参数资料
型号: MC68CK338CPV14B1
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 14.4 MHz, MICROCONTROLLER, PQFP144
封装: PLASTIC, TQFP-144
文件页数: 20/133页
文件大小: 944K
代理商: MC68CK338CPV14B1
MOTOROLA
MC68CK338
116
MC68CK338TS/D
Table 71 AC Timing
(V
DD
and V
DDSYN
= 2.7 to 3.6 Vdc, V
SS
= 0 Vdc, T
A
= T
L
to T
H)
1
Num
Characteristic
Symbol
Min
Max
Unit
F1
Frequency of Operation
f
0
14.4
MHz
1
Clock Period
tcyc
69.4
ns
1A
ECLK Period
tEcyc
555
ns
1B
External Clock Input Period2
tXcyc
69.4
ns
2, 3
Clock Pulse Width
tCW
24.7
ns
2A, 3A
ECLK Pulse Width
tECW
277.5
ns
2B, 3B
External Clock Input High/Low Time2
tXCHL
34.7
ns
4, 5
CLKOUT Rise and Fall Time
tCrf
—10
ns
4A, 5A
Rise and Fall Time — All Outputs Except CLKOUT
trf
—10
ns
6
Clock High to ADDR, FC, SIZE, RMC Valid
tCHAV
035
ns
7
Clock High to ADDR, DATA, FC, SIZE, RMC High Impedance
tCHAZx
069
ns
8
Clock High to ADDR, FC, SIZE, RMC Invalid
tCHAZn
0—
ns
9
Clock Low to AS, DS, CS Asserted
tCLSA
225
ns
9A
AS to DS or CS Asserted (Read)3
tSTSA
–15
15
ns
9C
Clock Low to IFETCH, IPIPE Asserted
tCLIA
231
ns
11
ADDR, FC, SIZE, RMC Valid to AS, CS, (and DS Read) Asserted
tAVSA
15
ns
12
Clock Low to AS, DS, CS Negated
tCLSN
235
ns
12A
Clock Low to IFETCH, IPIPE Negated
tCLIN
231
ns
13
AS, DS, CS Negated to ADDR, FC SIZE Invalid (Address Hold)
tSNAI
19
ns
14
AS, CS (and DS Read) Width Asserted
tSWA
138
ns
14A
DS, CS Width Asserted (Write)
tSWAW
44
ns
14B
AS, CS (and DS Read) Width Asserted (Fast Cycle)
tSWDW
44
ns
15
AS, DS, CS Width Negated4
tSN
44
ns
16
Clock High to AS, DS, R/W High Impedance
tCHSZ
—69
ns
17
AS, DS, CS Negated to R/W High
tSNRN
19
ns
18
Clock High to R/W High
tCHRH
035
ns
20
Clock High to R/W Low
tCHRL
035
ns
21
R/W High to AS, CS Asserted
tRAAA
19
ns
22
R/W Low to DS, CS Asserted (Write)
tRASA
80
ns
23
Clock High to Data Out Valid
tCHDO
—35
ns
24
Data Out Valid to Negating Edge of AS, CS (Fast Write Cycle)
tDVASN
19
ns
25
DS, CS Negated to Data Out Invalid (Data Out Hold)
tSNDOI
19
ns
26
Data Out Valid to DS, CS Asserted (Write)
tDVSA
19
ns
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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