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SC28L198A1BE数据手册恩XP中文资料规格书
SC28L198A1BE规格书详情
描述 Description
The Philips 28L198 Octal UART is a single chip CMOS-LSI communications device that provides 8 full-duplex asynchronous channels with significantly deeper 16 byte FIFOs, Automatic in-band flow control using Xon/Xoff characters defined by the user and address recognition in the wake up mode. Synchronous bus interface is used for all communication between host and OCTART. It is fabricated using Philips 1.0 micron CMOS technology that combines the benefits of low cost, high density and low power consumption.
The operating speed of each receiver and transmitter can be selected independently from one of 22 fixed baud rates, a 16X clock derived from one of two programmable baud rate counters or one of three external 16X clocks (1 available at 1x clock rate). The baud rate generator and counter can operate directly from a crystal or from seven other external or internal clock inputs. The ability to independently program the operating speed of the receiver and transmitter makes the Octal UART particularly attractive for dual speed full duplex channel applications such as clustered terminal systems. The receivers and transmitters are buffered with FIFOs of 16 characters to minimize the potential for receiver overrun and to reduce interrupt overhead. In addition, a handshaking capability and in-band flow control are provided to disable a remote UART transmitter when the receiver buffer is full or nearly so.
To minimize interrupt overhead an interrupt arbitration system is included which reports the context of the interrupting UART via direct access or through the modification of the interrupt vector. The context of the interrupt is reported as channel number, type of device interrupting (receiver COS etc.) and, for transmitters or receivers, the fill level of the FIFO.
The Octal UART provides a power down mode in which the oscillator is stopped but the register contents are maintained. This results in reduced power consumption of several orders of magnitudes. The Octal UART is fully TTL compatible when operating from a single +5V power supply. Operation at 3.3 volts is maintained with CMOS interface levels.
The device also offered in a version which maintains TTL input and output levels while operating with a 3.3 volt power supply.
特性 Features
Single 3.3V and 5V power supply
Eight Philips industry standard full duplex UART channels
Sixteen byte receiver FIFOs for each UART
Sixteen byte transmit FIFOs for each UART
In band flow control using programmable Xon/Xoff characters
Flow control using CTSN RTSN hardware handshaking
Automatic address detection in multi-drop mode
Three byte general purpose character recognition
Fast data bus, 30 ns data bus release time, 125 ns bus cycle time
Programmable interrupt priorities
Automatic identification of highest priority interrupt pending
Global interrupt and control registers ease setup and interrupt handling
Vectored interrupts with programmable interrupt vector formats
Interrupt vector modified with channel number
Interrupt vector modified with channel number and channeltype
Interrupt vector not modified
IACKN and DACKN signal pins
Watch dog timer for each receiver (64 receive clock counts)
Programmable Data Formats:
5 to 8 data bits plus parity
Odd, even force or no parity
1, 1.5 or 2 stop bits
Flexible baud rate selection for receivers and transmitters:
22 fixed rates; 50 - 230.4K baud or 100 to 460.8K baud
Additional non-standard rates to 500K baud with internalgenerators
Two reload-counters provide additional programmable baud rategeneration
External 1x or 16x clock inputs
Simplified baud rate selection
1 MHz 1x and 16x data rates full duplex all channels.
Parity, framing and overrun error detection
False start bit detection
Line break detection and generation
Programmable channel mode
Normal(full duplex)
Diagnostic modes
automatic echo
local loop back
remote loop back
Four I/O ports per UART for modem controls, clocks, RTSN, I/Oetc.
All I/O ports equipped with \"Change of StateDetectors\"
Two global inputs and two global outputs for general purposeI/O
Power down mode
On chip crystal oscillator, 2-8 MHz
TTL input levels. Outputs switch between full VCC andVSS
High speed CMOS technology
84 pin PLCC
100 pin LQFP
应用 Application
UsesStatistical Multiplexers
Data Concentrators Packet-switching networks
Building or Plant Control
Laboratory data gathering
ISDN front ends
Computer Networks
Point-of-Sale terminals
Automotive, cab and engine controls
Entertainment systems MIDDI keyboard control music systems
Theater lighting control
Terminal Servers
Computer-Printer/Plotter links
技术参数
- 型号:
SC28L198A1BE
- 功能描述:
UART 接口集成电路 3V-5V 8CH UART INTEL/MOT INTRF
- RoHS:
否
- 制造商:
Texas Instruments
- 通道数量:
2
- 数据速率:
3 Mbps
- 电源电压-最大:
3.6 V
- 电源电压-最小:
2.7 V
- 电源电流:
20 mA
- 最大工作温度:
+ 85 C
- 最小工作温度:
- 40 C
- 封装/箱体:
LQFP-48
- 封装:
Reel
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
恩XP |
24+ |
NA/ |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
恩XP |
11+ |
QFP |
69 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
恩XP |
25+ |
QFP100 |
12496 |
NXP/恩智浦原装正品SC28L198A1BE即刻询购立享优惠#长期有货 |
询价 | ||
PHI |
2138+ |
QFP |
8960 |
专营BGA,QFP原装现货,假一赔十 |
询价 | ||
恩XP |
24+ |
LQFP-100 |
30000 |
原装正品公司现货,假一赔十! |
询价 | ||
恩XP |
23+ |
LQFP-100 |
12700 |
买原装认准中赛美 |
询价 | ||
恩XP |
24+ |
- |
9548 |
原厂可订货,技术支持,直接渠道。可签保供合同 |
询价 | ||
恩XP |
25+ |
QFP |
3386 |
品牌专业分销商,可以零售 |
询价 | ||
恩XP |
22+ |
LQFP-100 |
12000 |
只有原装,原装,假一罚十 |
询价 | ||
恩XP |
16+ |
QFP |
2500 |
进口原装现货/价格优势! |
询价 |