19
0886C–HIREL–04/08
e2v semiconductors SAS 2008
TS68EN360
7.7 Bus Operation AC Timing Specifications
Table 7-6. GND = 0 VDC, TC = -55 to +125°C. The electrical specifications in this document are preliminary
(See Figure 7-3 to Figure 7-19)
Number Characteristic Symbol
25 MHz 33.34 MHz
UnitMin Max Min Max
6 CLKO1 High to Address, FC, SIZ, RMC Valid tCHAV 0 15 0 12 ns
6A CLKO1 High to Address Valid (GAMX = 1) tCHAV 0 20 0 15 ns
7CLKO1 High to Address, Data, FC, SIZ, RMC High
Impedance tCHAZx 0 40 0 30 ns
8CLKO1 High to Address, Data, FC, SIZ, RMC
Invalid tCHAZn -2 – -2 – ns
9CLKO1 Low to AS, DS, OE, WE, IFETCH, IPIPE,
IACKx Asserted tCLSA 3 20 3 15 ns
9(10) CLKO1 Low to CSx/RASx Asserted tCLSA 4 16 4 12 ns
9B(11) CLKO1 High to CSx/RASx Asserted tCHCA 4 16 4 12 ns
9A(2)(10) AS to DS or CSx/RASx or OE Asserted (Read) tSTSA -6 6 -5.625 5.625 ns
9C(2)(11) AS to CSx/RASx Asserted tSTCA 14 26 9 21 ns
11(10) Address, FC, SIZ, RMC, valid to AS, CSx/RASx,
OE, WE, (and DS Read) Asserted tAVSA 10 – 8 – ns
11A(11) Address, FC, SIZ, RMC, Valid to CSx/RASx
Asserted tAVCA 30 – 22.5 – ns
12 CLKO1 Low to AS, DS, OE, WE, IFETCH, IPIPE,
IACKx Negated tCLSN 3 20 3 15 ns
12(16) CLKO1 Low to CSx/RASx Negated tCLSN 4 16 4 12 ns
12A(13)(16) CLKO1 High to CSx/RASx Negated tCHCN 4 16 4 12 ns
12B CS negate to WE negate (CSNTQ = 1) e2vTW 15 – 12 – ns
13(12) AS, DS, CSx, OE, WE, IACKx Negated to Address,
FC, SIZ Invalid (Address Hold) tSNAI 10 – 7.5 – ns
13A(13) CSx Negated to Address, FC, SIZ, Invalid (Address
Hold) tCNAI 30 – 22.5 – ns
14(10)(12) AS, CSx, OE, WE (and DS Read) Width Asserted tSWA 75 – 56.25 – ns
14C(11)(13) CSx Width Asserted tCWA 35 – 26.25 – ns
14A DS Width Asserted (Write) tSWAW 35 – 26.25 – ns
14B AS, CSx, OE, WE, IACKx, (and DS Read) Width
Asserted (Fast Termination Cycle) tSWDW 35 – 26.25 – ns
14D(13) CSx Width Asserted (Fast Termination Cycle) tCWDW 15 – 10 – ns
15(3)(10)(12) AS, DS, CSx, OE, WE Width Negated tSN 35 – 26.25 – ns
16 CLKO1 High to AS, DS, R/W High Impedance tCHSZ – 40 – 30 ns
17(12) AS, DS, CSx, WE Negated to R/W High tSNRN 10 – 7.5 – ns
17A(13) CSx Negated to R/W High tCNRN 30 – 22.5 – ns