IDT72511/IDT72521
BIDIRECTIONAL FIRST-IN FIRST-OUT MEMORY
MILITARY AND COMMERCIAL TEMPERATURE RANGES
R/WA
DSA
Opcode
DA8 - DA12
or
Operand
DA0 - DA12
WRITE
R/WA
DSA
taS
Input
DA0 - DA17
READ
R/WA
DSA
taS
Output
DA0 - DA17
tWPW
tWRCOM
ta DS
taDH
Figure 11. Port A Command Timing (write).
taWC
ta WPW
ta RR
taH
ta DS
taDH
2668 drw 12
taRC
taRPW
ta RR
ta LZ
taA
ta DV
ta HZ
taH
2668 drw 13
Figure 12. Read and Write Timing for Port A
5.32
19