參數(shù)資料
型號： SC16C654BIBM
廠商： NXP Semiconductors N.V.
元件分類： 收發(fā)器
英文描述： 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit-s (max.), with 64-byte FIFOs and infrared (IrDA) encoder-decoder
封裝： SC16C654BIA68<SOT188-2 (PLCC68)|<<http://www.nxp.com/packages/SOT188-2.html<1<Always Pb-free,;SC16C654BIA68<SOT188-2 (PLCC68)|<<http://www.nxp.com/packages/SOT188-2.html&
文件頁數(shù)： 21/58頁
文件大小： 302K
代理商： SC16C654BIBM
9397 750 14965
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 02 — 20 June 2005
21 of 58
Philips Semiconductors
SC16C654B/654DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
SC16C654B/654DB sets the default baud rate table according to the state of the CLKSEL
pin. A logic 1 on CLKSEL will set the 1
×
clock default, whereas logic 0 will set the 4
×
clock
default table. Following the default clock rate selection during initialization, the rate tables
can be changed by the internal register MCR[7]. Setting MCR[7] to a logic 1 when
CLKSEL is a logic 1 provides an additional divide-by-4, whereas setting MCR[7] to a
logic 0 only divides by 1; see
Table 7
and
Figure 11
. 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 final baud rate. The example in
Table 7
shows the
two selectable baud rate tables available when using a 7.3728 MHz crystal.
Table 7:
Output baud rate
Baud rate generator programming table using a 7.3728 MHz clock
User
16
×
clock divisor
MCR[7] = 1
MCR[7] = 0
Decimal
50
200
2304
300
1200
384
600
2400
192
1200
4800
96
2400
9600
48
4800
19.2 k
24
9600
38.4 k
12
19.2 k
76.8 k
6
38.4 k
153.6 k
3
57.6 k
230.4 k
2
115.2 k
460.8 k
1
DLM
program value
(HEX)
DLL
program value
(HEX)
HEX
900
180
C0
60
30
18
0C
06
03
02
01
09
01
00
00
00
00
00
00
00
00
00
00
80
C0
60
30
18
0C
06
03
02
01
Fig 11. Baud rate generator circuitry
BAUD RATE
GENERATOR
LOGIC
BAUDOUT
MCR[7] = 1
MCR[7] = 0
DIVIDE-BY-1
LOGIC
DIVIDE-BY-4
LOGIC
CLOCK
OSCILLATOR
LOGIC
002aaa208
XTAL1
XTAL2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C654BIBM,128 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C654BIBM,151 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C654BIBM,157 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH 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
SC16C654BIBM151 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
SC16C654BIBM-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 4CH UART 64B 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
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