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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： | 4/34页 |
| 文件大小： | 314K |
| 代理商： | ST16C2550 |
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ST16C2550
4
Rev. 3.40
SYMBOL DESCRIPTION
Symbol
Pin
44
Signal
type
Pin Description
40
48
A0
28
31
28
I
Address-0 Select Bit. - Internal register address selection.
A1
27
30
27
I
Address-1 Select Bit. - Internal register address selection.
A2
26
29
26
I
Address-2 Select Bit. - Internal register address selection.
-CS A-B
14,15
16,17
10,11
I
Chip Select A, B (active low) - This function is associated
with individual channels, A through B. These pins enable
data transfers between the user CPU and the 2550 for the
channel(s) addressed. Individual UART sections (A, B) are
addressed by providing a logic 0 on the respective -CS A-
B pin.
D0-D7
1-8
2-9
44-48
1-3
I/O
Data Bus (Bi-directional) - These pins are the eight bit, three
state data bus for transferring information to or from the
controlling CPU. D0 is the least significant bit and the first
data bit in a transmit or receive serial data stream.
GND
20
22
17
Pwr
Signal and power ground.
INT A-B
30,29
33,32
30,29
O
Interrupt A, B (three state) - This function is associated with
individual channel interrupts, INT A-B. INT A-B are enabled
when MCR bit-3 is set to a logic 1, interrupts are enabled in
the interrupt enable register (IER), and when an interrupt
condition exists. Interrupt conditions include: receiver er-
rors, available receiver buffer data, transmit buffer empty,
or when a modem status flag is detected.
-IOR
21
24
19
I
Read strobe. (active low Strobe) - A logic 0 transition on this
pin will load the contents of an Internal register defined by
address bits A0-A2 onto the 2550 data bus (D0-D7) for
access by an external CPU.
-IOW
18
20
15
I
Write strobe. (active low strobe) - A logic 0 transition on this
pin will transfer the contents of the data bus (D0-D7) from
the external CPU to an internal register that is defined by
address bits A0-A2.
-OP2 A-B
31,13
35,15
32,9
O
Output -2 (User Defined). - This function is associated with
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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