M16C Datasheet, PDF (209/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C / 6N Group
Electrical characteristics
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Memory Expansion Mode and Microprocessor Mode
(When accessing external memory area with wait)
Read timing
VCC = 5V
BCLK
CSi
ADi
BHE
ALE
RD
DB
td(BCLK–CS)
25ns.max
tcyc
td(BCLK–AD)
25ns.max
th(BCLK–CS)
4ns.min
th(RD–CS)
0ns.min
th(BCLK–AD)
4ns.min
td(BCLK–ALE) ^25ns.max
th(RD–AD)
0ns.min
th(BCLK–ALE)
–4ns.min
td(BCLK–RD)
25ns.max
th(BCLK–RD)
0ns.min
tac2(RD–DB)
Hi–Z
tSU(DB–RD)
40ns.min
th(RD–DB)
0ns.min
Write timing
BCLK
CSi
td(BCLK–CS)
25ns.max
tcyc
th(BCLK–CS)
4ns.min
th(WR–CS)
0ns.min
ADi
BHE
ALE
td(BCLK–AD)
25ns.max
td(BCLK–ALE)
25ns.max
WR, WRL,
WRH
DBi
th(BCLK–AD)
4ns.min
th(WR–AD)
0ns.min
td(BCLK–WR)
25ns.max
th(BCLK–ALE)
–4ns.min
th(BCLK–WR)
0ns.min
td(BCLK–DB)
40ns.max
th(BCLK–DB)
4ns.min
td(DB–WR)
(tcyc–40)ns.min
th(WR–DB)
0ns.min
Measuring conditions :
• VCC=5V
• Input timing voltage : Determined with: VIL=0.8V, VIH=2.5V
• Output timing voltage : Determined with: VOL=0.8V, VOH=2.0V
Figure 21-5. Vcc = 5V timing diagram
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