CD4541BF

Description：CMOS PROGRAMMABLE TIMER - HIGH V
Series：-

SKU:96c8bf08b1b5 Category: Programmable Timers and Oscillators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：CMOS PROGRAMMABLE TIMER - HIGH V
Series：-
Package：Tube
Mfr：Texas Instruments
Type：Programmable Timer
Count：65536
Frequency：100kHz ~ 6MHz
Voltage - Supply：3V ~ 18V
Operating Temperature：-55°C ~ 125°C (TA)
Package / Case：14-CDIP (0.300", 7.62mm)
Supplier Device Package：14-CDIP
Mounting Type：Through Hole
Current - Supply：100 µA
Grade：-
Qualification：-

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CD4541BF

Overview

The CD4541BF is a CMOS programmable timer manufactured by Texas Instruments, housed in a 14-lead ceramic dual in-line (CDIP) package. It integrates a 16-stage binary counter, an RC oscillator, and power-on reset logic. The device operates within a supply voltage range of 3V to 20V and supports a temperature range of -55°C to 125°C. Key electrical parameters include a maximum quiescent current of 100µA at 20V and a typical output resistance of 100Ω at 15V. The oscillator frequency ranges from DC to 100kHz, with external clocking capability on Pin 3.

Feature Summary

Built-in low-power RC oscillator with frequency range from DC to 100kHz
Configurable as a 2^N frequency divider or single-transition timer via MODE input
Auto Reset and Master Reset inputs disable the oscillator during reset to reduce power dissipation
Q/Q Select pin provides flexible output logic level selection

Applications

Digital timing circuits requiring precise pulse counting
Frequency division applications using selectable counter stages
Systems requiring automatic power-on reset initialization

Procurement Notes

Verify that the ordering suffix 'F' corresponds to the Ceramic Dual In-Line (CDIP) package variant. Confirm RoHS compliance status, as the datasheet indicates this specific package type may not be RoHS compliant compared to plastic variants. Ensure the full part number CD4541BF is used for accurate identification.

Selection Notes

Select the CD4541BF when hermetic sealing or high-temperature reliability (-55°C to 125°C) is required. This ceramic package variant differs from the plastic SOIC or PDIP options. Verify that the application can accommodate the larger physical footprint and lead spacing associated with the CDIP-14 package.

Part Context

The CD4541B series consists of CMOS programmable timers featuring a 16-stage binary counter and internal oscillator. The 'BF' suffix specifically denotes the 14-lead Ceramic Dual In-Line Package (CDIP). Other variants include BE (PDIP), BM (SOIC), and BPW (TSSOP), all sharing the same core functionality but differing in packaging and material composition.