249
Chapter 7 Plug-in Modules
44474A 16-Bit Digital I/O Module
4
7
44474A Simplified Schematic
A simplified schematic is shown below. Note that all 16 I/O lines and 4
control lines share a common Lo connection. The 16 bits (I/O lines) are
numbered as bits 0 through 15 when the module is addressed
individually. The bits 0-7 refer to the bits 0-7 of the LO BYTE, and the
bits 8-15 refer to the bits 0-7 of the HI BYTE.
CHAN CLOSE
D
PCTL/RD
IO/WR
TERMINAL
CONNECTION
BLOCK
PFLG/EXT. IN
C
TERMINAL
CONNECTION
BLOCK
+5V
47
+5V
47
+5V
10K
+5V
47V
OPEN COLLECTO
R
CURRENT SINK
(VMOS FET)
DRIVER OUTPU T
INPUT SENSE
REFERENCE
VOLTAGE
ONE I/O LINE
0.25A
TERMINAL
CONNECTION
BLOCK
10K
Summary of Contents for Agilent 3499A
Page 13: ...1 1 Quick Start ...
Page 27: ...2 2 Front Panel Operation ...
Page 55: ...3 3 System Overview ...
Page 77: ...4 4 Features and Functions ...
Page 113: ...5 5 Remote Interface Reference ...
Page 164: ...164 5 ...
Page 165: ...6 6 Error Messages ...
Page 173: ...7 7 Plug in Modules ...
Page 256: ...256 Chapter 7 Plug in Modules 44475A Breadboard Module 7 ...
Page 261: ...261 Chapter 7 Plug in Modules 44476B Microwave Switch Module 4 7 The 44476B is shown below ...
Page 286: ...286 Chapter 7 Plug in Modules Terminals and Connections Information 7 ...
Page 288: ...288 7 ...
Page 289: ...8 8 Application Programs ...
Page 299: ...9 9 Specifications ...
Page 343: ...343 Chapter 9 Specifications 44475A Breadboard Module 4 9 ...