參數(shù)資料
型號(hào): M32000D4AFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE CHIP 32 BIT CMOS MICROCOMPUTER
中文描述: 單芯片32位CMOS微機(jī)
文件頁(yè)數(shù): 42/45頁(yè)
文件大?。?/td> 535K
代理商: M32000D4AFP
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
M32000D4AFP
42
Fig. 42 External bus master read/write timing
CLKIN
(input)
(input)
(input)
0.5 VCC
(input)
(output)
D0 to D15
D0 to D15
t
h(CLKINL-D)
HREQ
R/W
40
52
53
54
55
(output)
t
su(HREQ-CLKIN)
HACK
41
43
t
d(CLKIN-HACKL)
45
(input)
CS
48
t
su(CS-CLKIN)
49
t
h(CLKIN-CS)
t
d(CLKIN-DV)
t
d(CLKIN-DZX)
50
t
su(A-CLKIN)
51
t
h(CLKIN-A)
(output)
DC
60
t
d(CLKIN-DCL)
58
t
d(CS-DCZX)
59
t
d(CLKIN-DCHX)
42
t
d(CLKIN-HACKHX)
44
t
d(CLKIN-HACKH)
t
d(CLKIN-HACKLX)
t
h(CLKIN-HREQ)
50
51
(input)
A8 to A30
BCH, BCL
50
51
50
51
48
49
t
su(D-CLKINL)
48
49
t
d(CLKIN-DXZ)
t
d(CLKIN-DVX)
56
57
t
d(CLKIN-DCLX)
t
d(CLKIN-DCXZ)
58
60
59
62
61
62
61
*1 All switching characteristics and timing requirements based on the falling edge of CLKIN are calculated according to
the internal CLKIN (duty ratio is 50%) . When designing external peripheral circuits, the correction for the duty cycle of
the actual CLKIN is necessary.
[example]
CS signal transition ("L" –> "H") when inputting 16.65 MHz clock whose duty ratio is 45 - 55% (
±
5%) to CLKIN:
minimum value of tsu(CS-CLKIN) = (value in table) + (correction value) = 10 + (60 x 5/100) = 13 [ns]
minimum value of th(CLKIN-CS) = (value in table) + (correction value) = 2 + (60 x 5/100) = 5 [ns]
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
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