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参数资料
型号： ST16C2550
厂商： Exar Corporation
英文描述： Dual UART with 16-Byte of Transmit and Receive FIFO(双通用异步接收器/发送器（带16字节接收和发送先进先出）)
中文描述： 双UART具有16的发送和接收FIFO（双通用异步接收器/发送器（带16字节接收和发送先进先出字节））
文件页数： 1/34页
文件大小： 314K
代理商： ST16C2550
EXAR
Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000
FAX (510) 668-7017
ST16C2550
DUAL UART WITH 16-BYTE OF
TRANSMIT AND RECEIVE FIFO’S
Rev. 3.40
PLCC Package
DESCRIPTION
The ST16C2550 (2550) is a dual universal asynchronous receiver and transmitter (UART). The ST16C2550 is
an improved version of the NS16C550 UART with higher operating speed and lower access time. The 2550
provides enhanced UART functions with 16 byte FIFO’s, a modem control interface, and data rates up to 4Mbps.
Onboard status registers provide the user with error indications and operational status. System interrupts and
modem control features may be tailored by external software to meet specific user requirements. An internal loop-
back capability allows onboard diagnostics. Independent programmable baud rate generators are provided to
select transmit and receive clock rates from 50Bps to 4Mbps. The Baud rate generator can be configured for either
crystal or external clock input. The 2550 is available in a 40-pin plastic-DIP, 44-pin PLCC, and 48-pin TQFP packages.
The 40 pin package does not offer TXRDY and RXRDY pins (DMA Signal monitoring). Otherwise the three package
versions are the same. The 2550 is functionally compatible with the 16C2450. The 2550 is fabricated in an advanced
CMOS process capable of operating at 5V or 3.3V power supply and achieve high speed requirements.
FEATURES
Dual UART device
Pin and functionally compatible to ST16C2450 and
software compatible with INS8250, NS16C550
Up to 4 Mbps with external clock of 64 MHz.
Up to 1.5Mbps data rate with a 24MHz crystal
frequency.
16 byte transmit FIFO to reduce the bandwidth
requirement of the external CPU.
16 byte receive FIFO with error flags to reduce the
bandwidth requirement of the external CPU.
Independent transmit and receive UART control
Four selectable Receive FIFO interrupt trigger
levels
Modem control signals (-CTS, -RTS, -DSR, -DTR,
-RI, -CD, and Software controllable line break)
Programmable character lengths (5, 6, 7, 8) with
Even, odd, or no parity
Status report register
Crystal or external clock input
TTL compatible inputs, outputs
3.3V or 5V supply operation
ORDERING INFORMATION
Part number
ST16C2550CP40
ST16C2550CJ44
ST16C2550CQ48
Pins Package
40
PDIP
44
PLCC
48
TQFP
Operating temperature
0° C to + 70° C
0° C to + 70° C
0° C to + 70° C
April 2000
Part number
ST16C2550IP40
ST16C2550IJ44
ST16C2550IQ48
Pins PackageOperating temperature
40
PDIP
44
PLCC
48
TQFP
-40° C to + 85° C
-40° C to + 85° C
-40° C to + 85° C
6
5
4
3
2
1
4
4
4
4
4
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
1
1
2
2
2
2
2
2
2
2
2
D5
D6
D7
RXB
RXA
-TXRDYB
TXA
TXB
-OP2B
-CSA
-CSB
RESET
-DTRB
-DTRA
-RTSA
-OP2A
-RXRDYA
INTA
INTB
A0
A1
A2
X
X
-
-
G
-
-
-
-
-
-
D
D
D
D
D
-
V
-
-
-
-
ST16C2550CJ44
相关PDF资料
PDF描述
ST16C2552 Dual UART with 16-Byte Transmit and Receive FIFO(双通用异步接收器/发送器（带16字节接收和发送先进先出）)
ST16C450 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
ST16C450CJ44 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
ST16C450CP40 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
ST16C450CQ48 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART)
相关代理商/技术参数
参数描述
ST16C2550_04 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO
ST16C2550CJ-0A-EB 功能描述:界面开发工具 Supports C2550 44 ld PLCC, ISA Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V
ST16C2550CJ44 制造商:EXAR 制造商全称:EXAR 功能描述:2.97V TO 5.5V DUART WITH 16-BYTE FIFO
ST16C2550CJ44-F 功能描述:UART 接口集成电路 2.97V-5.5V 16B FIFO temp 0C to 70C; UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
ST16C2550CJ44TR-F 功能描述:UART 接口集成电路 DUAL UART W/16BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
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