lc86p7148 Sanyo Semiconductor Corporation, lc86p7148 Datasheet - Page 8

• Manufacturer Part Number: lc86p7148
• Description: 8-bit Single Chip Microcontroller With One-time Programmable Prom
• Manufacturer: Sanyo Semiconductor Corporation

* All of port options can be specified in bit unit except the pull-up resistor of port 0.
[Notes] • The VDD1, VDD2 and VDD3 terminals must be shorted electrically each other.
*1 Connect like the following figure to reduce noise into a VDD terminals.
*2 Memory select input for data security
*3 Output enable input
*4 Chip enable input
*5 TA  PROM control signal input
PORT A
(S0/PA0 –
S7/PA7)
PORT B
(S8/PB0 –
S13/PB5)
PORT C
(S16/PC0 –
S23/PC7)
PORT D
(S24/PD0 –
S31/PD7)
PORT L
(COM0/PL0 –
COM3/PL3)
V1/PL4 –
V3/PL6
XT1/
XT2/P75
CF1
CF2
RES
Pin name
P74
• The VSS1, VSS2 and VSS3 terminals must be shorted electrically each other.
( I )
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I
I
I
I
• Segment output terminal for LCD display
• Can be used as a general input/output port
• Segment output terminal for LCD display
• Can be used as a general input/output port
• Segment output terminal for LCD display
• Can be used as a general input/output port
• Segment output terminal for LCD display
• Can be used as a general input/output port
• Common output terminal for LCD display
• Can be used as a general input port
• Bias power terminal for LCD drive
• Can be used as a general input port
Reset pin
• Input pin for 32.768kHz crystal oscillation
• Other function
• Output pin for 32.768kHz crystal oscillation
• Other function
Input pin for ceramic resonator oscillation
Output pin for ceramic resonator oscillation
In case of non use, connect to VDD.
A general input port
In case of non use, should be left unconnected
A general input port P75
Supply
Power
Function description
P74
LC86P7148
LSI
VDD1
VDD2
VDD3
VSS1 VSS2 VSS3
-
-
-
-
-
-
-
-
-
-
-
Option
Address
Address
PROM
PROM mode
input
A0 to A7
input
A8 to A13
control
signal input
•TA(*5)
Address input
•A14,A15
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