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M16C62_M Datasheet, PDF (207/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES | |||
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Timing (Vcc = 5V)
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Memory Expansion Mode and Microprocessor Mode
VCC = 5V
(When accessing external memory area with wait, and select multiplexed bus)
Read timing
BCLK
CSi
ADi
/DBi
ADi
BHE
ALE
td(BCLKâCS)
tcyc
25ns.max
td(ADâALE)
(tcyc/2-25)ns.min
Address
tdz(RDâAD)
8ns.max
td(BCLKâAD)
25ns.max
th(ALEâAD)
30ns.min
tac3(RDâDB)
td(ADâRD)
0ns.min
td(BCLKâALE)
25ns.max
th(BCLKâALE)
â4ns.min
td(BCLKâRD)
25ns.max
RD
th(RDâCS)
(tcyc/2)ns.min
th(BCLKâCS)
4ns.min
Data input
th(RDâDB)
tSU(DBâRD) 0ns.min
40ns.min
Address
th(BCLKâAD)
4ns.min
th(RDâAD)
(tcyc/2)ns.min
th(BCLKâRD)
0ns.min
Write timing
BCLK
CSi
td(BCLKâCS)
25ns.max
ADi
/DBi
ADi
BHE
ALE
Address
td(ADâALE)
(tcyc/2â25)ns.min
td(BCLKâAD)
25ns.max
td(BCLKâALE)
25ns.max
th(BCLKâALE)
â4ns.min
WR,WRL,
WRH
tcyc
td(BCLKâDB)
40ns.max
th(WRâCS)
(tcyc/2)ns.min
Data output
th(BCLKâCS)
4ns.min
th(BCLKâDB)
4ns.min
Address
td(DBâWR)
(tcyc*3/2â40)ns.min
th(WRâDB)
(tcyc/2)ns.min
th(BCLKâAD)
4ns.min
td(ADâWR)
0ns.min
td(BCLKâWR)
25ns.max
th(WRâAD)
(tcyc/2)ns.min
th(BCLKâWR)
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 1.23.6. VCC = 5V timing diagram (5)
1-188
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