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M16C65_15 Datasheet, PDF (107/115 Pages) Renesas Technology Corp – RENESAS MCU | |||
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M16C/65 Group
5. Electrical Characteristics
Memory Expansion Mode, Microprocessor Mode
(in wait state setting 2 Ï + 3 Ï, 2 Ï + 4 Ï, 3Ï + 4 Ï, and 4 Ï + 5 Ï, and
when accessing external area)
Read timing
t cyc
VCC1 = VCC2 = 3V
BCLK
CSi
ADi
BHE
ALE
td(BCLK-CS)
30ns(max.)
td(BCLK-AD)
30ns(max.)
td(BCLK-ALE)
25ns(max.)
th(BCLK-ALE)
-4ns(min.)
RD
DBi
Hi-Z
Write timing
tcyc
td(BCLK-RD)
30ns(max.)
tac4(RD-DB)
(n à tcyc-60)ns(max.)
tsu(DB-RD)
50ns(min.)
th(BCLK-CS)
0ns(min.)
th(BCLK-AD)
0ns(min.)
th(RD-AD)
0ns(min.)
th(BCLK-RD)
0ns(min.)
th(RD-DB)
0ns(min.)
BCLK
td(BCLK-CS)
30ns(max.)
CSi
ADi
BHE
ALE
td(BCLK-AD)
30ns(max.)
td(BCLK-ALE)
25ns(max.)
th(BCLK-ALE)
-4ns(min.)
WR, WRL
WRH
DBi
Hi-Z
td(BCLK-WR)
30ns(max.)
td(BCLK-DB)
40ns(max.)
th(BCLK-CS)
0ns(min.)
th(BCLK-AD)
0ns(min.)
th(WR-AD)
(0.5 Ã tcyc -10)ns(min.)
th(BCLK-WR)
0ns(min.)
th(BCLK-DB)
0ns(min.)
1
tcyc =
f(BCLK)
Measuring conditions
y VCC1 = VCC2 = 3V
y Input timing voltage: VIL = 0.6 V, VIH = 2.4 V
y Output timing voltage: VOL = 1.5 V, VOH = 1.5 V
td(DB-WR)
{(n-0.5) Ã tcyc -40}ns(min.)
th(WR-DB)
(0.5 Ã tcyc -10)ns(min.)
n: 3 (when 2 Ï + 3 Ï)
4 (when 2 Ï + 4 Ï or 3 Ï + 4 Ï)
5 (when 4 Ï + 5 Ï)
Figure 5.33 Timing Diagram
R01DS0031EJ0210 Rev.2.10
Jul 31, 2012
Page 107 of 111
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