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Part Name(s) : 74HC5555 74HC5555D 74HC5555N 74HC5555U 74HCT5555 74HCT5555D 74HCT5555N 74HCT5555U Philips
Philips Electronics
Description : Programmable delay timer with oscillator View

GENERAL DESCRIPTION
The 74HC/HCT5555 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

FEATURES
• Positive and negative edge triggered
• Retriggerable or non-retriggerable
Programmable delay
   minimum: 100 ns
   maximum: depends on input
   frequency and division ratio
• Divide-by range of 2 to 224
• Direct reset terminates output
   pulse
• Very low power consumption in
   triggered start mode
• 3 oscillator operating modes:
   – RC oscillator
   – Crystal oscillator
   – External oscillator
• Device is unaffected by variations
   in temperature and VCC when using
   an external oscillator
• Automatic power-ON reset
• Schmitt trigger action on both
   trigger inputs
• Direct drive for a power transistor
• Low power consumption in active
   mode with respect to TTL type
   timers
• High precision due to digital timing
• Output capability: 20 mA
• ICC category: MSI.

APPLICATIONS
• Motor control
• Attic fan timers
delay circuits
• Automotive applications
• Precision timing
• Domestic appliances.

Part Name(s) : LS7210 LS7210-S LSI
LSI Corporation
Description : Programmable DIGITAL delay timer View

DESCRIPTION:
The LS7210 is a monolithic MOS integrated circuit Programmable digital timer that can generate a delay in the range of 6ms to infinity. The delay is programmed by 5 binary weighted input bits in combination with the time base provided. The chip can be operated in four different modes: delayed Operate, delayed Release, Dual delay and One Shot. These modes are selected by the control inputs A and B.

FEATURES:
Programmable delay from 6 ms to "Infinity"
• Can be Cascaded for Sequential Events or Extended delay
• +4.75V to +15V Operation (Vss -VDD)
• On Chip oscillator or External Clock time base
• High Noise Immunity
• LS7210 (DIP), LS7210-S (SOIC)-See Figure 1

Part Name(s) : 74HC5555D,118 74HC5555 74HC5555D 74HC5555N 74HC5555U 74HCT5555 74HCT5555D 74HCT5555N 74HCT5555U NXP
NXP Semiconductors.
Description : Programmable delay timer with oscillator View

GENERAL DESCRIPTION
The 74HC/HCT5555 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

FEATURES
• Positive and negative edge triggered
• Retriggerable or non-retriggerable
Programmable delay
   minimum: 100 ns
   maximum: depends on input
   frequency and division ratio
• Divide-by range of 2 to 224
• Direct reset terminates output
   pulse
• Very low power consumption in
   triggered start mode
• 3 oscillator operating modes:
   – RC oscillator
   – Crystal oscillator
   – External oscillator
• Device is unaffected by variations
   in temperature and VCC when using
   an external oscillator
• Automatic power-ON reset
• Schmitt trigger action on both
   trigger inputs
• Direct drive for a power transistor
• Low power consumption in active
   mode with respect to TTL type
   timers
• High precision due to digital timing
• Output capability: 20 mA
• ICC category: MSI.

APPLICATIONS
• Motor control
• Attic fan timers
delay circuits
• Automotive applications
• Precision timing
• Domestic appliances.

Part Name(s) : LS7211 LS7212 LS7211-S LS7212-S LSI
LSI Corporation
Description : Programmable DIGITAL delay timer View

DESCRIPTION:
The LS7211/LS7212 are monolithic CMOS integrated circuits for generating digitally Programmable delays. The delay is controlled by 8 binary weighted inputs, WB0-WB7, in conjunction with an applied clock or oscillator frequency.

FEATURES:
• 8-bit Programmable delay from nanoseconds to days
• On chip oscillator (RC or Crystal) or external clock time base
• Selectable prescaler for real time delay generation based on 50Hz/60Hz time base or 32.768KHz watch crystal
• Four operating modes
• Reset input for delay abort
• Low quiescent and operating current
• Direct relay drive
• +4V to +18V operation (VDD-VSS)
• LS7211/LS7212 (DIP), LS7211-S/LS7212-S (SOIC)-See Figure 1


Part Name(s) : LM2240 LM2240N National-Semiconductor
National ->Texas Instruments
Description : Programmable timer/Counter View

General Description

The LM2240 Programmable timer/Counter is a monolithic controller capable of both monostable and astable operation. Monostable operation allows accurate microsecond to five day time delays. Long delays, up to three years, can easily be generated by cascading two timers. The timer consists of a time-base oscillator, Programmable 8-bit counter and control flip-flop. An external resistor-capacitor (RC) network sets the oscillator frequency and allows delay times from 1 RC to 255 RC to be selected. In the astable mode of operation, a single RC network sets the base frequency. The frequencies of the squarewaves at the 8 outputs are each at different factors of 2 from the base frequency. If 2 or more of the outputs are shorted together, various pulse pat terns can be generated. These frequencies or pulse patterns can also easily be synchronized to an external signal. The trigger, reset and outputs are all TTL and CMOS compatible for easy interface with digital systems. The timer’s high accuracy and versatility in producing a wide range of time delays makes it ideal as a direct replacement for me chanical or electromechanical devices.



