MC68340AB16E Datasheet, PDF (420/441 Pages) Motorola, Inc – Integrated Processor with DMA User’s Manual

Freescale Semiconductor, Inc.
11.9 TIMER MODULE ELECTRICAL SPECIFICATIONS (See notes (a), (b), (c), and (d)
corresponding to part operation, GND = 0 Vdc, TA = 0 to 70°C; see Figures 11-13 and 11-14)
3.3 V
3.3 V or 5.0 V
5.0 V
8.39 MHz
16.78 MHz
25MHz
Num.
Characteristic
Symbol Min Max Min Max Min Max Unit
1 CLKOUT Period in Crystal Mode
2 Clock Rise and Fall Time
3 TIN/ TGATE High or Low Time, Minimum
Pulse Width
4¹ Asynchronous Input Setup Time to
CLKOUT Low
tcyc 119.2 — 59.6 —
40
— ns
trf
—
20
— 10
—
5 ns
— tcyc +40 — tcyc +20 — tcyc +12 — ns
—
15 — 8, 5 —
5
— ns
5 Asynchronous Input Hold Time from
CLKOUT Low
—
30
—
15
—
8
— ns
6 Asynchronous Input Setup Time to
CLKOUT High
—
10 —
5
—
3
— ns
7 Asynchronous Input Hold Time from
CLKOUT High
—
30
—
15
—
8
— ns
8 CLKOUT High to TOUT Valid
tTO
3
60
3
30
3
20 ns
NOTES:
(a) The electrical specifications in this document for both the 8.39 and 16.78 MHz @ 3.3 V ±0.3 V are preliminary
and apply only to the appropriate MC68340V low voltage part.
(b) The 16.78-MHz specifications apply to the MC68340 @ 5.0 V ±5% operation.
(c) The 25.16 MHz @ 5.0 V ±5% electrical specifications are preliminary.
(d) For extended temperature parts T _A = –40 to +85°C. These specifications are preliminary.
1. Specification #4 for 16.78 MHz @ 3.3 V ±0.3 V will be 8 ns.
CLKOUT
TIN
TGATE
1
2
2
3
3
Figure 11-13. Timer Module Clock Signal Timing Diagram
11-20
MC68340 USER’S MANUAL
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