参数资料
型号: SC16C2552BIA44,512
厂商: NXP Semiconductors
文件页数: 2/37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:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
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
SC16C2552B_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 12 February 2009
10 of 38
NXP Semiconductors
SC16C2552B
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
made available at the user data interface D0 to D7. The user optionally compares the
received data to the initial transmitted data for verifying error-free operation of the UART
TX/RX circuits.
In this mode, the receiver and transmitter interrupts are fully operational. The Modem
Control Interrupts are also operational. However, the interrupts can only be read using
lower four bits of the Modem Status Register (MSR[3:0]) instead of the four Modem Status
Register bits 7:4. The interrupts are still controlled by the IER.
Fig 4.
Internal Loopback mode diagram
CTSA, CTSB
TRANSMIT
FIFO
REGISTERS
TXA, TXB
RECEIVE
SHIFT
REGISTER
RECEIVE
FIFO
REGISTERS
RXA, RXB
INTERCONNECT
B
US
LINES
AND
CONTR
OL
SIGNALS
SC16C2552B
TRANSMIT
SHIFT
REGISTER
002aaa489
DATA BUS
AND
CONTROL
LOGIC
REGISTER
SELECT
LOGIC
INTERRUPT
CONTROL
LOGIC
D0 to D7
IOR
IOW
RESET
INTA, INTB
TXRDYA, TXRDYB
RXRDYA, RXRDYB
CLOCK AND
BAUD RATE
GENERATOR
MODEM
CONTROL
LOGIC
RTSA, RTSB
DSRA, DSRB
DTRA, DTRB
RIA, RIB
(OP1A, OP1B)
CDA, CDB
(OP2A, OP2B)
MCR[4] = 1
XTAL2
XTAL1
A0 to A2
CS
CHSEL
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