參數(shù)資料
型號: PIC16C745/JW
廠商: Microchip Technology
文件頁數(shù): 141/165頁
文件大?。?/td> 0K
描述: IC MCU EPROM8KX14 USB A/D 28CDIP
標準包裝: 15
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 24MHz
連通性: SCI,UART/USART,USB
外圍設備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 14KB(8K x 14)
程序存儲器類型: EPROM,UV
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4.35 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 5x8b
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 28-CDIP(0.300",7.62mm)窗口
包裝: 管件
2000 Microchip Technology Inc.
Preliminary
DS41124C-page 77
PIC16C745/765
11.0
UNIVERSAL SYNCHRONOUS
ASYNCHRONOUS RECEIVER
TRANSMITTER (USART)
The Universal Synchronous Asynchronous Receiver
Transmitter (USART) module is one of the two serial
I/O modules. (USART is also known as a Serial Com-
munications Interface or SCI). The USART can be con-
figured as a full duplex asynchronous system that can
communicate with peripheral devices, such as CRT ter-
minals and personal computers, or it can be configured
as a half duplex synchronous system that can commu-
nicate with peripheral devices, such as A/D or D/A inte-
grated circuits, Serial EEPROMs, etc.
The USART can be configured in the following modes:
Asynchronous (full duplex)
Synchronous - Master (half duplex)
Synchronous - Slave (half duplex)
Bits SPEN (RCSTA<7>) and TRISC<7:6> have to be
set in order to configure pins RC6/TX/CK and RC7/RX/
DT as the Universal Synchronous Asynchronous
Receiver transmitter.
REGISTER 11-1:
TRANSMIT STATUS AND CONTROL REGISTER (TXSTA: 98h)
R/W-0
U-0
R/W-0
R-1
R/W-0
CSRC
TX9
TXEN
SYNC
BRGH
TRMT
TX9D
R
= Readable bit
W = Writable bit
U
= Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7:
CSRC: Clock Source Select bit
Asynchronous mode
Don’t care
Synchronous mode
1
= Master mode (Clock generated internally from BRG)
0
= Slave mode (Clock from external source)
bit 6:
TX9: 9-bit Transmit Enable bit
1
= Selects 9-bit transmission
0
= Selects 8-bit transmission
bit 5:
TXEN: Transmit Enable bit
1
= Transmit enabled
0
= Transmit disabled
Note: SREN/CREN overrides TXEN in SYNC mode.
bit 4:
SYNC: USART Mode Select bit
1
= Synchronous mode
0
= Asynchronous mode
bit 3:
Unimplemented: Read as '0'
bit 2:
BRGH: High Baud Rate Select bit
Asynchronous mode
1
= High speed
0
= Low speed
Synchronous mode
Unused in this mode
bit 1:
TRMT: Transmit Shift Register Status bit
1
= TSR empty
0
= TSR full
bit 0:
TX9D: 9th bit of transmit data. (Can be used for parity.)
745cov.book Page 77 Wednesday, August 2, 2000 8:24 AM
相關PDF資料
PDF描述
PIC16F723A-I/SS MCU PIC 7KB FLASH XLP 28-SSOP
PIC12C508A-04/SN IC MCU OTP 512X12 8SOIC
PIC12C509A-04/SM IC MCU OTP 1KX12 8-SOIJ
PIC16LF627T-04I/SO IC MCU FLASH 1KX14 COMP 18SOIC
PIC12C509A-04/P IC MCU OTP 1KX12 8DIP
相關代理商/技術參數(shù)
參數(shù)描述
PIC16C745T-I/SO 功能描述:8位微控制器 -MCU 14KB 256 RAM 22 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C74A/JW 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C74A-04/L 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
PIC16C74A-04/L 制造商:Microchip Technology Inc 功能描述:8BIT CMOS MCU SMD 16C74 PLCC44
PIC16C74A-04/P 功能描述:8位微控制器 -MCU 7KB 192 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT