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參數(shù)資料
| 型號： | XR17V252IM-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 34/69頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART PCI BUS DUAL 100TQFP |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 特點(diǎn)： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 64 字節(jié) |
| 規(guī)程： | RS485 |
| 電源電壓： | 3.3V，5V |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動位檢測功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-TQFP |
| 供應(yīng)商設(shè)備封裝： | 100-TQFP（14x14） |
| 包裝： | 托盤 |
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XR17V252
4
66 MHZ PCI BUS DUAL UART WITH POWER MANAGEMENT SUPPORT
REV. 1.0.2
DSR0#
68
I
UART channel 0 Data Set Ready or general purpose input (active low). This
input should be connected to VCC when not used.
CD0#
69
I
UART channel 0 Carrier Detect or general purpose input (active low). This
input should be connected to VCC when not used.
RI0#
70
I
UART channel 0 Ring Indicator or general purpose input (active low). This
input should be connected to VCC when not used.
TX1
62
O
UART channel 1 Transmit Data or infrared transmit data. Normal TXD output
idles HIGH while infrared TXD output idles LOW.
RX1
55
I
UART channel 1 Receive Data or infrared receive data. Normal RXD input
idles HIGH while infrared RXD input idles LOW. In the infrared mode, the
polarity of the incoming RXD signal can be selected via FCTR bit-4. If this bit
is a logic 0, a LOW on the RXD input is considered a mark and if this bit is a
logic 1, a HIGH on the RXD input is considered a space.
RTS1#
60
O
UART channel 1 Request to Send or general purpose output (active low). If
this output is not used, leave it unconnected.
CTS1#
56
I
UART channel 1 Clear to Send or general purpose input (active low). This
input should be connected to VCC when not used.
DTR1#
61
O
UART channel 1 Data Terminal Ready or general purpose output (active
low). If this output is not used, leave it unconnected.
DSR1#
57
I
UART channel 1 Data Set Ready or general purpose input (active low). This
input should be connected to VCC when not used.
CD1#
58
I
UART channel 1 Carrier Detect or general purpose input (active low). This
input should be connected to VCC when not used.
RI1#
59
I
UART channel 1 Ring Indicator or general purpose input (active low). This
input should be connected to VCC when not used.
ANCILLARY SIGNALS
MPIO0-MPIO7
52-45
I/O
Multi-purpose inputs/outputs 0-7. The function of these pin are defined thru
the Configuration Register MPIOSEL, MPIOLVL, MPIOINV, MPIO3T and
MPIOINT
EECK
84
O
Serial clock to EEPROM. An internal clock of CLK divide by 256 is used for
reading the vendor and sub-vendor ID during power up or reset. However, it
can be manually clocked thru the Configuration Register REGB.
EECS
83
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 resister for
external sensing of EEPROM during power up. See DAN112 for further
details.
EEDI
82
O
Write data to EEPROM device. It is manually accessible thru the Configura-
tion Register REGB. The V252 auto-configuration register interface logic
uses the 16-bit format.
EEDO
81
I
Read data from EEPROM device. It is manually accessible thru the Configu-
ration Register REGB.
XTAL1
77
I
Crystal or external clock input.
XTAL2
76
O
Crystal or buffered clock output.
TMRCK
75
I
16-bit timer/counter external clock input.
PIN DESCRIPTIONS
NAME
PIN #TYPE
DESCRIPTION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR17V252IMTR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 64Byte FIFO 3.3V 100-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR17V252IMTR-F |
| XR17V254 | 制造商:EXAR 制造商全稱:EXAR 功能描述:66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT |
| XR17V254_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT |
| XR17V254IV | 制造商:EXAR 制造商全稱:EXAR 功能描述:66MHZ PCI BUS QUAD UART WITH POWER MANAGEMENT SUPPORT |
| XR17V254IV-0A-EVB | 功能描述:UART 接口集成電路 Supports V254 144 ld LQFP,PCI Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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