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M32C82_15 Datasheet, PDF (78/84 Pages) Renesas Technology Corp – SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
M32C/82 Group
5. Electrical Characteristics (VCC = 3.3V)
Memory expansion mode and microprocessor mode Vcc=3.3V
Refresh timing (CAS-before-RAS refresh)
BCLK
RAS
td(BCLK-RAS)
18ns.max
tsu(CAS-RAS)(1)
CASL
CASH
td(BCLK-CAS)
18ns.max
DW
NOTES:
1. It varies with the operation frequency.
tsu(CAS-RAS)=(tcyc/2-13)ns.min
tcyc
th(BCLK-RAS)
0ns.min
th(BCLK-CAS)
0ns.min
Refresh timing (Self-refresh)
BCLK
RAS
td(BCLK-RAS)
18ns.max
tsu(CAS-RAS)(1)
CASL
CASH
td(BCLK-CAS)
18ns.max
DW
NOTES:
1. It varies with the operation frequency.
tsu(CAS-RAS)=(tcyc/2-13)ns.min
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
tcyc
th(BCLK-RAS)
0ns.min
th(BCLK-CAS)
0ns.min
Figure 5.15 VCC=3.3V Timing Diagram (6)
Rev.1.20 Jun. 01, 2004 page 76 of 80