參數(shù)資料
型號： ST16C1551CJ28
廠商： EXAR CORP
元件分類： Serial IO/Communication Controller
英文描述： 1 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PQCC28
封裝： PLASTIC, LCC-28
文件頁數(shù)： 2/38頁
文件大小： 622K
代理商： ST16C1551CJ28
ST16C1550/51
xr
2.97V TO 5.5V UART WITH 16-BYTE FIFO
REV. 4.2.1
10
2.5
Transmitter
The transmitter section comprises of an 8-bit Transmit Shift Register (TSR) and 16 bytes of FIFO which
includes a byte-wide Transmit Holding Register (THR). TSR shifts out every data bit with the 16X internal
clock. A bit time is 16 clock periods. The transmitter sends the start-bit followed by the number of data bits,
inserts the proper parity-bit if enabled, and adds the stop-bit(s). The status of the FIFO and TSR are reported in
the Line Status Register (LSR bit-5 and bit-6).
2.5.1
Transmit Holding Register (THR) - Write Only
The transmit holding register is an 8-bit register providing a data interface to the host processor. The host
writes transmit data byte to the THR to be converted into a serial data stream including start-bit, data bits,
parity-bit and stop-bit(s). The least-significant-bit (Bit-0) becomes first data bit to go out. The THR is the input
register to the transmit FIFO of 16 bytes when FIFO operation is enabled by FCR bit-0. Every time a write
operation is made to the THR, the FIFO data pointer is automatically bumped to the next sequential data
location.
TABLE 2: TYPICAL DATA RATES WITH A 14.7456 MHZ CRYSTAL OR EXTERNAL CLOCK
OUTPUT Data Rate
MCR Bit-7=1
OUTPUT Data Rate
MCR Bit-7=0
DIVISOR FOR 16x
Clock (Decimal)
DIVISOR FOR 16x
Clock (HEX)
DLM
PROGRAM
VALUE (HEX)
DLL
PROGRAM
VALUE (HEX)
DATA RATE
ERROR (%)
100
400
2304
900
09
00
0
600
2400
384
180
01
80
0
1200
4800
192
C0
00
C0
0
2400
9600
96
60
00
60
0
4800
19.2k
48
30
00
30
0
9600
38.4k
24
18
00
18
0
19.2k
76.8k
12
0C
00
0C
0
38.4k
153.6k
6
06
00
06
0
57.6k
230.4k
4
04
00
04
0
115.2k
460.8k
2
02
00
02
0
230.4k
921.6k
1
01
00
01
0
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參數(shù)描述
ST16C1551CJ28-F 功能描述:UART 接口集成電路 UART W/16BYTE 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
ST16C1551CP28 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1551CQ48 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART WITH 16-BYTE FIFO
ST16C1551CQ48-F 功能描述:UART 接口集成電路 UART W/16BYTE 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
ST16C1551IJ28 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
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