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MC68HC16Z1 Datasheet, PDF (309/500 Pages) Freescale Semiconductor, Inc – M68HC16Z Series
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Freescale Semiconductor, Inc.
Table A-18 25.17-MHz AC Timing
(VDD and VDDSYN = 5.0 Vdc ± 5%, VSS = 0 Vdc, TA = TL to TH)1
Num
Characteristic
Symbol Min
F1 Frequency of Operation
f
—
1 Clock Period
tcyc
39.7
1A ECLK Period
1B External Clock Input Period2
2, 3 Clock Pulse Width3
tEcyc
tXcyc
tCW
318
39.7
15
2A, 3A ECLK Pulse Width
2B, 3B External Clock Input High/Low Time2
tECW
tXCHL
155
19.8
4, 5 CLKOUT Rise and Fall Time
tCrf
—
4A, 5A Rise and Fall Time (All Outputs except CLKOUT)
4B, 5B External Clock Input Rise and Fall Time3
6 Clock High to ADDR, FC, SIZ Valid4
trf
—
tXCrf
—
tCHAV
0
7 Clock High to ADDR, Data, FC, SIZ, High Impedance
tCHAZx
0
8 Clock High to ADDR, FC, SIZ, Invalid
9 Clock Low to AS, DS, CS Asserted4
9A AS to DS or CS Asserted (Read)5
tCHAZn
0
tCLSA
2
tSTSA
–10
11 ADDR, FC, SIZE Valid to AS, CS, (and DS Read) Asserted
tAVSA
8
12 Clock Low to AS, DS, CS Negated
tCLSN
2
13 AS, DS, CS Negated to ADDR, FC, SIZ Invalid (Address Hold) tSNAI
8
14 AS, CS (and DS Read) Width Asserted
tSWA
65
14A DS, CS Width Asserted (Write)
tSWAW
25
14B AS, CS (and DS Read) Width Asserted (Fast Cycle)
15 AS, DS, CS Width Negated6
tSWDW
22
tSN
22
16 Clock High to AS, DS, R/W High Impedance
tCHSZ
—
17 AS, DS, CS Negated to R/W High
tSNRN
10
18 Clock High to R/W High
tCHRH
0
20 Clock High to R/W Low
tCHRL
0
21 R/W High to AS, CS Asserted
tRAAA
10
22 R/W Low to DS, CS Asserted (Write)
tRASA
40
23 Clock High to Data Out Valid
tCHDO
—
24 Data Out Valid to Negating Edge of AS, CS (Fast Write Cycle) tDVASN
7
25 DS, CS Negated to Data Out Invalid (Data Out Hold)
tSNDOI
5
26 Data Out Valid to DS, CS Asserted (Write)
27 Data In Valid to Clock Low (Data Setup)4
tDVSA
8
tDICL
5
27A Late BERR, HALT Asserted to Clock Low (Setup Time)
tBELCL
10
28 AS, DS Negated to DSACK[1:0], BERR, HALT, AVEC Negated tSNDN
0
29 DS, CS Negated to Data In Invalid (Data In Hold)7
tSNDI
0
29A DS, CS Negated to Data In High Impedance7, 8
tSHDI
—
Max
25.166
—
—
—
—
—
—
5
8
4
19
39
—
19
15
—
19
—
—
—
—
—
39
—
19
19
—
—
19
—
—
—
—
—
50
—
45
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
M68HC16 Z SERIES
USER’S MANUAL
ELECTRICAL CHARACTERISTICS
For More Information On This Product,
Go to: www.freescale.com
A-25
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