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NXP HEF4541BT IC Programmable Timer, CMOS, 36MHZ 14SOIC

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HEF4541BT NXP Semiconductors Programmable Timer IC 36MHz 14-SOIC (0.154", 3.90mm Width)

NXP HEF4541BT  IC Programmable Timer, CMOS, 36MHZ 14SOIC

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NXP HEF4541BT Programmable Timer 36MHz, 3 → 15 V, 14-Pin SOIC

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 RTC and CTC 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 28, 210, 213 or 216 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 2n frequency divider.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

NXP HEF4541BT IC, 4000 LOCMOS, SMD, 4541, SOIC14, Frequency:100kHz, Supply Voltage Min:5V, Supply Voltage Max:15V, Digital IC Case:SOIC, No. of Pins:14, Operating Temperature Min:-40°C, Operating Temperature Max:70°C, Packaging:Each, MSL:MSL 1 - , RoHSDescription

  • 4000 LOCMOS, SMD, 4541, SOIC14
  • Clock External Input:No
  • Frequency:100kHz
  • Supply Voltage Range:5V to 15V
  • IC Case Style:SOIC
  • No. of Pins:14
  • Operating Temperature Range:-40°C to +70°C
  • Case Style:SOIC
  • Max Operating Temperature:70°C
  • Min Temperature Operating:-40°C
  • Base Number:4541
  • IC Generic Number:4541
  • Logic Function Number:4541
  • Max Supply Voltage:15V
  • Min Supply Voltage:3V
  • Termination Type:SMD
  • Logic IC Base Number:4541
  • Logic IC Family:4000 CMOS
  • Logic IC Function:Programmable Oscillator Timer
  • No. of Gates:1
  • Supply Voltage:15V

Additional Information

HEF4541BT
Click here to Download Datasheet I
Click here to Download Datasheet II
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