Features

Accurate timing from microseconds to days

Programmable delays from 1 RC to 255 RC

TTL and CMOS compatible outputs

Timing directly proportional to RC time constant

High accuracy

External sync and modulation capability

Wide supply voltage range

Excellent supply voltage rejection


Part Name(s) : SL4541BD SL4541BN SL4541B SLS
System Logic Semiconductor
Description : Programmable timer View

Programmable timer High-Performance Silicon-Gate CMOS

The SL4541 Programmable timer consists of a 16-stage binary counter, an oscillator that is controlled by external R-C components (2 resistors and a capacitor), an automatic power-on reset circuit, and output control logic. The counter increments on positive-edge clock transitons and can also be reset via the MASTER RESET input.

• Operating Voltage Range: 3.0 to 18 V
• Maximum input current of 1 μA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
• Noise margin (over full package temperature range):
    1.0 V min @ 5.0 V supply
    2.0 V min @ 10.0 V supply
    2.5 V min @ 15.0 V supply

Part Name(s) : HCC4541B HCC4541BF HCF4541B HCF4541BC1 HCF4541BEY HCF4541BM1 ST-Microelectronics
STMicroelectronics
Description : Programmable timer View

DESCRIPTION

The HCC/HCF4541B Programmable timer is composed of a 16-stage binary counter, an oscillator controlled by2 external resistorsand a capacitor, an output control logic and an automatic power-on reset circuit. The counter varies on positive-edge clock transation and it can be cleared by the MASTER RESET input. The output from this timer is the Q or Q output from the 8th, 13th, or 16th counter stage. The choice of the stage depends on the time select inputs A or B (see frequency selection table).



■ 16 STAGE BINARI COUNTER

■ LOW SYMMETRICAL OUTPUT RESISTANCE, TYPICALLY 100 OHM AT VDD = 15V

oscillator FREQUENCY RANGE : DC TO 100kHz

■ AUTO OR MASTER RESET DISABLES oscillator DURING RESET TO REDUCE POWER DISSIPATION

■ OPERATES with VERY SLOW CLOCK RISE AND FALL TIMES

■ BUILT-IN LOW-POWER RC oscillator

■ EXTERNAL CLOCK (applied to pin 3) CAN BE USED INSTEAD OF oscillator

■ OPERATES AS 2N FREQUENCY DIVIDER OR AS A SINGLE-TRANSITION timer

■ Q/Q SELECT PROVIDES OUTPUT LOGIC LEVEL FLEXIBILITY CAPABLE OF DRIVING SIX LOW POWER TTL LOADS, THREE LOW-POWER SCHOTTKY LOADS, PR SIX HTL LOADS OVER THE RATED TEMPERATURE RANGE

■ SYMMETRICAL OUTPUT CHARACTERISTICS

■ 100% TESTED FOR QUIESCENT CURRENT AT 20V

■ 5-10-15V PARAMETRIC RATINGS

■ MEETS ALL REQUIREMENTS OF JEDECTEN TATIVE STANDARD N 13A, ”STANDARD SPE CIFICATIONS FOR DESCRIPTION OF ’ B ’ SERIES CMOS DEVICES”



 


Part Name(s) : MC14541B MC14541BCL MC14541BCP MC14541BD Motorola
Motorola => Freescale
Description : Programmable timer View

Programmable timer



  The MC14541B Programmable timer consists of a 16–stage binary counter,an integrated oscillator for use with an external capacitor and two resistors, an automatic power–on reset circuit, and output control logic.

   Timingis initialized by turning on power, whereupon the power–on reset is enabledand initializes the counter, within the specified VDDrange. with the  poweralready on, an external reset pulse can be applied. Upon release of theinitial reset command, the oscillator will oscillatewith a frequency determinedby the external RC network. The 16–stage counter divides the oscillator frequency (fosc) with the nth stage frequency being fosc/2n.



• Available Outputs 28, 210, 213 or 216

• Increments on Positive Edge Clock Transitions

• Built–in Low Power RC oscillator (±2% accuracy over temperature range and ±20% supply and ±3% over processing at < 10 kHz)

oscillator May Be Bypassed if External Clock Is Available (Apply external clock to Pin 3)

• External Master Reset Totally Independent of Automatic Reset Operation

• Operates as 2nFrequency Divider or Single Transition timer

• Q/QSelect Provides Output Logic Level Flexibility

• Reset (auto or master) Disables oscillator During Resetting to Provide No Active Power Dissipation

• Clock Conditioning Circuit Permits Operation with Very Slow Clock Rise and Fall Times

• Automatic Reset Initializes All Counters On Power Up

• Supply Voltage Range = 3.0 Vdc to 18 Vdc with Auto Reset

                                   Disabled (Pin 5 = VDD)

                                = 8.5 Vdc to 18 Vdc with Auto Reset

                                   Enabled (Pin 5 = VSS)


Part Name(s) : HEC4541BDB HEF4541B HEF4541BD HEF4541BDF HEF4541BF HEF4541BN HEF4541BP HEF4541BPB HEF4541BPN HEF4541BT Philips
Philips Electronics
Description : Programmable timer View

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.

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