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Quad universal asynchronous receiver/transmitter (QUART)
| Hersteller : | NXP Semiconductor |
|---|---|
| Verpackung/Behälter : | PLCC-52 |
| Produkt der Kategorien : | UART Interface IC |
| Datasheet: | SC28C94A1A Datasheet (PDF) |
| RoHs Status: | Lead free / RoHS Compliant |
| Lagerbestand: | 120 |
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SC28C94A1A Beschreibung
DESCRIPTION
The 28C94 quad universal asynchronous receiver/transmitter (QUART) combines four enhanced Philips Semiconductors industry-standard UARTs with an innovative interrupt scheme that can vastly minimize host processor overhead. It is implemented using Philips Semiconductors’ high-speed CMOS process that combines small die size and cost with low power consumption.
The operating speed of each receiver and transmitter can be selected independently at one of eighteen fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs. The ability to independently program the operating speed of the receiver and transmitter make the QUART particularly attractive for dual-speed channel applications such as clustered terminal systems.
Each receiver is buffered with eight character FIFOs (first-in-first-out memories) and one shift register to minimize the potential for receiver overrun and to reduce interrupt overhead in interrupt driven systems. In addition, a handshaking capability is provided to disable a remote UART transmitter when the receiver buffer is full. (RTS control)
The 28C94 provides a power-down mode in which the oscillator is stopped and the register contents are stored. This results in reduced power consumption on the order of several magnitudes. The QUART is fully TTL compatible and operates from a single +5V power supply.
FEATURES
• New low overhead interrupt control
• All commercial parts meet industrial timing and temperature parameters
• Four Philips Semiconductors industry-standard UARTs
• Eight byte receive FIFO and eight byte transmit FIFO for each UART
• Programmable data format:
– 5 to 8 data bits plus parity
– Odd, even, no parity or force parity
– 1, 1.5 or 2 stop bits programmable in 1/16-bit increments
• Baud rate for the receiver and transmitter selectable from:
– 23 fixed rates: 50 to 230.4K baud; Non-standard rates to 1.0 M baud
– User-defined rates from the programmable counter/timer associated with each of two blocks
– External 1x or 16x clock
• Parity, framing, and overrun error detection
• False start bit detection
• Line break detection and generation
• Programmable channel mode
– Normal (full-duplex), automatic echo, local loop back, remote loopback
• Programmable interrupt priorities
• Identification of highest priority interrupt
• Global interrupt register set provides data from interrupting channel
• Vectored interrupts with programmable vector format
• IACKN and programmable DTACKN signals
• Built-in baud rate generator with choice of 18 rates
• Four I/O pins per UART for modem controls, clocks, etc.
• Power down mode
• High-speed CMOS technology
• 52-pin PLCC package
• Commercial and industrial temperature ranges available
• On-chip crystal oscillator
• TTL compatible
• Single +5V power supply with low power mode
• Two multifunction programmable 16-bit counter/timers
• 1MHz 16x mode operation
• 10ns data bus release time
• “Watch Dog” timer for each receiver
Feature
- New low overhead interrupt control
- All commercial parts meet industrial timing and temperature parameters
- Four Philips Semiconductors industry-standard UARTs
- Eight byte receive FIFO and eight byte transmit FIFO for each UART
- Programmable data format:
- 5 to 8 data bits plus parity
- Odd, even, no parity or force parity
- 1, 1.5 or 2 stop bits programmable in 1/16-bit increments
- Baud rate for the receiver and transmitter selectable from:
- 23 fixed rates: 50 to 230.4K baud; Non-standard rates to 1.0 M baud
- User-defined rates from the programmable counter/timer associated with each of two blocks
- External 1x or 16x clock
- Parity, framing, and overrun error detection
- False start bit detection
- Line break detection and generation
- Programmable channel mode
- Normal (full-duplex), automatic echo, local loop back, remote loopback
- Programmable interrupt priorities
- Identification of highest priority interrupt
- Global interrupt register set provides data from interrupting channel
- Vectored interrupts with programmable vector format
- IACKN and programmable DTACKN signals
- Built-in baud rate generator with choice of 18 rates
- Four I/O pins per UART for modem controls, clocks, etc.
- Power down mode
- High-speed CMOS technology
- 52-pin PLCC package
- Commercial and industrial temperature ranges available
- On-chip crystal oscillator
- TTL compatible
- Single +5V power supply with low power mode
- Two multifunction programmable 16-bit counter/timers
- 1MHz 16x mode operation
- 10ns data bus release time
- "Watch Dog" timer for each receiver
(Bild: Pinout)
(Bild: Diagram)
Technische Parameter
- Number of Channels
- 4
- Data Rate
- 1 Mbps
- Supply Voltage Max
- 5.5 V
- Supply Voltage Min
- 4.5 V
- Supply Current
- 35 mA
- Maximum Operating Temperature
- + 85 C
- Minimum Operating Temperature
- - 40 C
- Package / Case
- PLCC-52
- Packaging
- Tube
- Description/Function
- Quad UART
- Mounting Style
- SMD/SMT
- Operating Supply Voltage
- 5 V
- Factory Pack Quantity
- 23
- Type
- Quad UART
- Part # Aliases
- SC28C94A1A,512
SC28C94A1A Datasheet
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SC28C94A1A NXP Technical Data
SC28C94A1A Verwandte besondere
Ratings and Reviews (1)
- 5 / 5
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**ober***2020-04-25
Super Verkäufer! Gerne wieder .
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- 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
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- 2-5 days
- EMS
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- 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.
Zahlung
- Zahlungsbedingungen
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- Wire Transfer
- charge US$30.00 banking fee.
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- charge 3.5% service fee.
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- charge US$0.00 banking fee.
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Verpackung
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Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Garantien
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
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 SC28C94A1A is the original manufacturer or agent of NXP?
- We have a professional business development department to strictly test and verify the qualifications of NXP original manufacturers and agents. All NXP suppliers must pass the qualification review before they can publish their SC28C94A1A devices; we pay more attention to the channels and quality of SC28C94A1A products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of SC28C94A1A chips? Including NXP original factory information, UART Interface IC application, SC28C94A1A pictures?
- You can use Jotrin's intelligent search engine, or filter by Interfaces ; UARTs category, or find it through NXP Semiconductor Information page.
- Q: Are the NXP's SC28C94A1A price and stock displayed on the platform accurate?
- The NXP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SC28C94A1A, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online. - Q: What forms of payment can I use in Jotrin?
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- Q: How is the shipping arranged and track my package?
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
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 SC28C94A1A?
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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 SC28C94A1A we delivered, we will accept the replacement or return of the SC28C94A1A only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SC28C94A1A.
(3)The SC28C94A1A is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy. - Q: How to contact us and get support, such as SC28C94A1A datasheet pdf, SC28C94A1A pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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