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UPD784938 Datasheet(PDF) 44 Page - NEC

Part # UPD784938
Description  16-Bit Single-Chip Microcontrollers
Download  733 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD784938 Datasheet(HTML) 44 Page - NEC

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CHAPTER 1
GENERAL
44
Preliminary User’s Manual U13987EJ1V0UM00
A8 to A19:
Address Bus
AD0 to AD7:
Address/Data Bus
ANI0 to ANI7:
Analog Input
ASCK, ASCK2:
Asynchronous Serial Clock
ASTB:
Address Strobe
AVDD:
Analog Power Supply
AVREF1:
Analog Reference Voltage
AVSS:
Analog Ground
CI:
Clock Input
CLKOUT:
Clock Output
HLDAK:
Hold Acknowledge
HLDRQ:
Hold Request
INTP0 to INTP5: Interrupt from Peripherals
NMI:
Non-maskable Interrupt
P00 to P07:
Port0
P10 to P17:
Port1
P20 to P27:
Port2
P30 to P37:
Port3
P40 to P47:
Port4
P50 to P57:
Port5
P60 to P67:
Port6
P70 to P77:
Port7
P90 to P97:
Port9
P100 to P107:
Port10
PWM0, PWM1:
Pulse Width Modulation 0, 1
RD:
Read Strobe
REFRQ:
Refresh Request
REGC:
Regulator Capacitance
REGOFF:
Regulator Off
RESET:
Reset
RX:
IEBus Receive Data
RxD, RxD2:
Receive Data
SCK0 to SCK3:
Serial Clock
SI0 to SI3:
Serial Input
SO0 to SO3:
Serial Output
TEST:
Test
TO0 to TO3:
Timer Output
TxD, TxD2:
Transmit Data
TX:
IEBus Transmit Data
VDD:
Power Supply
VPPNote:
Programming Power Supply
VSS:
Ground
WAIT:
Wait
WR:
Write Strobe
X1, X2:
Crystal (Main System Clock)
XT1, XT2:
Crystal (Watch)
Note
The VPP pin is used only in the
µPD78F4938.


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