Typewriter User Manual

11-20 MC68340 USER’S MANUAL MOTOROLA
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 t
cyc
119.2 — 59.6 — 40 — ns
2 Clock Rise and Fall Time t
rf
—20—10— 5ns
3TIN/TGATE High or Low Time, Minimum
Pulse Width
— t
cyc
+40 — t
cyc
+20 — t
cyc
+12 — ns
4
1
Asynchronous Input Setup Time to
CLKOUT Low
— 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 t
TO
360330320ns
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.
TGATE
TIN
CLKOUT
2
3
2
3
1
Figure 11-13. Timer Module Clock Signal Timing Diagram
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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