M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 352

• 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

APPLICATION
17.1 Memory expansion
Fig. 17.1.13 Example for using bus buffer (connecting with memory requiring a long hold time for
17–18
CNV
BYTE
1: Use the elements of which propagation delay time is within 30 ns.
2: Use the elements of which output enable time is 5 ns or more and output disable time is
X
M37702
IN
write)
16 MHz
SS
within 36 ns.
A
A
A
A
X
16
23
A
8
15
OUT
1
/D
/D
/D
–A
BHE
ALE
/D
R/W
8
0
7
A
–
7
–
15
E
1
0
AC04
1
1T
1D1Q
AC04
AC32
7702/7703 Group User’s Manual
2T
2D
1
AC74
LE
LE
AC573
AC573
2Q
D Q
D Q
OE
OE
ALS245A
ALS245A
DIR
DIR
A
A
OC
Circuit condition : Wait
OC
B
B
AC32
2
2
This is the circuit that extends the write hold
time by making the rising of the write signal
1/2
Address bus
1
WE
WO
RD
clock earlier.
Data bus (odd)
Data bus (even)