HEF4541BT,653 datasheet, PDF - EEWORLD Datasheet

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HEF4541BT,653: DescriptionTimers and support productsHEF4541BT/SO14/REEL13//; CategoryThe embedded processor and controller Microcontrollers and processors; File Size827KB，16 Pages; ManufacturerNexperia; Websitehttps://www.nexperia.com

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HEF4541BT,653 Overview

Timers and support productsHEF4541BT/SO14/REEL13//

HEF4541BT,653 Parametric

Parameter Name	Attribute value
Brand Name	Nexperia
Maker	Nexperia
Parts packaging code	SOIC
package instruction	SOP,
Contacts	14
Manufacturer packaging code	SOT108-1
Reach Compliance Code	unknown
ECCN code	EAR99
External data bus width
Information access methods	PARALLEL, DIRECT ADDRESS
JESD-30 code	R-PDSO-G14
JESD-609 code	e4
length	8.65 mm
Humidity sensitivity level	3
Number of terminals	14
Number of timers	1
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage	15 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.9 mm
uPs/uCs/peripheral integrated circuit type	TIMER, PROGRAMMABLE

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HEF4541B

Programmable timer

Rev. 5 — 15 December 2015

Product data sheet

1. General description

The HEF4541B is a programmable timer which 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 frequency of the oscillator is determined by the external

components R

and C

within the frequency range 1 Hz to 100 kHz. This oscillator may

be replaced by an external clock signal at input RS, 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 2

, 2

or 2

depending 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 2

frequency divider.

It operates over a recommended V

power supply range of 3 V to 15 V referenced to V

(usually ground). Unused inputs must be connected to V

, V

, or another input.

2. Features and benefits



Fully static operation

5 V, 10 V, and 15 V parametric ratings

Standardized symmetrical output characteristics

Operates across the automotive temperature range

40 C

to +85

C

Complies with JEDEC standard JESD 13-B

3. Ordering information

Table 1.

Ordering information

All types operate from





C to +85



Type number

HEF4541BT

Package

Name

SO14

Description

plastic small outline package; 14 leads; body width 3.9 mm

Version

SOT108-1

HEF4541BT,653 Related Products

	HEF4541BT,653
Description	Timers and support productsHEF4541BT/SO14/REEL13//
Brand Name	Nexperia
Maker	Nexperia
Parts packaging code	SOIC
package instruction	SOP,
Contacts	14
Manufacturer packaging code	SOT108-1
Reach Compliance Code	unknown
ECCN code	EAR99
Information access methods	PARALLEL, DIRECT ADDRESS
JESD-30 code	R-PDSO-G14
JESD-609 code	e4
length	8.65 mm
Humidity sensitivity level	3
Number of terminals	14
Number of timers	1
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.75 mm
Maximum supply voltage	15 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	3.9 mm
uPs/uCs/peripheral integrated circuit type	TIMER, PROGRAMMABLE

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