參數(shù)資料
型號: 25LC128
廠商: Microchip Technology Inc.
英文描述: 128K 5.0V SPI Bus Serial EEPROM(2.5~5.5V,128K位,SPI總線串行EEPROM)
中文描述: 128K的5.0V SPI總線串行EEPROM(2.5?5.5V的,128K的位和SPI總線串行EEPROM的)
文件頁數(shù): 69/170頁
文件大?。?/td> 4191K
代理商: 25LC128
2003 Microchip Technology Inc.
Preliminary
DS40300C-page 67
PIC16F62X
12.0
UNIVERSAL SYNCHRONOUS/
ASYNCHRONOUS RECEIVER/
TRANSMITTER (USART)
MODULE
The Universal Synchronous Asynchronous Receiver
Transmitter (USART) module is one of the two serial
I/O modules. (USART is also known as a Serial
Communications Interface or SCI). The USART can be
configured as a full duplex asynchronous system that
can communicate with peripheral devices such as CRT
terminals and personal computers, or it can be config-
ured as a half duplex synchronous system that can
communicate with peripheral devices such as A/D or D/
A integrated circuits, Serial EEPROMs etc.
The USART can be configured in the following modes:
Asynchronous (full duplex)
Synchronous - Master (half duplex)
Synchronous - Slave (half duplex)
Bit SPEN (RCSTA<7>), and bits TRISB<2:1>, have to
be set in order to configure pins RB2/TX/CK and RB1/
RX/DT as the Universal Synchronous Asynchronous
Receiver Transmitter.
REGISTER 12-1:
TXSTA: TRANSMIT STATUS AND CONTROL REGISTER (ADDRESS: 98h)
R/W-0
R/W-0
R/W-0
R/W-0
U-0
R/W-0
R-1
R/W-0
CSRC
TX9
TXEN
SYNC
BRGH
TRMT
TX9D
bit 7
bit 0
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
TXEN
: Transmit Enable bit
(1)
1
= Transmit enabled
0
= Transmit disabled
bit 5
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 PARITY bit.
Note
1:
SREN/CREN overrides TXEN in SYNC mode.
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
’1’ = Bit is set
’0’ = Bit is cleared
x = Bit is unknown
相關PDF資料
PDF描述
25C256 256K 5.0V SPI Bus Serial EEPROM(4.5~5.5V,256K位,SPI總線串行EEPROM)
25C160 8K/16K 5.0V SPI Bus Serial EEPROM
25C080 8K 5.0V SPI Bus Serial EEPROM(4.5~5.5V,3MHz,8K位,10M次可自定時擦寫周期,EEPROM)
25C320 32K 5.0V SPI Bus Serial EEPROM
25C320T 32K SPI Bus Serial EEPROM
相關代理商/技術參數(shù)
參數(shù)描述
25LC128-E/MF 功能描述:電可擦除可編程只讀存儲器 128k 32KX8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
25LC128-E/P 功能描述:電可擦除可編程只讀存儲器 128k 32KX8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
25LC128-E/SM 功能描述:電可擦除可編程只讀存儲器 128k 32KX8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
25LC128-E/SN 功能描述:電可擦除可編程只讀存儲器 128k 32KX8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
25LC128-E/ST 功能描述:電可擦除可編程只讀存儲器 128k 32KX8 2.5V SER EE EXT RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8