sh66k12 SinoWealth Micro-Electronics Corp. Ltd, sh66k12 Datasheet - Page 20

• Manufacturer Part Number: sh66k12
• Description: Mask 4-bit Microcontroller With Lcd Driver
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

SH66K12
Application Circuits
(for reference only)
SH66K12 chip substrate connects to system ground.
AP1
OSC: 262K RC (code option)
LCD: 1/4 duty, 1/3 bias
PORTA - D: I/O
4 X 26 LCD
1/3 bias
V
DD
RESET
10K - 50K
V
DD
SH66K12
OSCI
R
PORTA - D
GND
TEST
AP2
OSC: 32.768KHz crystal (code option)
LCD: 1/3 duty, 1/2 bias
PORTB - D: I/O
PORTA.0: external interrupt
PORTA.1, PORTA.2: ALARM output (carrier frequency: 2KHz or 4KHz code option)
3 X 26 LCD
1/2 bias
V
DD
20p
OSCI
RESET
10K - 50K
SH66K12
32768Hz
20p
PORTA.0
OSCO
GND
TEST
BUZZER
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