Technical information
54
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(2)Timing Diagram in Memory Expansion Mode and Microprocessor Mode (a)
(3)Timing Diagram in Microprocessor Mode
tWL(φ)
tWH(φ)
tC(φ)
φ
td(φ-AH)
td(φ-AL)
td(φ-SYNC)
tv(φ-AH)
tv(φ-AL)
tv(φ-SYNC)
td(φ-WR)
tv(φ-WR)
tSU(ONW-φ)
th(φ-ONW)
tSU(DB-φ)
th(φ-DB)
td(φ-DB)
tv(φ-DB)
td(RESET- RESETOUT)
AD
15
–AD
8
AD
7
–AD
0
SYNC
RD,WR
ONW
DB
0
–DB
7
DB
0
–DB
7
RESET
φ
RESET
OUT
tv(φ- RESETOUT)
0.5 VCC
0.8 VCC
0.2 VCC
(At CPU reading)
(At CPU writing)
0.5 VCC
0.5 VCC
0.8 VCC
0.2 VCC
0.8 VCC
0.2 VCC
0.5 VCC
0.5 VCC
0.5 VCC
0.5 VCC
0.5 VCC
MITSUBISHI MICROCOMPUTERS
3806 Group