参数资料
型号: SC16C850IET,157
厂商: NXP Semiconductors
文件页数: 7/55页
文件大小: 0K
描述: IC UART SINGLE W/FIFO 36-TFBGA
标准包装: 2,450
特点: 可编程
通道数: 1,UART
FIFO's: 128 字节
规程: RS485
电源电压: 2.5 V ~ 3.3 V
带自动流量控制功能:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 36-TFBGA
供应商设备封装: 36-TFBGA(3.5x3.5)
包装: 托盘
其它名称: 935284685157
SC16C850IET
SC16C850IET-ND
SC16C850
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 11 November 2010
15 of 55
NXP Semiconductors
SC16C850
2.5 to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
Programming the baud rate generator registers CLKPRES, DLM (MSB) and DLL (LSB)
provides a user capability for selecting the desired final baud rate. The example in Table 7
shows the selectable baud rate table available when using a 1.8432 MHz external clock
input when MCR[7] = 0, and CLKPRES = 0x00.
Fig 7.
Crystal oscillator connection
If fXTAL1 frequency is greater than 50 MHz, then a DC blocking capacitor is required.
XTAL2 pin should be left unconnected when an external clock is used.
Fig 8.
External clock connection
Table 7.
Baud rate generator programming table using a 1.8432 MHz clock when
MCR[7] = 0 and CLKPRES[3:0] = 0
Output
baud rate
(bit/s)
Output
16
× clock divisor
(decimal)
Output
16
× clock divisor
(hexadecimal)
DLM
program value
(hexadecimal)
DLL
program value
(hexadecimal)
50
2304
900
09
00
75
1536
600
06
00
110
1047
417
04
17
150
768
300
03
00
300
384
180
01
80
600
192
C0
00
C0
1.2 k
96
60
00
60
2.4 k
48
30
00
30
3.6 k
32
20
00
20
4.8 k
24
18
00
18
7.2 k
16
10
00
10
9.6 k
12
0C
00
0C
19.2 k
6
06
00
06
002aaa870
C2
47 pF
XTAL1
XTAL2
X1
1.8432 MHz
C1
22 pF
C2
33 pF
XTAL1
XTAL2
1.5 k
Ω
X1
1.8432 MHz
C1
22 pF
002aac630
XTAL1
XTAL2
100 pF
fXTAL1
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