sh66k51a SinoWealth Micro-Electronics Corp. Ltd, sh66k51a Datasheet - Page 39

• Manufacturer Part Number: sh66k51a
• Description: 2k 4-bit Micro-controller With Lcd Driver
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

AP2 (Remote Control)
(1) Operating voltage: 3.0V
(2) Oscillator: Crystal 32.768kHz and Crystal 455kHz
(3) PORTA.0 - PORTA.2, PORTB, PORTC: I/O Buffers
(4) PORTA.3: Input Buffers
(5) RL = 0 is possible, but the REM specification is revised to reduce power consumption
0.1uF
C1
C2
C3
C4
0.1uF
0.1uF
0.1uF
0.1uF
32.768kHz
0.1uF
455kHz
V
DD
V
VP1
VP2
VP3
VSUB
RESET
OSCI
OSCO
GND
OSCXI
OSCXO
DD
CUP1 CUP 2
0.1uF
RF: Temperature Sensor
R1, 2: Reference Resistor
R
C1, C2: 12pF(for reference only)
C3, C4: 30pF(for reference only)
COM1-COM4/SEG29
OP
SEG5-SEG28
: Option Resistor
4 X 24 LCD
PORTB.0
PORTB.1
PORTB.2
PORTB.3
PORTA.0
PORTA.1
PORTA.2
PORTA.3
PORTC.0
PORTC.1
PORTC.2
PORTC.3
39
REM
RF
R2
R1
R
OP
RL
2uF
1.6Ω
V
DD
DT
CE = 47uF
SH66K51A