UPD6P8 NEC [NEC], UPD6P8 Datasheet - Page 73

• Manufacturer Part Number: UPD6P8
• Description: MOS INTEGRATED CIRCUIT 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC [NEC]

V
V
V
V
DD
PP
PP
DD
Program Memory Write Timing
D
Program Memory Read Timing
0
GND
GND
to D
D
CLK
MD
MD
MD
MD
GND
GND
V
V
CLK
MD
MD
MD
MD
V
0
V
V
V
-D
PP
DD
DD
PP
DD
DD
7
0
1
2
3
7
0
1
2
3
t
RES
Hi-Z
t
t
I
RES
t
WAIT
t
t
I
PCR
t
WAIT
t
PCR
t
VPS
t
XL
t
t
M3S
Hi-Z
XH
t
XH
t
VPS
t
XL
t
AS
t
M3SR
t
t
DS
M1S
Data input
t
t
PW
DV
t
M1H
t
t
DH
t
XL
DV
Hi-Z
t
Data Sheet U17848EJ3V0DS
M1R
"L"
t
XH
Data output
t
DV
Data output
t
t
MOS
DF
Data output
t
HAD
t
DAD
Hi-Z
t
DS
Data input
t
OPW
µ PD6P8, 6P8A, 6P8B
t
M3HR
t
DH
t
AH
t
XL
t
XH
Hi-Z
t
AS
t
DFR
Hi-Z
Data input
t
M3H
Hi-Z
73