參數(shù)資料
型號： SC16C2550IA44,529
廠商： NXP Semiconductors
文件頁數(shù)： 5/46頁
文件大小： 0K
描述： IC UART DUAL W/FIFO 44-PLCC
標(biāo)準(zhǔn)包裝： 26
特點： 2 通道
通道數(shù)： 2，DUART
FIFO's： 16 字節(jié)
電源電壓： 2.5V，3.3V，5V
帶自動流量控制功能： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動位檢測功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 44-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 44-PLCC
包裝： 管件
其它名稱： 568-3260-5
935270019529
SC16C2550IA44-S
Philips Semiconductors
SC16C2550
Dual UART with 16 bytes of transmit and receive FIFOs and IrDA
encoder/decoder
Product data
Rev. 03 — 19 June 2003
13 of 46
9397 750 11621
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
receive holding register (RHR) is read. The actual time-out value is 4 character time,
including data information length, start bit, parity bit, and the size of stop bit, i.e., 1
×,
1.5
×, or 2× bit times.
6.8 Programmable baud rate generator
The SC16C2550 supports high speed modem technologies that have increased input
data rates by employing data compression schemes. For example, a 33.6 kbit/s
modem that employs data compression may require a 115.2 kbit/s input data rate.
A 128.0 kbit/s ISDN modem that supports data compression may need an input
data rate of 460.8 kbit/s. The SC16C2550 can support a standard data rate of
921.6 kbit/s.
A single baud rate generator is provided for the transmitter and receiver, allowing
independent TX/RX channel control. The programmable Baud Rate Generator is
capable of operating with a frequency of up to 80 MHz. To obtain maximum data rate,
it is necessary to use full rail swing on the clock input. The SC16C2550 can be
congured for internal or external clock operation. For internal clock oscillator
operation, an industry standard microprocessor crystal is connected externally
between the XTAL1 and XTAL2 pins. Alternatively, an external clock can be
connected to the XTAL1 pin to clock the internal baud rate generator for standard or
custom rates (see Table 6).
The generator divides the input 16
× clock by any divisor from 1 to 216 1. The
SC16C2550 divides the basic external clock by 16. The basic 16
× clock provides
table rates to support standard and custom applications using the same system
design. The rate table is congured via the DLL and DLM internal register functions.
Customized Baud Rates can be achieved by selecting the proper divisor values for
the MSB and LSB sections of baud rate generator.
Programming the Baud Rate Generator Registers DLM (MSB) and DLL (LSB)
provides a user capability for selecting the desired nal baud rate. The example in
Table 6 shows the selectable baud rate table available when using a 1.8432 MHz
external clock input.
Fig 5.
Crystal oscillator connection.
002aaa169
X1
1.8432 MHz
C1
22 pF
C2
47 pF
XT
AL1
XT
AL2
X1
1.8432 MHz
C1
47 pF
C2
100 pF
XT
AL1
XT
AL2
1.5 k
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SC16C2550IB48 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual UART with 16 bytes of transmit and receive FIFOs and infrared (IrDA) encoder/decoder
SC16C2550IB48,128 功能描述:UART 接口集成電路 16C 2.5V-5V 2CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550IB48,151 功能描述:UART 接口集成電路 DUAL UART 16B TRNSMT RECV ENCODER/DECODER RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550IB48,157 功能描述:UART 接口集成電路 16C 2.5V-5V 2CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC16C2550IN40 制造商:PHILIP 功能描述:
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