M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 403

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Fig. 18.6.3 Memory expansion example on minimum model
18.6.2 Memory expansion example on minimum model
Figure 18.6.3 shows a memory expansion example on the minimum model (with external RAM) and Figure
18.6.4 shows the corresponding timing diagram. In this example, an Atmel company’s EPROM (AT27LV256R)
is used as the external ROM.
In Figure 18.6.3, the circuit condition is “No Wait.”
Vcc = 3.0–3.3 V
BYTE
M37702S1L
X
IN
A
D
0
X
0
–A
1, 2:
BHE
–D
R/W
OUT
A
15
14
E
8 MHz
7
3:
Use the elements of which propagation delay
time is within 30 ns.
Use the elements of which propagation delay
time is within 50 ns.
Open
AC04
AC04
2
3
AC32
7702/7703 Group User’s Manual
Circuit condition : no Wait
AC32
AT27LV256R-15DI
1
WR
RD
A
D
1
CE
0
0
–A
–D
OE
14
7
LOW VOLTAGE VERSION
M5M5256CFP-10VLL
A
DQ
S
0
OE
–A
1
–DQ
14
W
8
FFFF
0000
0080
8000
0280
16
16
16
16
16
18.6 Application
(M5M5256CFP)
(AT27LV256R)
Memory map
Internal RAM
RAM area
ROM area
SFR area
External
External
area
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