参数资料
型号: 784214AY
厂商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 马鞍山集成电路
文件页数: 58/100页
文件大小: 564K
代理商: 784214AY
Data Sheet U14121EJ2V0DS00
58
μ
PD784214A, 784215A, 784216A, 784217A, 784218A, 784214AY, 784215AY, 784216AY, 784217AY, 784218AY
9. LOCAL BUS INTERFACE
The local bus interface can connect an external memory or I/O (memory mapped I/O) and support a memory
space of 1 MB (refer to
Figure 9-1
).
Figure 9-1. Example of Local Bus Interface
(a) Multiplexed bus mode
(b) Separate bus mode
μ
PD784218A
RD
WR
A8 to A19
ASTB
AD0 to AD7
V
DD
Address latch
LE
Q0 to Q7
D0 to D7
OE
SRAM
CS
OE
WE
I/O1 to I/O8
A0 to A19
Data bus
Address bus
V
DD
Address bus
SRAM
CS
Data bus
OE
WE
I/O1 to I/O8
A0 to A19
μ
PD784218A
RD
WR
A0 to A19
AD0 to AD7
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参数描述
784215A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784215AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784216A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784216AY 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT
784217A 制造商:NEC 制造商全称:NEC 功能描述:MOS INTEGRATED CIRCUIT