XR17D158CV-F Exar Corporation, XR17D158CV-F Datasheet - Page 9

• Manufacturer Part Number: XR17D158CV-F
• Description: IC UART PCI BUS OCTAL 144LQFP
• Manufacturer: Exar Corporation
• Type: IrDA or RS- 485r

Specifications of XR17D158CV-F

• Number Of Channels: 8
• Package / Case: 144-LQFP
• Features: *
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 3.3V, 5V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Data Rate: 6.25 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current: 5 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• No. Of Channels: 8
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 3V To 5.5V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 144
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1291

xr
REV. 1.2.2
The XR17D158 is designed to operate with VCC (voltage to the UART Core Logic) at 5V only, irrespective of
whether the PCI bus is at 3.3V or 5V.
Voltage, VIO that can be used for the device..
A typical application for a universal add-in card (VCC must be 5V) is shown in
system, the designer must still choose 5V power supply for the VCC regardless of VIO (3.3 or 5V). In
Figure
F
1.0 APPLICATION EXAMPLES
IGURE
4, examples 1 and 2 show valid applications of the XR17D158 in an embedded system.
3. T
YPICAL
(up to 33.34 M Hz)
(3.3V or 5V)
A
VIO
PPLICATION FOR A
T
CLK
ABLE
1: V
ALID
VCC
5.0V
5.0V
3.3V
3.3V
C
Interface
Table 1
OMBINATIONS OF
Local
U
PCI
Bus
NIVERSAL
5.0V
3.3V
5.0V
3.3V
VIO
below shows the valid combinations of VCC and the PCI Bus
A
DD
M ax Crystal Frequency = 24M Hz
9
-
M ax External Clock = 50M Hz
UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART
VCC
IN
UART Core Logic
C
UART Channel 0
UART Channel 1
UART Channel 2
UART Channel 3
UART Channel 4
UART Channel 5
ARD
UART Channel 6
UART Channel 7
AND
Invalid
Invalid
Valid
Valid
VIO S
UPPLY
V
OLTAGES
Figure
VCC = 5V
3. In an embedded
XR17D158