MC68EC030FE40C Datasheet, PDF (26/36 Pages) Freescale Semiconductor, Inc – Second-Generation 32-Bit Enhanced Embedded Controller

Freescale Semiconductor, Inc.
AC ELECTRICAL SPECIFICATIONS — READ AND WRITE CYCLES
(Concluded)
Num.
Characterstics
44
45⁵
45A⁹
46
46A
47A
47B
48⁴
53
55
56
57
58¹⁰
59¹⁰
60¹³
61¹³
62
63
R/W Low to DBEN Asserted (Write)
DBEN Width Asserted
Asynchronous Read
Asynchronous Write
DBEN Width Asserted
Synchronous Read
Synchronous Write
R/W Width Asserted (Asynchronous Write or Read)
R/W Width Asserted (Synchronous Write or Read)
Asynchronous Input Setup Time to Clock Low
Asynchronous Input Hold Time from Clock Low
DSACKx Asserted to BERR, HALT Asserted
Data-Out Hold from Clock High
R/W Asserted to Data Bus Impedance Change
RESET Pulse Width (Reset Instruction)
BERR Negated to HALT Negated (Rerun)
BGACK Negated to Bus Driven
BG Negated to Bus Driven
Synchronous Input Valid to Clock High (Setup Time)
Clock High to Synchronous Input Invalid (Hold Time)
Clock Low to STATUS, REFILL Asserted
Clock Low to STATUS, REFILL Negated
25 MHz 40 MHz Unit
Min Max Min
7— 5
40 — 22
80 — 45
5— 5
40 — 22
100 — 50
60 — 30
2— 2
8— 6
— 25 —
3— 2
20 — 11
512 — 512
0— 0
1— 1
1— 1
2— 2
8— 6
0 20 0
0 20 0
Max
—
—
—
—
—
—
—
—
—
14
—
—
—
—
—
—
—
—
15
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Clks
ns
Clks
Clks
ns
ns
ns
ns
26
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MOTOROLA
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