參數(shù)資料
型號(hào)： XR17D158IV
廠商： EXAR CORP
元件分類： 微控制器/微處理器
英文描述： UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
中文描述： 8 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, TQFP-144
文件頁(yè)數(shù)： 3/72頁(yè)
文件大?。?/td> 1520K
代理商： XR17D158IV
xr
REV. 1.2.1
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
XR17D158
3
PIN DESCRIPTIONS
N
AME
P
IN
#
T
YPE
D
ESCRIPTION
PCI LOCAL BUS INTERFACE
RST#
134
I
PCI bus reset input (active low). It resets the PCI local bus configuration
space registers, device configuration registers and UART channel registers to
the default condition.
CLK
135
I
PCI bus clock input of up to 33.34MHz.
AD31-AD25,
AD24,
AD23-AD16,
AD15-AD8,
AD7-AD0
138-144,
1,
6-13,
26-33,
37-44
IO
Address data lines [31:0] (bidirectional).
FRAME#
15
I
Bus transaction cycle frame (active low). It indicates the beginning and dura-
tion of an access.
C/BE0#-
C/BE3#
36,25,14,2
I
Bus Command/Byte Enable [3:0] (active low). This line is multiplexed for bus
Command during the address phase and Byte Enables during the data
phase.
IRDY#
16
I
Initiator Ready (active low). During a write, it indicates that valid data is
present on data bus. During a read, it indicates the master is ready to accept
data.
TRDY#
17
O
Target Ready (active low).
STOP#
21
O
Target request to stop current transaction (active low).
IDSEL
3
I
Initialization device select (active high).
DEVSEL#
18
O
Device select to the XR17D158 (active low).
INTA#
133
OD
Device interrupt from XR17D158 (open drain, active low).
PAR
24
IO
Parity is even across AD[31:0] and C/BE[3:0]# (bidirectional, active high).
PERR#
22
O
Data Parity error indicator, except for Special Cycle transactions (active low).
Optional in bus target application.
SERR#
23
OD
System error indicator, Address parity or Data parity during Special Cycle
transactions (open drain, active low). Optional in bus target application.
MODEM OR SERIAL I/O INTERFACE
TX0
125
O
UART channel 0 Transmit Data or infrared transmit data. Normal TXD output
idles HIGH while infrared TXD output idles LOW.
RX0
132
I
UART channel 0 Receive Data or infrared receive data. Normal RXD input
idles HIGH. The infrared pulses typically idle LOW but can be inverted inter-
nally prior the decoder by FCTR[4].
RTS0#
127
O
UART channel 0 Request to Send or general purpose output (active low).
CTS0#
131
I
UART channel 0 Clear to Send or general purpose input (active low).
DTR0#
126
O
UART channel 0 Data Terminal Ready or general purpose output (active low).
DSR0#
130
I
UART channel 0 Data Set Ready or general purpose input (active low).
CD0#
129
I
UART channel 0 Carrier Detect or general purpose input (active low).
相關(guān)PDF資料
PDF描述
XR17D158 UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR17D158IV-F 功能描述:UART 接口集成電路 3.3V-5V 64B FIFO temp -45 to 85C;UART 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
XR17D158IVTR-F 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 5V 144-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR17D158IVTR-F
XR17L152 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART
XR17L152CM 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART
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