74HC390 Dual 4-bit Decade Ripple Counter IC – SOIC-16 Package
The 74HC390 74HCT390 is a dual 4-bit decade ripple counter divided into four separately clocked sections. The counters have two divide-by-2 sections and two
divide-by-5 sections. These sections share an asynchronous master reset input (nMR) and can be used in a BCD decade or bi-quinary configuration. If master reset inputs 1MR and 2MR are used to clear all 8 bits of the counter simultaneously, numerous counting configurations are possible within one package. Section clocks nCP0 and nCP1, allow ripple counter or frequency division applications of divide-by-2, 4, 5, 10, 20, 25, 50 or 100. The HIGH-to-LOW transition of the clock inputs nCP0 and nCP1 trigger each section. For BCD decade operation, the nQ0 output is connected to the nCP1 input of the divide-by-5 section. For bi-quinary decade operation, the nQ3 output is connected to the nCP0 input and nQ0 becomes the decade output. A HIGH on the nMR input overrides the clocks and sets the four outputs LOW. Inputs include clamp diodes. It enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.Â
This product is known as CD74HC390EE4, CD74HC390E, 74HC390PW, MC74HC390ADG, CD74HC390M, MC74HC390ADR2G, 74HC390D, MC74HC390ADTR2G, CD74HC390M96, CD74HC390M96G4, 74390 IC, 74390 SMD IC, 74HC390 IC, 74HC390 SMD IC, Components, Dual 4-bit Decade Ripple Counter IC, Dual 4-bit Decade Ripple Counter SMD IC.
Features:
- Input levels: CMOS level
- Two BCD decade or bi-quinary counters
- One device can be configured to divide-by-2, 4, 5, 10, 20, 25, 50 or 100
- Two master reset inputs to clear each decade counter individually
- Specified in compliance with JEDEC standard no. 7A
Features/Specs:
- Series: 74HC390
- Logic Family: HC
- Logic Type: CMOS
- Function: Counter/Divider
- Product Type: Counter Shift Registers
- Counter Type: Decade
- Counting Sequence: Up
- Number of Circuits: 2
- Number of Bits: 4 bit
- Number of Input Lines: 2
- Propagation Delay Time: 200 ns, 160 ns, 58 ns, 49 ns
- Supply Voltage – Max: 6 V
- Minimum Operating Temperature: – 55°C
- Maximum Operating Temperature: + 125°C
- Number of Output Lines: 4
- Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
- Mounting Style: SMD/SMT
- Package/Case: SOIC-16
Package Includes:
- 1 x 74HC390 Dual 4-bit Decade Ripple Counter IC – SOIC-16 Package
Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
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