ВСЕ КАТЕГОРИИ
Изображения приведены только для справки, см. Технические характеристики изделия.
UART Interface IC 3V-5V 1CH UART INTEL/MOT INTRF
| Производитель : | NXP Semiconductor |
|---|---|
| Упаковка/Ящик : | PQFP-44 |
| категорий продукта : | UART Interface IC |
| Datasheet: | |
| RoHs Status: | Rohs |
| Наличность: | 210 |
Количество
Запрос он-лайн
SC28L91A1B,557 информация о продукте
The SC28L91A1B,557 is a new member of the IMPACT family of Serial Communications Controllers. It is a single channel UART operating at 3.3 V and 5.0 V VCC, 8 or 16 byte FIFOs and is quite compatible with software of the SC28L92 and previous UARTs offered by Philips. It is a new part that is similar to our previous one channel part but is vastly improved. The improvements being: 16 character receiver, 16 character transmit FIFOs, watch dog timer for the receiver, mode register 0 is added, extended baud rate, over all faster bus and data speeds, programmable receiver and transmitter interrupts and versatile I/O structure. (The previous one channel part, SCC2691, is NOT being discontinued.)
Pin programming will allow the device to operate with either the Motorola or Intel bus interface. Bit 3 of the MR0 register allows the device to operate in an 8-byte FIFO mode if strict compliance with an 8-byte FIFO structure is required.
The Philips Semiconductors SC28L91A1B,557 Universal Asynchronous Receiver/Transmitter (UART) is a single-chip CMOS-LSI communications device that provides a full-duplex asynchronous receiver/transmitter channel in a single package. It interfaces directly with microprocessors and may be used in a polled or interrupt driven system with modem and DMA interface.
The operating mode and data format of the channel can be programmed independently. Additionally, the receiver and transmitter can select its operating speed as one of 28 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 UART particularly attractive for dual-speed channel applications such as clustered terminal systems.
The receiver and transmitter is buffered by 8 or 16 character FIFOs to minimize the potential of receiver overrun, transmitter underrun and to reduce interrupt overhead in interrupt driven systems. In addition, a flow control capability is provided via RTS/CTS signaling to disable a remote transmitter when the receiver buffer is full.
DMA interface is and other general purpose signals are provided on the SC28L91A1B,557 via a multipurpose 7-bit input port and a multipurpose 8-bit output port. These can be used as general-purpose ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs, FIFO conditions) under program control.
The SC28L91A1B,557 is available in two package versions: a 44-pin PLCC and 44-pin plastic quad flat pack (PQFP).
Особенность
- Member of IMPACT family: 3.3 to 5.0 volt , -40 Cel to +85 Cel and 68K for 80xxx bus interface for all devices.
- A full-duplex independent asynchronous receiver/transmitter
- 16 character FIFOs for each receiver and transmitter
- Pin programming selects 68K or 80xxx-bus interface
- 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
- 16-bit programmable Counter/Timer
- Programmable baud rate for each receiver and transmitter selectable from:
- 28 fixed rates: 50 to 230.4 k baud
- Other baud rates to 1 MHz at 16X
- Programmable user-defined rates derived from a programmable counter/timer
- 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 loop back
- Multi-drop mode (also called 'wake-up' or '9-bit')
- Multi-function 7-bit input port (includes IACKN)
- Can serve as clock or control inputs
- Change of state detection on four inputs
- Inputs have typically >100 kΩ pull-up resistors
- Change of state detectors for modem control
- Multi-function 8-bit output port
- Individual bit set/reset capability
- Outputs can be programmed to be status/interrupt signals
- FIFO status for DMA interface
- Versatile interrupt system
- Single interrupt output with eight maskable interrupting conditions
- Output port can be configured to provide a total of up to six separate interrupt outputs that may be wire ORed.
- Each FIFO can be programmed for four different interrupt levels
- Watchdog timer for the receiver
- Maximum data transfer rates:
- 1X - 1 Mbit/s, 16X - 1 Mbit/s
- Automatic wake-up mode for multi-drop applications
- Start-end break interrupt/status with mid-character break detect.
- On-chip crystal oscillator
- Power-down mode
- Receiver time-out mode
- Single +3.3 V or +5 V power supply
(Картинка: Diagram)
Технические параметры
- Number of Channels
- 1
- Data Rate
- 230.4 Kbps
- Supply Voltage Max
- 5.5 V
- Supply Voltage Min
- 3 V
- Supply Current
- 25 mA
- Maximum Operating Temperature
- + 85 C
- Minimum Operating Temperature
- - 40 C
- Package / Case
- PQFP-44
- Packaging
- Tray
- Mounting Style
- SMD/SMT
- Operating Supply Voltage
- 3.3 V, 5 V
- Factory Pack Quantity
- 480
- Part # Aliases
- SC28L91A1B
SC28L91A1B,557 Datasheet
-
SC28L91 NXP Technical Data
SC28L91A1B,557 Связанные специальные
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Перевозка & Оплата
Перевозка
- Доставка типа
- Гонорар корабля
- Затягивание
- 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.
Оплата
- Условия платежа
- Рука Плата
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
Мы обеспечиваем высокое качество продукции, заботливое обслуживание и после продажи гарантии
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У нас есть богатые продукты, может удовлетворить ваши различные потребности.
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Минимальное количество заказа начинается от 1шт.
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Самая низкая международная стоимость доставки начинается от $ 2,00 США.
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90 дней гарантия качества для всех продуктов.
упаковка
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Step1: Products
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Step2: Vacuum Packaging
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Step3: Anti-Static Bag
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Step4: Individual Packaging
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Step5: Packaging Boxes
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Step6: Bar-Code Shipping Tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
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.
Гарантии
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 SC28L91A1B,557 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 SC28L91A1B,557 devices; we pay more attention to the channels and quality of SC28L91A1B,557 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of SC28L91A1B,557 chips? Including NXP original factory information, UART Interface IC application, SC28L91A1B,557 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 SC28L91A1B,557 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 SC28L91A1B,557, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
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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 SC28L91A1B,557?
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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 SC28L91A1B,557 we delivered, we will accept the replacement or return of the SC28L91A1B,557 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 SC28L91A1B,557.
(3)The SC28L91A1B,557 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 SC28L91A1B,557 datasheet pdf, SC28L91 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
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