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Rev. 0.5 133
C8051F340/1/2/3/4/5/6/7
Table 13.1. AC Parameters for External Memory Interface
Parameter Description Min* Max* Units
T
ACS
Address / Control Setup Time 0
3 x T
SYSCLK
ns
T
ACW
Address / Control Pulse Width
1 x T
SYSCLK
16 x T
SYSCLK
ns
T
ACH
Address / Control Hold Time 0
3 x T
SYSCLK
ns
T
ALEH
Address Latch Enable High Time
1 x T
SYSCLK
4 x T
SYSCLK
ns
T
ALEL
Address Latch Enable Low Time
1 x T
SYSCLK
4 x T
SYSCLK
ns
T
WDS
Write Data Setup Time
1 x T
SYSCLK
19 x T
SYSCLK
ns
T
WDH
Write Data Hold Time 0
3 x T
SYSCLK
ns
T
RDS
Read Data Setup Time 20 ns
T
RDH
Read Data Hold Time 0 ns
*Note: T
SYSCLK
is equal to one period of the device system clock (SYSCLK).