UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 294

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

15.4 Example of Connection with Memory
SRAM is connected. In addition, the external device expansion function is used in the full address mode, and 32
KB of addresses, 0000H to 7FFFH, are allocated to internal ROM; addresses 8000H and higher are allocated to SRAM.
292
Figure 15-9 shows an example of connecting the PD780984 and an external memory. In this application example,
AD0 to AD7
PD780984
ASTB
WR
RD
Figure 15-9. Example of Connecting PD780984 and Memory
CHAPTER 15 EXTERNAL DEVICE EXPANSION FUNCTION
Q0 to Q7
74HC573
LE
D0 to D7
OE
V
DD
User’s Manual U13029EJ7V1UD
Address bus
CS
OE
WE
I/O1 to I/O8
A0 to A7
PD43256B
Data bus