参数资料
型号: XR16M670IL32-F
厂商: Exar Corporation
文件页数: 34/50页
文件大小: 0K
描述: IC UART FIFO 32B 32QFN
标准包装: 490
特点: *
通道数: 1,UART
FIFO's: 32 字节
规程: RS232,RS422,RS485
电源电压: 1.62 V ~ 3.63 V
带自动流量控制功能:
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: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 托盘
XR16M670
4
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
REV. 1.0.1
Pin type: I=Input, O=Output, I/O= Input/output.
DSR#
-
25
C4
I
UART Data-Set-Ready (active low) or general purpose input. This
input should be connected to VCC when not used.
CD#
-
26
-
I
UART Carrier-Detect (active low) or general purpose input. This
input should be connected to VCC when not used.
RI#
-
27
-
I
UART Ring-Indicator (active low) or general purpose input. This
input should be connected to VCC when not used.
ANCILLARY SIGNALS
XTAL1
8
10
D5
I
Crystal or external clock input.
XTAL2
-
11
-
O
Crystal or buffered clock output.
PwrSave
7
-
I
Power-Save (active high). This feature isolates the M670’s data bus
interface from the host preventing other bus activities that cause
higher power drain during sleep mode. See Sleep Mode with Auto
Wake-up and Power-Save Feature section for details. This pin does
not have a pull-down resistor. This input should be connected to
GND when not used.
RESET
17
23
A2
I
This input is active high. A 40 ns minimum active pulse on this pin
will reset the internal registers and all outputs of the UART. The
UART transmitter output will be held at logic 1, the receiver input
will be ignored and outputs are reset during reset period (see UART
Reset Conditions).
VCC
19
28
B1
Pwr
1.62V to 3.63V power supply.
GND
10
13
E5
Pwr
Power supply common, ground.
GND
Center
Pad
Center
Pad
-
Pwr
The center pad on the backside of the QFN package is metallic and
should be connected to GND on the PCB. The thermal pad size on
the PCB should be the approximate size of this center pad and
should be solder mask defined. The solder mask opening should be
at least 0.0025" inwards from the edge of the PCB thermal pad.
NC
-
2, 9, 15,
16
-
No Connects.
Pin Description
NAME
24-QFN
PIN#
32-QFN
PIN#
25-BGA
PIN#
TYPE
DESCRIPTION
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