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AC ELECTRICAL SPECIFICATIONS -- READ AND WRITE CYCLES•
(Vcc.= 5.0 Vdc -+5%; GND=0 Vdc; 40 MHz-TA =0 ° to 70°C, 50 MHz-TA =0°.C to TC =80°C)
(see..Figures.3-8)
Num." Characteristic
6 C!ock'Hig h to Function Code,
Size, RMC, IPEND,
CLOUT, Address Valid
6A Clock,High to EC~, OCS ' , 0 15 0 i5 0 12 0 10 0 10 ns
• Asserted I
6B ' Functioni~ode,'Size, RMC,' 4 -- 3 -- 3 -- 'I 3 -- 3 -- ns
IPEND, CLOUT Address
Valid to Negating Edge of ECS
7 Clock High to Function Code, O 50 O " 40 O 30 0 25 0 20 ns
Size, RMC, CLOUT,
Address Data High
Impedance
.8 Clock High to Fu'nction Code, O -- 0 -- O -- 0 -- 0 -- . ns
Size, RMC, IPEND,
CLOUT, Address Invaiid
9 Clock Low to AS, D'S Asserted,
CBREQ Valid
9A 1 AS toDS Assertion Skew (Read)
9B! 4 AT Asserted to D~ Asserted
(Wri.te)
10 ECS Width Asserted
"10A OCS Width Asserted
1087 ECS, OCS Width Negated
11 Function Code, Size, RMC,
CLOUT, Address Valid to
Asserting Edge of AS
Asserted (arid DS Asserted,
Read)
12 Clock Low to AS, DS, CeREQ' 'O 20 O 18 ' O 10 "O .... 10" O 10' " ns
Negated
12A Clock Low to ECS/OCS Negated ..... 0 20
13, AS, DS Negated to Function 1O -- 7 -- 5 :-- 3 -- ~ 3 -- ns
Code, Size, RMC, CLOUT,
Address Invalid .............
14 AS (and DS Read) Width 85 -- 70 -- 45, --' 30 -- 25 -- ns
' Asserted (Asynchronou's .....
Cycle)
~4A 11 D~ Width Asse'rted (Write) " '
14B " AS (and'DS, Read) Width'
.. Asserted (Synchronous
Cycle)
,15' AS, DSWidth Negated ' " 38 -- 30 -- 23 -- 18 ~ .13 -- .ns
_ .15A 8 ~ Negaied to AT Assertecl .. 30 -- 25 -- 18. -- 16 . . :1~'" -- ns
16 Clock High to AS, DS, R/W, -- 50 40 30 -- 25 I -- 20 ns
DBEN, CBREQ High Impedance
I
20MHz 25MHz .33.33MHz 40MHz 50MHz*
Unit
Min Max Min Max Min Max Min Max Min Max • -
I, 0 25 0 20 0 14 O 14 0 14 ns
3 20 3 18 2 10 2 10 2 10 .ns
-10 10" -10 10 -8 8 :6 6 -6 6 ns
32 -- 27 -- 22 -- 16 -- 14 --. ns
15 -- 10 -- 8 -- 5 " -- 4 -- ns
15 -- 10 -- 8 " -- 5 -- 4 -- ns
10 -- 5 -- 5 -- 5 -- 4 -- ns
IO -- 7 -- 5. -- 5" -- 3 -- ns
O 18 0 15 0 12 ' 0 11 ns'
38 " ~ 30 -- 23" -- 18 m - 13 7 ns
35 -- 30 -- 23 '-- "18 -- 13 -- ns
6 MC68030 ELECTRICAL!SPECIF.ICATIONS MOTOROLA