Part No. Features Vcc Package
PD (mW)
C555 CMOS General Purpose Timer
(Driver Capability=20mA)

* Timing from microseconds through hours
* High speed operation – 500kHz
* Wide operation supply voltage range – 2 to 18 voltages
* Low Supply Current 0.2mA
* Operates in both astable and monostable modes
* High output source/sink driver can drive TTL / CMOS
* Adjustable duty cycle
2.0V ~ 18.0V DIP-8 SOP-8 
CD4541 Programmable Timer

* Operates at 2n frequency divider or as single transition timer
* Increments on positive edge clock transitions
* Wide supply voltage range: 3.0V ~ 15V
* Built-in low power RC oscillator
* Oscillator frequency range ~ DC to 100 kHz
* External clock applied to Pin 3 can be used instead of
* oscillator
* Available division ratios 28, 210, 213, or 216
* High noise immunity: 0.45 VDD (typ)
* Master reset totally independent of automatic reset operation
* Automatic reset initializes all counters when power turns on
* Q/Q select provides output logic level flexibility
* High output drive min. one TTL load
* Maximum input leakage 1μA at 15V over full temperature
* range
3.0V ~ 15.0V DIP-14 SOP-14 TSSOP-14
NE555 High Current Single Timer
(Driver Capability=200mA)

*High current driver capability (=200mA).
*Adjustable duty cycle.
*Timing from ms to hours.
*Turn off time less than 2ms.
*Operates in both astable and monostable modes.
4.5V ~ 16.0V DIP-8 SOP-8 
USA555 Precision Timers

* Astable or monostable operation
* Low turn off time
* Operates in both astable and monostable modes
* Timing from microseconds to hours
* Adjustable duty cycle
* TTL-compatible output can sink or source up to 200mA
4.5V ~ 16.0V DIP-8 SOP-8 
LM556 High Current Dual Timer
(Driver Capability=200mA)

*High Current Driver Capability(=200mA)
*Adjustable Duty Cycle
*Timing From μSec to Hours
*Temperature Stability of 0.005%/°C
*TTL Compatible
*Operates in Both Astable and Monostable Modes
4.5V ~ 16.0V DIP-14 SOP-14
U74HC4060 14−Stage Binary Ripple Counter With Oscillator

* Operate from 2.0V to 6.0V
* Low Input Current:1.0uA
* Outputs Can Drive Up To 10 LSTTL Loads
* Low Power Consumption ,80uA Max ICC
* 4mA Output Drive at 5V
* Typical tPD=14ns
* Allow Design of Either RC or Crystal Oscillator Circuits
2.0V ~ 6.0V SOP-16 TSSOP-16
U74HC123 Dual Retriggerable Monostable Multivibrator With Reset

* DC triggered from active HIGH or active LOW inputs
* Retriggerable for very long pulses up to 100% duty factor
* Direct reset terminates output pulse
* Schmitt-trigger action on all inputs except for the reset input
2.0V ~ 6.0V SOP-16 TSSOP-16
*: Under  Development