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UPD78363A Datasheet(PDF) 6 Page - NEC

No. de Pieza. UPD78363A
Descripción  16/8-BIT SINGLE-CHIP MICROCONTROLLERS
Descarga  96 Pages
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Fabricante  NEC [NEC]
Página de inicio  http://www.nec.com/
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UPD78363A Datasheet(HTML) 6 Page - NEC

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µPD78363A, 78365A, 78366A, 78368A
6
49
Can be set in input or output mode in units
of 8 bits. In external memory expansion
mode, this port functions as multiplexed
address/data bus (AD0-AD7).
Can be set in input or output mode in
1-bit units. In external memory expansion
mode, this port functions as address bus
(A8-A15).
Can be set in input or output mode in
1-bit units. In external memory expansion
mode, P90 outputs RD strobe signal, and
P91 outputs WR strobe signal.
Sets port 4 in input or output mode in units
of 8 bits. In external memory expansion
mode, sets memory expansion width of ports
4 and 5.
Sets port 5 in input or output mode in
1-bit units.
• In ordinary operation mode:
MODE0, 1 = LL
• In ROM-less mode:
MODE0, 1 = HH
DIFFERENCES BETWEEN
µPD78363A, 78365A, 78366A, AND 78368A
ROM
Internal ROM
RAM
Input
I/O lines
I/O
Port 4 (P40-P47)
Port 5 (P50-P57)
Port 9 (P90-P93)
Memory expansion
mode register (MM)
Port 5 mode
register (PM5)
Setting of
MODE0, MODE1
Product name
Item
24K bytes
32K bytes
48K bytes
None
786 bytes
2K bytes
14 (of which 8 are multiplexed with analog input)
31
Always functions as multiplexed address/
data bus (AD0-AD7).
Always functions as address bus (A8-A15)
P90 always functions as RD strobe signal
output pin, and P91 always functions as WR
strobe signal output pin. P92 and P93
function as I/O port lines.
Always fixed to external memory expansion
mode.
None
• Always set as follows:
MODE0, 1 = HH
µPD78363A
µPD78366A
µPD78365A
µPD78368A


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