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Counter ICs HiSp CMOS Logic Dual Decade Ripple Cntr
- Manufacturer :
- Texas Instruments, Inc
- Package/Case :
- SOIC-16
- Product Categories :
- Counter ICs
- Datasheet:
- CD74HC390ME4 PDF
- RoHs Status:
- Rohs
- In-stock:
- 200
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CD74HC390ME4 Product Details
The CD74HC390ME4 and ’HCT390 dual 4-bit decade ripple counters are high-speed silicon-gate CMOS devices and are pin compatible with low-power Schottky TTL (LSTTL). These devices are divided into four separately clocked sections. The counters have two divide-by-2 sections and two divide-by-5 sections. These sections are normally used in a BCD decade or bi quinary configuration, since they share a common master reset (nMR). If the two master reset inputs (1MR and 2MR) are used to simultaneously clear all 8 bits of the counter, a number of counting configurations are possible within one package. The separate clock inputs (nCP0\ and nCP1\) of each section allow ripple counter or frequency division applications of divide-by-2, 4. 5, 10, 20, 25, 50 or 100. Each section is triggered by the High-to-Low transition of the input pulses (nCP0\ and nCP1\).
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 nO3 output is connected to the nCP0\ input and nQ0 becomes the decade output.
The master reset inputs (1MR and 2MR) are active-High asynchronous inputs to each decade counter which operates on the portion of the counter identified by the "1" and "2" prefixes in the pin configuration. A High level on the nMR input overrides the clock and sets the four outputs Low.
Feature
- Two BCD Decade or Bi-Quinary Counters
- One Package 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
- Fanout (Over Temperature Range)
- Standard Outputs...10 LSTTL Loads
- Bus Driver Outputs...15 LSTTL Loads - Wide Operating Temperature Range... -55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V - HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il1μA at VOL, VOH
Technical Parameters
| Counter Type | Decade Counters | Operating Temperature Range | - 55 C to + 125 C |
|---|---|---|---|
| Logic Family | CMOS | Package / Case | SOIC-16 |
| Number of Bits | 4 | Packaging | Tube |
| Counting Method | Asynchronous | Mounting Style | SMD/SMT |
| Operating Supply Voltage | 2 V to 6 V | Factory Pack Quantity | 40 |
CD74HC390ME4 Documents
-
CD74HC390 Family Datasheet
CD74HC390ME4 Related Products
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Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
| DHL | $20.00-$40.00 (0.50 KG) |
2-5 days | |
| Fedex | $20.00-$40.00 (0.50 KG) |
3-7 days | |
| UPS |
$20.00-$45.00 (0.50 KG) |
2-5 days | |
| TNT |
$25.00-$65.00 (0.50 KG) |
2-5 days | |
| EMS |
$25.00-$45.00 (0.50 KG) |
5-14 days | |
| REGISTERED AIR MAIL |
$2.00-$3.00 (0.10 KG) |
7-30 days | |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | Payment Site | |
|---|---|---|---|
| Wire Transfer | charge US$30.00 banking fee. |
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https://www.paypal.com/ | |
| Credit Card | charge 3.5% service fee. |
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| Western Union | charge US$0.00 banking fee. |
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2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
FAQ:
- Q: How does Jotrin guarantee that CD74HC390ME4 is the original manufacturer or agent of TI?
- We have a professional business development department to strictly test and verify the qualifications of TI original manufacturers and agents. All TI suppliers must pass the qualification review before they can publish their CD74HC390ME4 devices; we pay more attention to the channels and quality of CD74HC390ME4 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
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Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days. - Q: What is the process for returns or replacement of CD74HC390ME4?
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the CD74HC390ME4 we delivered, we will accept the replacement or return of the CD74HC390ME4 only when all of the below conditions are fulfilled:
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