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HEF4541

HEF4541
型号:HEF4541
品牌:NXP NXP
批号:13+
封装:DIP
原价:0.8
数量:85780
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备注:专业分销原装NXP Original
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详细描述

HEF4541

Programmable timer
 
 
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
Rt and Ct 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
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. If the mode select input
(MODE) is LOW or HIGH the timer can be used
respectively as a single transition timer or 2n
frequency
divider.
 
 
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 HEF40106BP  PHI  13+RoHS  DIP14  7740  原装进口现货Original
 HEF40106BT  NXP  13+RoHS  SOP14  5880  原装进口现货Original
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 HEF4013BP  NXP  15+  DIP-14  7880  原装进口现货Original
 HEF4013BT  NXP  13+RoHS  SOP-14  8990  原装进口现货Original
 HEF4015BT  NXP  13+  SOP16  11200  100%全新原装 New in stock
 HEF4051BT  NXP  13+RoHS  SOP-16  8990  专业分销原装NXP Original
 HEF4053BT  NXP  16+  SOP-16  65500  原装进口现货Original
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