Specifications
Table Of Contents
- Technical Hardware
- 1 OVERVIEW
- 2 POWER SUPPLY AND INITIAL RESET
- 3 CPU, ROM, RAM
- 4 PERIPHERAL CIRCUITS AND OPERATION
- 4.1 Memory Map
- 4.2 Resetting Watchdog Timer
- 4.3 Oscillation Circuit
- 4.4 Input Ports (K00–K03, K10)
- 4.5 Output Ports (R00–R03)
- 4.6 I/O Ports (P00–P03, P10–P13, P20–P23)
- 4.7 LCD Driver (COM0–COM3, SEG0–SEG31)
- 4.8 Clock Timer
- 4.9 Stopwatch Timer
- 4.10 Programmable Timer
- 4.11 Serial Interface (SIN, SOUT, SCLK, SRDY)
- 4.12 A/D Converter
- 4.13 General-purpose Operation Amplifier (AMP)
- 4.14 SVD (Supply Voltage Detection) Circuit
- 4.15 Interrupt and HALT/SLEEP
- 5 SUMMARY OF NOTES
- 6 DIAGRAM OF BASIC EXTERNAL CONNECTIONS
- 7 CHARACTERISTICS
- 8 PACKAGE
- 9 PAD LAYOUT
- Technical Software
- 1 INTRODUCTION
- 2 BLOCK DIAGRAM
- 3 PROGRAM MEMORY (ROM)
- 4 DATA MEMORY
- 5 INITIAL RESET
- 6 PERIPHERAL CIRCUITS
- 6.1 Watchdog Timer
- 6.2 OSC3
- 6.3 Input Ports (K00–K03 and K10)
- 6.4 Output Ports (R00–R03)
- 6.5 I/O Ports (P00–P03, P10–P13 and P20–P23)
- 6.6 LCD Driver
- 6.7 Clock Timer
- 6.8 Stopwatch Timer
- 6.9 Programmable Timer
- 6.10 Serial Interface Circuit
- 6.11 Amplifier
- 6.12 SVD (Supply Voltage Detection) Circuit
- 6.13 A/D Converter
- 6.14 Sleep
- 6.15 Interrupt
- 7 SUMMARY OF NOTES
- APPENDIX

I-120 EPSON S1C62740 TECHNICAL HARDWARE
CHAPTER 6: DIAGRAM OF BASIC EXTERNAL CONNECTIONS
X'tal Crystal oscillator 32.768 kHz, CI (Max.) = 35 kΩ
C
GX Trimmer capacitor 5-25 pF
CR Ceramic oscillator 1 MHz
C
GC Gate capacitance 100 pF
C
DC Drain capacitance 100 pF
R
CR Resistance for CR oscillation 39 kΩ (fOSC3 ≈ 900 kHz)
R
A1 Resistance for LCD drive voltage adjustment 1 MΩ (VC1 ≈ 1.5 V)
R
A2 Resistance for LCD drive voltage adjustment 2 MΩ (VC1 ≈ 1.5 V)
TH Thermistor 10 kΩ (5 kΩ to 20 kΩ)
R
REF Reference resistance for resistance measurement 10 kΩ
R
I Integral resistance 680 kΩ (6400), 330 kΩ (3200), 180 kΩ (1600),
82 kΩ (800) ...(resolution)
C
I Integral capacitor 0.1 µF
C
AZ Capacitor for auto zero adjustment 0.1 µF
C
IF Analog input filter capacitor 0.01 µF
C1–C9 0.1 µF
C
P1, CP2 3.3 µF
Note: The above table is simply an example, and is not guaranteed to work.
R1 Protection resistance 100 Ω
R2 Protection resistance 100 Ω
• When the piezoelectric buzzer is driven directly
Piezo
R1 R2
R03
S1C62740
(BZ)
R02
(BZ)