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M32000D4BFP-80 Datasheet(Fiches technique) 42 Page - Mitsubishi Electric Semiconductor

Numéro de pièce M32000D4BFP-80
Description  SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER   
Télécharger  44 Pages
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Fabricant  MITSUBISHI [Mitsubishi Electric Semiconductor]
Site Internet  http://www.mitsubishichips.com
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SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
M32000D4BFP-80
42
Fig. 42 External bus master read/write timing
CLKIN
(input)
(input)
0.5 VCC
(input)
(output)
D0 to D15
D0 to D15
(input)
th(CLKINL-D)
HREQ
R/W
40
52
53
54
55
(output)
tsu(HREQ-CLKIN)
HACK
41
43 td(CLKIN-HACKL)
45
(input)
CS
48 tsu(CS-CLKIN)
49 th(CLKIN-CS)
td(CLKIN-DV)
td(CLKIN-DZX)
50 tsu(A-CLKIN)
51 th(CLKIN-A)
(output)
DC
60 td(CLKIN-DCL)
59 td(CLKIN-DCHX)
42 td(CLKIN-HACKHX)
44
58 td(CS-DCZX)
td(CLKIN-HACKH)
td(CLKIN-HACKLX)
th(CLKIN-HREQ)
50
51
(input)
A8 to A30
BCH, BCL
50
51
50
51
48
49
tsu(D-CLKINL)
48
49
td(CLKIN-DXZ)
td(CLKIN-DVX)
56
57
td(CLKIN-DCLX)
td(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.
• minimum value of tsu(CS-CLKIN) = (value in table) + (correction value) = 5 + (50 x 5/100) = 7.5 [ns]
• minimum value of th(CLKIN-CS) = (value in table) + (correction value) = 2 + (50 x 5/100) = 4.5 [ns]
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
*1
[example]
CS signal transition ("L" –> "H") when inputting 20 MHz clock whose duty ratio is 45 - 55% (
± 5%) to CLKIN:




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