Typewriter User Manual

MOTOROLA MC68340 USER’S MANUAL 11-9
11.7 AC TIMING SPECIFICATIONS (Continued)
3.3 V
3.3 V or
5.0 V 5.0 V
8.39 MHz 16.78 MHz 25.16 MHz
Num. Characteristic Symbol Min Max Min Max Min Max Unit
30
4
CLKOUT Low to Data-In Invalid (Fast
Termination Hold)
t
CLDI
30 — 15 — 10 — ns
30A
4
CLKOUT Low to Data-In High Impendance t
CLDH
— 180 — 90 — 60 ns
31
5
DSACK≈ Asserted to Data-In Valid t
DADI
— 100 — 50 — 32 ns
31A DSACK≈ Asserted to DSACK≈ Valid (Skew) t
DADV
— 60 — 30 — 20 ns
32 HALT and RESET Input Transition Time t
HRrf
— 400 — 200 — 140 ns
33 CLKOUT Low to BG Asserted t
CLBA
— 60 — 30 — 20 ns
34 CLKOUT Low to BG Negated t
CLBN
— 60 — 30 — 20 ns
35
6
BR Asserted to BG Asserted (RMC Not
Asserted)
t
BRAGA
1 — 1 — 1 — CLKOUT
37 BGACK Asserted to BG Negated t
GAGN
1 2.5 1 2.5 1 2.5 CLKOUT
39 BG Width Negated t
GH
2—2—2—CLKOUT
39A BG Width Asserted t
GA
1—1—1—CLKOUT
46 R/W Width Asserted (Write or Read) t
RWA
300 — 150 — 100 — ns
46A R/ W Width Asserted (Fast Termination Write or
Read)
t
RWAS
180 — 90 — 60 — ns
47A
8
Asynchronous Input Setup Time t
AIST
15 — 8, 5 — 5 — ns
47B Asynchronous Input Hold Time t
AIHT
30 — 15 — 10 — ns
48
5,7
DSACK≈ Asserted to BERR, HALT Asserted t
DABA
— 60 — 30 — 20 ns
53 Data-Out Hold from CLKOUT High t
DOCH
0—0—0— ns
54 CLKOUT High to Data-Out High Impedance t
CHDH
— 60 — 30 — 20 ns
55 R/W Asserted to Data Bus Impedance Change t
RADC
80 — 40 — 25 — ns
56 RESET Pulse Width (Reset Instruction) t
HRPW
512 — 512 — 512 — CLKOUT
56A RESET Pulse Width (Input from External
Device)
t
RPWI
590 — 590 — 590 — CLKOUT
57 BERR Negated to HALT Negated (Rerun) t
BNHN
0—0—0— ns
70 CLKOUT Low to Data Bus Driven (Show Cycle) t
SCLDD
0 60 0 30 0 20 ns
71 Data Setup Time to CLKOUT Low (Show
Cycle)
t
SCLDS
30 — 15 — 10 — ns
72 Data Hold from CLKOUT Low (Show Cycle) t
SCLDH
20—10—6— ns
80 DSI Input Setup Time t
DSISU
30 — 15 — 10 — ns
81 DSI Input Hold Time t
DSIH
20—10—6— ns
82 DSCLK Setup Time t
DSCSU
30 — 15 — 10 — ns
83 DSCLK Hold Time t
DSCH
20—10—6— ns
84 DSO Delay Time t
DSOD
— t
cyc
+ 50
— t
cyc
+ 25
— t
cyc
+ 16
ns
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
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