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参数资料
| 型号： | SC16C2552BIA44,512 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 33/37页 |
| 文件大小： | 0K |
| 描述： | IC UART DUAL SOT187-2 |
| 标准包装： | 26 |
| 特点： | 2 通道 |
| 通道数： | 2，DUART |
| FIFO's： | 16 字节 |
| 电源电压： | 2.5V，3.3V，5V |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC |
| 包装： | 管件 |
| 其它名称： | 935274408512 SC16C2552BIA44 SC16C2552BIA44-ND |
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SC16C2552B_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 12 February 2009
5 of 38
NXP Semiconductors
SC16C2552B
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
RTSA
36
O
Request to Send A, B (active LOW). These outputs are associated with individual UART
channels A through B. A logic 0 on the RTSn pin indicates the transmitter is ready to
transmit data. Writing a logic 1 in the modem control register MCR[1] will set this pin to a
logic 0, indicating that the transmitter is ready to transmit data. After a reset, this pin will be
set to a logic 1.
RTSB
23
O
RXA
39
I
Receive data A, B. These inputs are associated with individual serial channel data to the
SC16C2552B receive input circuits A through B. The RXn signal will be a logic 1 during
reset, idle (no data). During the local Loopback mode, the RXn input pin is disabled and TXn
data is connected to the UART RXn input, internally.
RXB
25
I
TXA
38
O
Transmit data A, B. These outputs are associated with individual serial transmit channel
data from the SC16C2552B. The TXn signal will be a logic 1 during reset, idle (no data), or
when the transmitter is disabled. During the local Loopback mode, the TXn output pin is
disabled and TXn data is internally connected to the UART RXn input.
TXB
26
O
TXRDYA1
O
Transmit Ready A, B (active LOW). These outputs provide the TX FIFO/THR status for
individual transmit channels (A, B). TXRDYn is primarily intended for monitoring
DMA mode 1 transfers for the transmit data FIFOs. An individual channel’s TXRDYA,
TXRDYB buffer ready status is indicated by logic 0, i.e., at least one location is empty and
available in the FIFO or THR. This signal can also be used for single mode transfers (DMA
mode 0).
TXRDYB
32
O
VCC
33, 44
I
Power supply input.
XTAL1
11
I
Crystal or external clock input. Functions as a crystal input or as an external clock input.
A crystal can be connected between this pin and XTAL2 to form an internal oscillator circuit.
Alternatively, an external clock can be connected to this pin to provide custom data rates.
XTAL2
13
O
Output of the crystal oscillator or buffered clock. (See also XTAL1.) Crystal oscillator
output or buffered clock output. Should be left open if an external clock is connected to
XTAL1.
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C2552BIA44-T | 功能描述:UART 接口集成电路 16CB 2.5V-5V 2CH UART 16B 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 |
| SC16C2552CIA44,512 | 制造商:NXP Semiconductors 功能描述: 制造商:NXP Semiconductors 功能描述:SC16C2552CIA44/PLCC44/TUBEDP// - Rail/Tube |
| SC16C2552CIA44,518 | 制造商:NXP Semiconductors 功能描述:SC16C2552CIA44/PLCC44/REEL13DP// - Tape and Reel |
| SC16C2552CIA44,529 | 制造商:NXP Semiconductors 功能描述:SC16C2552CIA44/PLCC44/TUBESMDP// - Rail/Tube |
| SC16C2552IA44 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Dual UART with 16-byte transmit and receive FIFOs |
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