Keithley 224 - Page 36

A,
ADDRESS BUS
6606
6k ROM
2k RAM
IU109.
IUlOl. u102.
Ullll
U106. U1071
CRYSTAL
TIME BASE
IYlOll
c
r
CONTROL TO
ANALOG
CIRCUITRY
FRONT PANEL
DISPLAY AND
PUSHBUTTON
FOR DETAILED INFORMATION ON THE IEEE-488 INTERFACE REFER
TO THE 224 PROGRAMMING MANUAL
Figure 4-2. Digital Circuitry Block Diagram