The TC74VHC4040 is an advanced high speed CMOS 12-
STAGE BINARY COUNTER / DIVIDER fabricated with
silicon gate CMOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation.
Setting CLR to high resets the counter to low.
A negative transition on the CK input brings one increment
into the counter.
This counter provides all divided output stages, and at Q12, a
1/4096 divided frequency will be output.
An input protection circuit ensures that 0 to 7V can be
applied to the input pins without regard to the supply
voltage. This device can be used to interface 5V to 3V
systems and two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched
supply and input voltages.

FEATURES:
.
High Speed...
.*MAX=210MHz (typ.)
at Vcc=5V
lcc=4uA (Max.) at Ta = 25°C
• Low Power Dissipation.
• High Noise Immunity........... .VNIH VNIL = 28% Vcc (Min.)
• Power Down Protection is provided on all inputs.
• Balanced Propagation DelaystpLH=tpHL
• Wide Operating Voltage Range...Vcc (opr) = 2V-5.5V
• Low Noise
=
VOLP 1.5V (Max.)
• Pin and Function Compatible with 74HC4040