REV. 1.4.3 6 NOTE: Pin type: I=Input, O=Out" />
參數(shù)資料
型號: XR17C158IV
廠商: Exar Corporation
文件頁數(shù): 56/67頁
文件大?。?/td> 0K
描述: IC UART PCI BUS OCTAL 144LQFP
產(chǎn)品變化通告: Leaded UART, V&I Obsolescence 11/Apr/2011
標(biāo)準(zhǔn)包裝: 60
特點(diǎn): *
通道數(shù): 8
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 4.5 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(diào)制解調(diào)器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-LQFP(20x20)
包裝: 托盤
XR17C158
xr
5V PCI BUS OCTAL UART
REV. 1.4.3
6
NOTE: Pin type: I=Input, O=Output, IO= Input/output, OD=Output Open Drain.
EECS
115
O
Chip select to a EEPROM device like 93C46. It is manually selectable thru the
Configuration Register REGB. Requires a pull-up 4.7K ohm resistor for exter-
nal sensing of EEPROM during power up. See DAN112 for further details.
EEDI
114
O
Write data to EEPROM device. It is manually accessible thru the Configura-
tion Register REGB.
EEDO
113
I
Read data from EEPROM device. It is manually accessible thru the Configu-
ration Register REGB.
XTAL1
110
I
Crystal or external clock input.
XTAL2
109
O
Crystal or buffered clock output.
TMRCK
69
I
16-bit timer/counter external clock input.
ENIR
70
I
Infrared mode enable (active high). This pin is sampled during power up, fol-
lowing a hardware reset (RST#) or soft-reset (register RESET). It can be used
to start up all 8 UARTs in the infrared mode. The sampled logic state is trans-
ferred to MCR bit-6 in the UART.
TEST#
111
I
Factory Test. Connect to VCC for normal operation.
VCC
4,19,34,45,64,
90,112,137
+5V power supply. For a pin-to-pin compatible device that operates at 3.3V,
see the XR17D158.
GND
5,20,35,46,63,
89,136
Power supply common, ground.
Pin Description
NAME
PIN #TYPE
DESCRIPTION
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