參數(shù)資料
型號(hào): XR19L210IL40-F
廠商: Exar Corporation
文件頁(yè)數(shù): 40/43頁(yè)
文件大?。?/td> 0K
描述: IC UART/TXRX RS232 40QFN
標(biāo)準(zhǔn)包裝: 490
特點(diǎn): *
通道數(shù): 1,UART
FIFO's: 16 字節(jié)
規(guī)程: RS232
電源電壓: 3 V ~ 5.5 V
帶自動(dòng)流量控制功能:
帶故障啟動(dòng)位檢測(cè)功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 40-QFN 裸露焊盤(6x6)
包裝: 托盤
XR19L210
6
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.2
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 L210 data interface supports the Intel compatible types of CPUs and it is compatible to
the industry standard 16C550 UART. No clock (oscillator nor external clock) is required to operate 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 3.
FIGURE 3. XR19L210 TYPICAL INTEL/MOTOROLA DATA BUS INTERCONNECTIONS
VCC
A0
A1
A2
UART_CS#
IOR#
IOW#
D0
D1
D2
D3
D4
D5
D6
D7
A0
A1
A2
CS#
D0
D1
D2
D3
D4
D5
D6
D7
IOR#
IOW#
UART_INT
INT
RS-232
Interface
Intel Data Bus Interconnections
GND
UART_RESET
RESET
16/68#
CTS
RTS
RX
TX
PwrSave
Power-Save
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
CTS
RTS
RX
TX
PwrSave
VCC
16/68#
RS-232
Interface
Power-Save
4.7K
VCC
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