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7733 Fiches technique(PDF) 419 Page - Renesas Technology Corp

No de pièce 7733
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  940 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7733 Fiches technique(HTML) 419 Page - Renesas Technology Corp

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APPLICATIONS
7733 Group User’s Manual
17–12
Fig. 17.1.7 Ready generating circuit example (with wait 1)
17.1 Memory expansion
Wait generated by the ready
function is inserted only to
an area where accessed
by signal CS2.
M37733MHBXXXFP
CS1
A8 to A23
(D0 to D15)
A0 to A7
1D
1T
1Q
1
RDY
E
F32
F32
Address bus
Data bus
Address
latch
circuit
Address
decode
circuit
CS2
2D
2T
2Q
RD
F04
F04
F74
g1
g2
g3
1
E
CS2
1Q
RDY
th( 1-RDY)
2Q
: Wait generated by the ready function
: Software wait
tsu(RDY- 1)
1
g1 to g3
Make sure that the sum of
propagation delay time is within
(when 2 • f(f2) = 25 MHz, 25 ns).
2 ! 10
2 • f(f2)
– tsu(RDY– 1)
9
Circuit conditions: f (XIN)
≤ 25 MHz, wait 1 is valid,
1
=
2
,
f(XIN)
8
,
f(XIN)
16
,
f(XIN)
2
f(XCIN)
or



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