9 
 
 
Table 2: Memory Summary For Model 
N6781A, N6782A, N6784A, N6785A, N6786A  
 
 
 
Memory Type and 
Size 
Writable During Normal 
Operation?
 
Data Retained When 
Powered Off?
 
 
 
Purpose/ Contents 
 
 
Data Input 
Method 
 
 
Location in 
Instrument and 
Remarks 
 
 
Sanitization 
Procedure 
 
EEPROM
Note 1
 
16K-bit 
 
No 
 
Yes 
 
Used to store, 
Model Number 
Serial Number 
Calibration data 
Calibration Date 
Programmed 
before installed 
and by Firmware 
operations (cal 
routines) 
 
 
Main PCA 
 
 
See Table 4
 
and 
See Table 5 
 
FPGA 
1.4MB 
No 
No 
measurement and control 
infrastructure 
During power up 
in Mainframe 
DPM 
Power Cycle  
32M-bit  
SPI Flash 
No 
No 
Memory not used for 
module when installed in 
mainframe 
in module when 
installed in 
mainframe 
DPM 
Power Cycle 
Notes 
1.  When module is used in Mainframes N6700B, N6701A, N6702A, N6705B Module EEPROM also stores saved 
states 
See Table 6 on how to clear in these mainframes.