CD4541 Programmable Timer 16-stage binary counter

General Description:

The CD4541B Programmable Timer is designed with a 16-stage binary counter, an integrated oscillator for use with an external capacitor and two resistors, output control logic, and a special power-on reset circuit. The special features of the power-on reset circuit are first, no additional static power consumption and second, the part functions across the full voltage range (3V –15V) whether power-on reset is enabled or disabled.

Features:

• Available division ratios 28, 210, 213, or 216
• Increments on positive edge clock transitions
• Built-in low power RC oscillator (g2% accuracy over temperature range and g10% supply and g3% over processing @ k 10 kHz)
• Oscillator frequency range & DC to 100 kHz
• Oscillator may be bypassed if external clock is available (apply external clock to pin 3)
• Automatic reset initializes all counters when power turns on
• External master reset totally independent of automatic reset operation
• Operates at 2n frequency divider or single transition timer
• Q/Q select 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
• Wide supply voltage rangeÐ3.0V to 15V
• High noise immunityÐ0.45 VDD (typ.)
• 5V –10V –15V parameter ratings
• Symmetrical output characteristics
• Maximum input leakage 1 mA at 15V over full temperature range
• High output drive (pin 8) min. one TTL load

See full feature at datasheet from below: