REV. 2.1.3 6 Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain. CLK" />
參數(shù)資料
型號: XR16C2850CJ-F
廠商: Exar Corporation
文件頁數(shù): 48/51頁
文件大小: 0K
描述: IC UART FIFO 128B 44PLCC
標準包裝: 27
特點: *
通道數(shù): 2,DUART
FIFO's: 128 字節(jié)
規(guī)程: RS232,RS485
電源電壓: 2.97 V ~ 5.5 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動位檢測功能:
帶調制解調器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應商設備封裝: 44-PLCC(16.59x16.59)
包裝: 管件
XR16C2850
xr
2.97V TO 5.5V DUAL UART WITH 128-BYTE FIFOS
REV. 2.1.3
6
Pin type: I=Input, O=Output, I/O= Input/output, OD=Output Open Drain.
CLKSEL
-
25
I
Clock Pre-scaler select. Connect to VCC for divide by 1 and GND for
divide by 4. MCR[7] can override the state of this pin following reset or
initialization. See
Figure 6 and MCR[7].
CLK8/16
-
24
I
Transmit/Receive data sampling rate. Connect to VCC for normal 16X
sampling clock (standard baud rates) or GND for 8X sampling clock to
double the standard baud rates.
RESET
39
36
I
Reset (active high) - A longer than 40 ns HIGH pulse on this pin will
reset the internal registers and all outputs. The UART transmitter output
will be held at logic 1, the receiver input will be ignored and outputs are
reset during reset period (see Table 16).
VCC
44
42
Pwr
2.97V to 5.5V power supply. All inputs are 5V tolerant for devices with
top mark date code of "F2 YYWW" and newer.
GND
22
17
Pwr
Power supply common, ground.
N.C.
none
12
No Connection.
NAME
44-PLCC
PIN #
48-TQFP
PIN #
TYPE
DESCRIPTION
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