable timer SOIC 14-Pin
HEF4541BT,518	NXP	获取价格	HEF4541B - Programmable timer SOIC 14-Pin
HEF4541BT,653	NXP	获取价格	HEF4541B - Programmable timer SOIC 14-Pin
HEF4541BTD	ETC	获取价格	Analog Timer Circuit
HEF4541BTD-T	ETC	获取价格	Analog Timer Circuit
HEF4541BT-Q100	NEXPERIA	获取价格	Programmable timerProduction
HEF4541BT-Q100Y	NXP	获取价格	HEF4541B-Q100 - Programmable timer SOIC 14-Pin
HEF4543B	NXP	获取价格	BCD to 7-segment latch/decoder/driver
HEF4543B_09	NXP	获取价格	BCD to 7-segment latch/decoder/driver

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