參數(shù)資料
型號： ST16C1450CQ48
廠商： STARTECH SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 2.97V TO 5.5V UART
中文描述： 1 CHANNEL(S), 448K bps, SERIAL COMM CONTROLLER, PQFP48
文件頁數(shù)： 31/32頁
文件大?。?/td> 355K
代理商： ST16C1450CQ48
á
2.97V TO 5.5VUART
ST16C1450/51
REV. 4.2.0
I
TABLE OF CONTENTS
GENERAL DESCRIPTION.................................................................................................1
F
EATURES
.....................................................................................................................................................1
A
PPLICATIONS
...............................................................................................................................................1
F
IGURE
1. B
LOCK
D
IAGRAM
............................................................................................................................................................. 1
F
IGURE
2. ST16C1450 P
INOUTS
..................................................................................................................................................... 2
F
IGURE
3. ST16C1451 P
INOUTS
..................................................................................................................................................... 3
ORDERING
INFORMATION
................................................................................................................................4
PIN DESCRIPTIONS .........................................................................................................5
DATA BUS INTERFACE.............................................................................................................................................5
MODEM OR SERIAL I/O INTERFACE ....................................................................................................................... 5
ANCILLARY SIGNALS................................................................................................................................................ 6
1.0 PRODUCT DESCRIPTION ....................................................................................................................7
2.0 FUNCTIONAL DESCRIPTIONS ............................................................................................................7
2.1 INTERNAL REGISTERS ................................................................................................................................... 7
2.2 CRYSTAL OSCILLATOR OR EXTERNAL CLOCK ......................................................................................... 8
2.3 PROGRAMMABLE BAUD RATE GENERATOR ............................................................................................. 8
F
IGURE
4. T
YPICAL
OSCILLATOR
CONNECTIONS
................................................................................................................................. 8
2.4 TRANSMITTER ................................................................................................................................................. 9
2.4.1 TRANSMIT HOLDING REGISTER (THR) - WRITE ONLY........................................................................................... 9
2.4.2 TRANSMITTER OPERATION....................................................................................................................................... 9
T
ABLE
1: T
YPICAL
DATA
RATES
WITH
A
14.7456 MH
Z
CRYSTAL
OR
EXTERNAL
CLOCK
........................................................................ 9
2.5 RECEIVER ...................................................................................................................................................... 10
2.5.1 RECEIVE HOLDING REGISTER (RHR) - READ-ONLY ............................................................................................ 10
F
IGURE
5. T
RANSMITTER
O
PERATION
............................................................................................................................................. 10
2.6 SPECIAL (ENHANCED FEATURE) MODE ................................................................................................... 11
2.6.1 SOFT RESET .............................................................................................................................................................. 11
2.6.2 POWER DOWN MODE............................................................................................................................................... 11
2.7 INTERNAL LOOPBACK ................................................................................................................................ 11
F
IGURE
6. R
ECEIVER
O
PERATION
IN
NON
-FIFO M
ODE
.................................................................................................................... 11
F
IGURE
7. I
NTERNAL
L
OOPBACK
..................................................................................................................................................... 12
3.0 UART INTERNAL REGISTERS ...........................................................................................................13
T
ABLE
2: ST16C145X UART INTERNAL REGISTERS ............................................................................................................... 13
T
ABLE
3: INTERNAL REGISTERS DESCRIPTION. S
HADED
BITS
ARE
ENABLED
WHEN
EFR B
IT
-4=1......................................... 14
4.0 INTERNAL REGISTER DESCRIPTIONS ............................................................................................15
4.1 RECEIVE HOLDING REGISTER (RHR) - READ- ONLY ............................................................................... 15
4.2 TRANSMIT HOLDING REGISTER (THR) - WRITE-ONLY ............................................................................ 15
4.3 INTERRUPT ENABLE REGISTER (IER) - READ/WRITE ............................................................................. 15
4.4 INTERRUPT STATUS REGISTER (ISR) - READ-ONLY ............................................................................... 15
4.4.1 INTERRUPT GENERATION:...................................................................................................................................... 16
4.4.2 INTERRUPT CLEARING: ........................................................................................................................................... 16
4.5 LINE CONTROL REGISTER (LCR) - READ/WRITE ..................................................................................... 16
T
ABLE
4: I
NTERRUPT
S
OURCE
AND
P
RIORITY
L
EVEL
....................................................................................................................... 16
4.6 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE 18
T
ABLE
5: P
ARITY
SELECTION
.......................................................................................................................................................... 18
4.7 LINE STATUS REGISTER (LSR) - READ ONLY ........................................................................................... 19
4.8 MODEM STATUS REGISTER (MSR) - READ ONLY .................................................................................... 20
4.9 SCRATCH PAD REGISTER (SPR) - READ/WRITE ...................................................................................... 21
T
ABLE
6: UART RESET CONDITIONS........................................................................................................................................ 21
ABSOLUTE MAXIMUM RATINGS ..................................................................................22
T
YPICAL
PACKAGE
THERMAL
RESISTANCE
DATA
(
MARGIN
OF
ERROR
: ± 15%).................................................22
ELECTRICAL CHARACTERISTICS................................................................................22
DC E
LECTRICAL
C
HARACTERISTICS
..............................................................................................................22
AC E
LECTRICAL
C
HARACTERISTICS
..............................................................................................................23
TA=0
O
TO
70
O
C (-40
O
TO
+85
O
C
FOR
INDUSTRIAL
GRADE
PACKAGE
), V
CC
IS
2.97V
TO
5.5V......................23
F
IGURE
8. C
LOCK
T
IMING
............................................................................................................................................................... 24
F
IGURE
9. M
ODEM
I
NPUT
/O
UTPUT
T
IMING
...................................................................................................................................... 24
F
IGURE
10. D
ATA
B
US
R
EAD
T
IMING
.............................................................................................................................................. 25
F
IGURE
11. D
ATA
B
US
W
RITE
T
IMING
............................................................................................................................................ 25
相關(guān)PDF資料
PDF描述
ST16C1450IJ28 2.97V TO 5.5V UART
ST16C1450IP28 2.97V TO 5.5V UART
ST16C1450IQ48 2.97V TO 5.5V UART
ST16C1451CJ28 2.97V TO 5.5V UART
ST16C1451CP28 2.97V TO 5.5V UART
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST16C1450CQ48-F 功能描述:UART 接口集成電路 UART 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
ST16C1450CQ48TR-F 制造商:Exar Corporation 功能描述:UART 1-CH 1Byte FIFO 3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:ST16C1450CQ48TR-F
ST16C1450IJ28 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART
ST16C1450IJ28-F 功能描述:UART 接口集成電路 UART 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
ST16C1450IP28 制造商:EXAR 制造商全稱:EXAR 功能描述:2.97V TO 5.5V UART
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