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

S1C62740 TECHNICAL HARDWARE EPSON I-121
CHAPTER 7: ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICSCHAPTER 7
7.1 Absolute Maximum Rating
7.2
Recommended Operating Conditions
(VSS = 0 V)
*1 The permissible total output current is the sum total of the current (average current) that simultaneously flows from the
output pins (or is drawn in).
*2 The A/D converter and AMP circuit are ON status.
*3 For plastic package (QFP5-100pin, QFP15-100pin)
Item
Symbol
Min. Typ. Max. UnitCondition
Power voltage
Oscillation frequency (1)
Oscillation frequency (2)
V
DD
f
OSC1
f
OSC3
2.2
2.4
–
50
3.0
3.0
32.768
1000
5.5
5.5
–
1300
V
V
kHz
kHz
V
SS
= 0 V
V
SS
= 0 V
When A/D converter or AMP is used
duty 50 ± 5 %
Item
Symbol
UnitRated value
Power voltage
Input voltage (1)
Input voltage (2)
Permissible output current *1
Operating temperature (1)
Operating temperature (2) *2
Strage temperature
Soldering temperature / Time
Allowable disspation *3
V
DD
V
I
V
IOSC
ΣI
VDD
Topr
1
Topr
2
T
stg
T
so
l
P
D
V
V
V
mA
°C
°C
°C
–
mW
-0.5 to 7.0
-0.5 to V
DD
+ 0.3
-0.5 to V
D1
+ 0.3
10
-20 to 70
0 to 50
-65 to 150
260°C, 10sec (lead section)
250