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UPD754264 Datasheet(PDF) 5 Page - NEC

Part # UPD754264
Description  4-BIT SINGLE-CHIP MICROCONTROLLERS
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD754264 Datasheet(HTML) 5 Page - NEC

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5
µPD754264
1. PIN CONFIGURATION (TOP VIEW)
• 20-pin Plastic SOP (300 mil, 1.27-mm pitch)
µPD754264GS-×××-BA5
IC: Internally Connected (Connect to VDD directly)
Pin Identification
AN0, AN1
: Analog input 0,1
P70 to P73
: Port 7
AVREF
: Analog reference
P80
: Port 8
IC
: Internally connected
PTO0 to PTO2 : Programmable timer outputs 0 to 2
INT0
: External vectored interrupt 0
RESET
: Reset
KR4 to KR7
: Key returns 4 to 7
VDD
: Positive power supply
KRREN
: Key return reset enable
VSS
: Ground
P30 to P33
: Port 3
X1 and X2
: System clock (crystal/ceramic)
P60 to P63
: Port 6
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
RESET
X1
X2
VSS
IC
VDD
P60/AVREF
P61/INT0
P62/AN0
P63/AN1
KRREN
P80
P30/PTO0
P31/PTO1
P32/PTO2
P33
P70/KR4
P71/KR5
P72/KR6
P73/KR7


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