320
Digital Electronics
B1
A0
A1
B0
O/P-1
O/P-2
O/P-3
O/P-4
Figure 9.17 Programmed PLA device (example 9.3).
9.5.2 PAL Numbering System
The standard PAL numbering system uses an alphanumeric designation comprising a two-digit number
indicating the number of inputs followed by a letter that tells about the architecture/type of logic output.
Table 9.3 gives an interpretation of different letter designations in use. Another number following the
Digital Electronics
B1
A0
A1
B0
O/P-1
O/P-2
O/P-3
O/P-4
Figure 9.17 Programmed PLA device (example 9.3).
9.5.2 PAL Numbering System
The standard PAL numbering system uses an alphanumeric designation comprising a two-digit number
indicating the number of inputs followed by a letter that tells about the architecture/type of logic output.
Table 9.3 gives an interpretation of different letter designations in use. Another number following the