參數(shù)資料
型號: XR16M680IL32-F
廠商: Exar Corporation
文件頁數(shù): 56/57頁
文件大?。?/td> 0K
描述: IC UART FIFO 32B 32QFN
標準包裝: 490
特點: *
通道數(shù): 1,UART
FIFO's: 32 字節(jié)
規(guī)程: RS232,RS422,RS485
電源電壓: 1.62 V ~ 3.63 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: 32-VFQFN 裸露焊盤
供應商設備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 托盤
XR16M680
8
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
REV. 1.0.0
2.0
FUNCTIONAL DESCRIPTIONS
2.1
CPU Interface
The CPU interface is 8 data bits wide with 3 address lines and control signals to execute data bus read and
write transactions. The M680 data interface supports the Intel and Motorola compatible types of CPUs. No
clock (oscillator nor external clock) is required for a data bus transaction. Each bus cycle is asynchronous
using CS#, IOR# and IOW# or R/W# inputs. A typical data bus interconnection for Intel and Motorola mode is
shown in Figure 4.
FIGURE 4. XR16M680 TYPICAL INTEL/MOTOROLA DATA BUS INTERCONNECTIONS
VCC
A0
A1
A2
UART_CS#
IOR#
IOW#
CS#
IOR#
IOW#
UART_INT
INT
Intel Data Bus Interconnections
GND
UART_RESET
RESET
16/68#
RI#
CD#
DSR#
CTS#
RTS#
DTR#
RX
TX
PwrSave
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
Serial Transceivers of
RS-232
RS-485
RS-422
Or Infrared
POWERSAVE
VCC
A0
A1
A2
UART_CS#
R/W#
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
CS#
D0
D1
D2
D3
D4
D5
D6
D7
IOR#
IOW#
UART_IRQ#
INT
Motorola Data Bus Interconnections
GND
UART_RESET#
RESET
RI#
CD#
DSR#
CTS#
RTS#
DTR#
RX
TX
VCC
16/68#
vcc
POWERSAVE
PwrSave
Serial Transceivers of
RS-232
RS-485
RS-422
Or Infrared
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