HEF4541BT,518 Overview
14-SOIC (0.154, 3.90mm Width) comes in a package with the timer clock. [0] is the frequency of the programmable timer.It is used to pack in Tape & Reel (TR) case. There is no recommended mounting type other than Surface Mount.It is possible to supply a voltage of 4.5V~15.5V to the programmable timer.The type of chips can be divided into Programmable Timer. The operating temperature of this timer clock is -40°C~85°C. To mount this digital timer with Surface Mount. The operating supply voltage is rated at 500μA voltage. It is based on 4541. The timer clock contains 14 pins. The supply voltage of the programmable timer can rate 5V. The sum of the IC chip pins is 14 . The number of the chip's terminations sums up to 14. The timer clock runs quiescent current at 80μA. The number of Timers/Counters on the device is 1.
HEF4541BT,518 Features
Operate frequency at 36MHz
Package / Case: Tape & Reel (TR)
Mounting Type:Surface Mount
Quiescent Current at 80μA
1 Timers/Counters

HEF4541BT,518 Applications
There are a lot of Nexperia USA Inc.
HEF4541BT,518 Programmable Timers & Oscillators applications.

Tamper Detection
Home Automation Sensors
Thermostats
Consumer Electronics
Remote Sensors
White Goods
Electric Vehicles
Always On Systems
Clutch Actuator circuit
Car Door Handle circuit

Factory Lead Time	4 Weeks
Contact Plating	Gold
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154, 3.90mm Width)
Number of Pins	14
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Published	2013
JESD-609 Code	e4
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	14
Type	Programmable Timer
Max Power Dissipation	500mW
Voltage - Supply	4.5V~15.5V
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (Cel)	260
Supply Voltage	5V
Frequency	36MHz
Time@Peak Reflow Temperature-Max (s)	30
Base Part Number	4541
Pin Count	14
Voltage	15V
Operating Supply Current	500μA
Propagation Delay	300 ns
Quiescent Current	80μA
Turn On Delay Time	1.15 μs
Number of Timers/Counters	1
High Level Output Current	-4.2mA
Low Level Output Current	4.2mA
Information Access Method	PARALLEL, DIRECT ADDRESS
Length	8.65mm
Width	3.9mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant