Philips ECG ECG4541B, CMOS Programmable Timer ~ 14 Pin DIP (NTE4541B)

FEATURES:

• Philips ECG ECG4541B, CMOS Programmable Timer
• Supply Voltage Range: 3V DC to 18V DC
• Increments on Positive Edge Clock Transitions
• Low Symmetrical Output Resistance (Typically 10 at 15Vdc)
• Built In Low Power RC Oscillator (2% Accuracy over Temperature Range and 10% Supply and 3% over Processing at < 10kHz)
• Oscillator Frequency Range DC to 100kHz
• Oscillator may be Bypassed if External Clock is Available (Apply External Clock to Pin3)
• Automatic Reset Initializes All Counters when Power Turn On (Limits VDD from 8.5Vdc to 18Vdc when Enabled)
• External Master Reset Totally Independent of Automatic Reset Operation
• Operates as 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
• 14 Pin DIP Package
• Replaces: NTE4541B