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参数资料
| 型号： | ST16C2550CQ48 |
| 厂商： | EXAR CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| 中文描述： | 2 CHANNEL(S), 4M bps, SERIAL COMM CONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, TQFP-48 |
| 文件页数： | 5/34页 |
| 文件大小： | 443K |
| 代理商： | ST16C2550CQ48 |
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ST16C2550
5
Rev. 3.20
SYMBOL DESCRIPTION
Symbol
Pin
44
Signal
type
Pin Description
40
48
individual channels, A through B. The state at these pin(s)
are defined by the user and through the software setting of
MCR register bit-3. INT A-B are set to the active mode and
OP2 to a logic 0 when MCR-3 is set to a logic 1. INT A-B are
set to the three state mode and OP2 to a logic 1 when MCR-
3 is set to a logic 0. See bit-3, Modem Control Register
(MCR bit-3).
RESET
35
39
36
I
Reset. (active high) - A logic 1 on this pin will reset the
internal registers and all the outputs. The UART transmitter
output and the receiver input will be disabled during reset
time. (See ST16C2550 External Reset Conditions for ini-
tialization details.)
-RXRDY A-B
-
34,23
31,18
O
Receive Ready A-B (active low) - This function is associ-
ated with 44 pin PLCC and 48 pin TQFP packages only. This
function provides the RX FIFO/RHR status for individual
receive channels (A-B). RXRDY is primarily intended for
monitoring DMA mode 1 transfers for the receive data
FIFOs. A logic 0 indicates there is receive data to read/
unload, i.e., receive ready status with one or more RX
characters available in the FIFO/RHR. This pin is a logic 1
when the FIFO/RHR is empty or when the programmed
trigger level has not been reached. This signal can also be
used for single mode transfers (DMA mode 0).
-TXRDY A-B
-
1,12
43,6
O
Transmit Ready A-B (active low) - This function is associ-
ated with 44 pin PLCC and 48 pin TQFP packages only.
These outputs provide the TX FIFO/THR status for indi-
vidual transmit channels (A-B). TXRDY is primarily in-
tended for monitoring DMA mode 1 transfers for the trans-
mit data FIFOs. An individual channels -TXRDY A-B buffer
ready status is indicated by logic 0, i.e., at least one location
is empty and available in the FIFO or THR. This pin goes to
a logic 1 when there are no more empty locations in the
FIFO or THR. This signal can also be used for single mode
transfers (DMA mode 0).
VCC
40
44
42
Pwr
Power supply input.
相关PDF资料 |
PDF描述 |
|---|---|
| ST16C2550IJ44 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550IP40 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550CJ44 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
| ST16C2550CP40 | Power Supply IC; Supply Voltage Max:6V; Output Voltage:1.3V; Package/Case:20-TSSOP; Leaded Process Compatible:No; Output Voltage Max:1.3V; Peak Reflow Compatible (260 C):No; Supply Voltage Min:2.7V; Mounting Type:Surface Mount |
| ST16C2550IQ48 | DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFO’S |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST16C2550CQ48-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 |
| ST16C2550CQ48TR-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 |
| ST16C2550IJ44 | 制造商:Exar Corporation 功能描述: |
| ST16C2550IJ44-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 |
| ST16C2550IJ44TR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 16Byte FIFO 3.3V/5V 44-Pin PLCC T/R 制造商:Exar Corporation 功能描述:ST16C2550IJ44TR-F |
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