UPD78323GJ(A1)-5BJ Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD78323GJ(A1)-5BJ

16/8-BIT SINGLE-CHIP MICROCONTROLLER

NEC => Renesas Technology 

µPD78323, 78324

DIFFERENCES BETWEEN µPD78324 AND 78323

Item

Product Name

Internal ROM

µPD78324

32K bytes

µPD78323

None

I/O line

Input

Input

/output

16 (dual-function as analog input: 8)

39

21

Port 4

(P40 to P47)

Specifiable as I/O as an 8-bit unit.

Functions as multiplexed address/data buses

(AD0 to AD7) in the external memory expansion

mode.

Functions always as multiplexed address/data

buses.

Port 5

(P50 to P57)

Specifiable as I/O bit-wise.

Functions as address bus (A8 to A15) in the

external memory expansion mode.

Functions always as address bus.

Port 9

(P90 to P93)

Memory expansion

mode register (MM)

Port 5 mode register

(PM5)

Specifiable as I/O bit-wise.

In the external memory expansion mode, P90

and P91 function as RD strobe signal output

and WR strobe signal output, respectively. In

the external memory high-speed fetch mode,

P92 P93 function as TAS output and TMD out-

put respectively.

Port 4 I/O mode is set as an 8-bit unit .

Port 5 I/O mode is set bit-wise.

Always P90 and P91 function as RD strobe and

WR strobe signal output, respectively.

In the µPD78324 emulation mode, turbo acces

acces manager (µPD71P301)Note PA and PB pins

are controlled as port 4 and port 5 emulation

pins.

Note Maintenance product

7

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