MM74C926N 4-Digit Counters with Multiplexed 7-Segment Output Drivers
74C926
$22.00
| QTY | Price |
|---|---|
| 1 | $22.00 |
| 10 | $18.00 |
| 25 | $16.20 |
Description
The MM74C926N IC is a CMOS counter featuring a 4-digit counter, an internal output latch, NPN output sourcing drivers for a 7-segment display, and internal multiplexing circuitry with four multiplexing outputs. Unlike similar devices, this IC has its own internal oscillator, eliminating the need for an external clock. Counters increment on the negative edge of the clock signal.
To control the operation, a HIGH signal on the Reset input resets the counter to zero, setting the carry-out to LOW. Conversely, a LOW signal on the Latch Enable input latches the counter's number into the internal output latches. Additionally, the Display Select input, when HIGH, chooses the counter number for display, while a LOW-level signal selects the output latch's number for display.
This IC is similar to the MM74C925 but offers additional features like display selection and a carry-out signal for cascading multiple counters. The carry-out signal transitions from HIGH at 6000 to LOW at 0000.
Features
- Wide supply voltage range: 3V to 6V
- Guaranteed noise margin: 1V
- High noise immunity: 0.45 VCC (typ.)
- High segment sourcing current: 40 mA @ VCC − 1.6V, VCC = 5V
- Internal multiplexing circuitry
Specifications
Operating Temperature
-40°C - 85°C
Load Capacitance
50.0 pF
Supply Voltage Range
3V to 6V
Package Code
DIP
Number of Terminals
18
Terminal Finish
Tin/Lead
Dimensions
Length
21.78 mm
Width
7.62 mm
Terminal Pitch
2.54 mm
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