QUADPORT 16654 Data Sheet
Quad High Speed RS232E Ports
ST16C654 UART (64 Byte Buffer)
Software Configuration
Full 16 Bit I/O Addressing (64K)
I/O Address Range 0x0100..0xFFF8
IRQ 3, 4, 5, 7, 9, 10, 11, 12, 15
Quadplex DB9M or DB25M Cable
Designed and Assembled in Canada

 

Advanced Features

 • QUAD SERIAL PORTS using Startech 16554 / 16654 UARTs
 • RS232E SERIAL PORTS (Full 9 / 25 Wire Implementation)
 • Software Configurable Hardware
 • 16 Bit ISA/EISA Bus compatible
 • FCC Class B / CE Tested and Approved

Specifications
Number of Serial Ports : 4
Port Compatibility
 • Startech Semiconductor 16554 - 16 Byte Buffer (Standard)
 • Startech Semiconductor 16654 - 64 Byte Buffer (OPTIONAL)
Electrical Interface
RS232E
Cable
 • Double Shielded Single QUADPLEX DB37Male to DB9M Cable (Standard)
 • Double Shielded Single QUADPLEX DB37Male to DB25M Cable (OPTIONAL)
Max speed of Serial Ports

 • 115K Baud (Default)
 • 460K Baud (Requires crystal change)

I/O Addresses Supported
0x0100 to 0xFFF8 (8 byte boundary) (Software Configurable)
Interrupts Supported
3, 4, 5, 6, 7, 9, 10, 11, 12, 15 (Software Configurable)
Relocatable Interrupt Pending Register
0x0100 to 0xFFF8 (8 byte boundary)
Interrupts Modes
Unique, Shared (ANY COMBINATION)
Available Configurations
Model Soft I/O QUADPORT 16550
 • Quad High Speed 16550 Serial Ports (16 Byte Buffer)
 • Quadplex DB37 Male to DB9 Male cable (DB25 Male cable optional)

Model Soft I/O QUADPORT 16650 (OPTIONAL)
 • Quad High Speed 16650 Serial Ports (64 Byte Buffer)
 • Quadplex DB37 Male to DB9 Male cable (DB25 Male cable optional)

3 YEAR WARRANTY ON ALL CARDS
Call us at 1-800-361-1913 to order yours now!

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