7496 (4-bit binary counter with a decade counter output)

The IC 7496 is a 4-bit binary counter with a decade counter output (also known as a BCD counter). It is part of the 7400 series of TTL (Transistor-Transistor Logic) ICs and is typically used in applications that require counting or frequency division.

IC 7496 Description:

The 7496 is a 4-bit binary counter with binary-coded decimal (BCD) outputs. It is designed to count from 0 to 9 in binary form and has a carry-out output that can be used for cascading with other counters. It is a synchronous counter, meaning that all bits change in sync with the clock input, providing a precise counting mechanism.

Key Features:

• 4-bit Binary Counter: The 7496 contains a 4-bit binary counter, which means it can count from 0 to 15 (in binary).
• BCD (Binary-Coded Decimal) Output: Although it counts in binary internally, the counter produces BCD outputs that represent decimal numbers (0 to 9) at the output. This makes it useful in applications where you need to display numbers in decimal form.
• Carry-Out: The 7496 includes a carry-out (CO) pin that is used to cascade additional counters for counting beyond 9.
• Synchronous Operation: The counter is synchronous, meaning all the flip-flops (binary storage elements) within the counter change states simultaneously with the clock pulse.
• Reset Function: The IC includes an active-low reset input, which is used to reset the counter to 0.

Pin Configuration (14-pin package):

Pin Function 1 Q0 (BCD Output) 2 Q1 (BCD Output) 3 Q2 (BCD Output) 4 Q3 (BCD Output) 5 Clock (Clock Input) 6 Carry-out (CO Output) 7 Ground (GND) 8 Reset (Active Low) 9 Vcc (Power Supply) 10 Q0 (BCD Output) 11 Q1 (BCD Output) 12 Q2 (BCD Output) 13 Q3 (BCD Output) 14 Carry-in (CI Input) Functional Description:

1. 4-Bit Binary Counter:

• The 7496 contains four flip-flops that work together to form a 4-bit counter. The IC counts in binary from 0000 (0 in decimal) to 1111 (15 in decimal).
• The counter increments by 1 for each clock pulse, and the binary outputs (Q0 to Q3) reflect the current state of the counter.

1. BCD Output:

• The BCD outputs (Q0 to Q3) represent the binary coded decimal (BCD) format of the current count. This is useful for displaying decimal numbers (0 to 9) on devices like 7-segment displays or other digital displays.
• If the count exceeds 9 (1001), the counter will automatically reset back to 0, as the IC is designed to work in a decade counting mode (BCD).

1. Carry-Out Pin:

• The carry-out (CO) pin is used for cascading multiple counters. When the counter reaches its maximum count (9), the carry-out pin will generate a pulse to trigger the next counter in the series, allowing the counting range to extend beyond 9.
• This feature is essential for creating counters with a larger range (e.g., counting from 0 to 99 or 0 to 999).

1. Clock Input:

• The clock input controls the counting of the IC. On each rising edge of the clock, the counter increments by one. If the clock is continuously applied, the counter will keep counting in binary from 0 to 9.

1. Reset Function:

• The reset input is an active-low input. When it is pulled low, the counter will reset to 0000 (decimal 0), regardless of the current state of the counter.