M32C/83 Group (M32C/83, M32C/83T)
Vcc=3.3V
Memory Expansion Mode and Microprocessor Mode
Refresh Timing (CAS-before-RAS refresh)
BCLK
tcyc
td(BCLK-RAS)
18ns.max
RAS
th(BCLK-RAS)
0ns.min
tsu(CAS-RAS)(1)
CASL
CASH
td(BCLK-CAS)
18ns.max
th(BCLK-CAS)
0ns.min
DW
NOTES:
1. Varies with operation frequency.
su(CAS-RAS)=(tcyc/2-13)ns.min
t
Refresh Timing (Self-refresh)
BCLK
tcyc
td(BCLK-RAS)
18ns.max
RAS
th(BCLK-RAS)
0ns.min
tsu(CAS-RAS)(1)
CASL
CASH
th(BCLK-CAS)
0ns.min
td(BCLK-CAS)
18ns.max
DW
NOTES:
1. Varies with operation frequency.
su(CAS-RAS)=(tcyc/2-13)ns.min
t
Measurement Conditions:
• VCC=3.0 to 3.6V
• Input high and low voltage: VIH=1.5V, VIL=0.5V
• Output high and low voltage: VOH=1.5V, VOL=1.5V
Figure 5.15 VCC=3.3V Timing Diagram (6)
Page 78
Rev. 1.41 Jan.31, 2006
REJ03B0013-0141
of 91
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