Rainbow-electronics ATmega103L Manuale Utente Scaricare il pdf (Pagina 73)

ATmega603/103

For details in the timing for the SRAM interface, please refer to Figure 78, Table 46, Table 47, Table 48, and Table 49 in

section “DC Characteristics” on page 105.

Figure 50. External SRAM connected to the AVR

Figure 51. External SRAM Access Cycle without wait states

D[7:0]

A[7:0]

A[15:8]

SRAM

Port A

ALE

Port C

AVR

System Clock Ø

ALE

Data / Address [7..0]

Address [15..8]

Address

T1 T2 T3

Prev. Address

Data

WriteRead

Address

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 125 126

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Rainbow-electronics ATmega103L Manuale Utente Pagina 73