Renesas 7700 FAMILY User Manual page 393

APPLICATIONS
17.1 Memory expansion
M37751
BYTE
A
14
CNV
SS
A –A
0 13
D –D
0 7
BHE
E
R/W
X X
IN OUT
40 MHz
Fig. 17.1.23 Example of SRAM expansion (minimum model at high-speed running)
17–28
M5M5256CP-70LL
1
AC32
S
A –A
0
A
14
D –D
0
OE
Open
2
AC32
Circuit condition : 5 access in high-speed running
7751 Group User's Manual
1, 2: Use the elements of which propagation
delay time is within 15 ns.
13
7
0000
16
WE
0080
16
0880
16
4000
16
FFFF
16
Memory map
SFR area
Internal RAM area
External RAM
area
(M5M5256CP)
Internal ROM area