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23 Electrical Characteristics
23.1 Absolute Maximum Ratings
Item
Power supply voltage
Flash programming voltage
LCD power supply voltage
Input voltage
Output voltage
High level output current
Low level output current
Operating temperature
Storage temperature
23.2 Recommended Operating Conditions
Item
Power supply voltage
Flash programming voltage
LCD power supply voltage (1/3 bias)
LCD power supply voltage (1/4 bias)
OSC1 oscillator oscillation frequency
OSC3 oscillator oscillation frequency
EXOSC external clock frequency
Bypass capacitor between V
SS
Capacitors between V
and V
SS
Capacitor between C
and C
V1
Capacitors between V
and V
SS
Capacitor between V
and V
SS
C4
Capacitor between C
and C
P1
Capacitor between C
and C
P3
Capacitor between V
and V
SS
OSC
Gate capacitor for OSC1 oscillator
Drain capacitor for OSC1 oscillator
Gate capacitor for OSC3 oscillator
Drain capacitor for OSC3 oscillator
Oscillation resistor for OSC3 oscillator
DSIO pull-up resistor
Capacitor between V
and V
SS
PP
*1 The potential variation of the V
mounting board while the Flash is being programmed, as it affects the Flash memory characteristics (programming count).
*2 The C
–C
pins can be left open when super economy mode is not used.
V1
V2
*3 The V
–V
and C
–C
C1
C4
P1
P4
*4 Connect between the V
C3
be left open.
*5 The component values should be determined after performing matching evaluation of the resonator mounted on the printed cir-
cuit board actually used.
*6 R
is not required when using the DSIO pin as a general-purpose I/O port.
DBG
*7 The component values should be determined after evaluating operations using an actual mounting board.
S1C17W22/W23 TECHNICAL MANUAL
(Rev. 1.3)
Symbol
V
DD
V
PP
V
C1
V
C2
V
C3
V
C4
V
P00–03, P05–07, P10–14, P16, PD3–D4, #RESET
I
P04, P15, P17, P20–27, P30–37, P40–44, PD0–D1
V
P00–P07, P10–17, P20–27, P30–37, P40–44, PD0–D4
O
I
1 pin
OH
Total of all pins
I
1 pin
OL
Total of all pins
Ta
Tstg
Symbol
V
For normal operation
DD
For Flash programming
For super economy mode
V
PP
V
When an external voltage is applied
C1
V
V
≤ V
C2
C1
C2
V
/V
C3
C4
V
When an external voltage is applied
C1
V
V
≤ V
C2
C1
C2
V
C3
V
C4
f
Crystal oscillator
OSC1
f
Internal oscillator or crystal/
OSC3
ceramic oscillator
CR oscillator
f
When supplied from an
EXOSC
external oscillator
and V
C
DD
PW1
C
D1–2
PW2–3
C
*2
V2
CV
C
*3
C1–3
LCD1–3
C
*3, *4
LCD4
C
*3
P2
LCD5
C
*3, *4
P4
LCD6
C
OSC
C
*5
G1
C
*5
D1
C
When the crystal/ceramic oscillator is used *5
G3
C
When the crystal/ceramic oscillator is used *5
D3
R
When the CR oscillator is used
CR3
R
*6
DBG
C
VPP
voltage should be suppressed to within ±0.3 V on the basis of the ground potential of the MCU
SS
pins can be left open when the LCD driver is not used.
and V
pins when the LCD power supply circuit is configured for 1/3 bias. Also the C
C4
Seiko Epson Corporation
23 ELECTRICAL CHARACTERISTICS
Condition
P00–P07, P10–17, P20–27, P30–37,
P40–44, PD0–D4
P00–P07, P10–17, P20–27, P30–37,
P40–44, PD0–D4
Condition
≤ V
(= V
), V
≤ V
C3
C4
C1
DD
≤ V
≤ V
, V
≤ V
C3
C4
C1
DD
V
= 1.2 to 1.6 V
DD
V
= 1.6 to 3.6 V
DD
V
= 1.6 to 3.6 V
DD
V
= 1.2 to 1.6 V
DD
V
= 1.6 to 3.6 V
DD
(V
= 0 V)
SS
Rated value
Unit
-0.3 to 4.0
V
-0.3 to 8.0
V
-0.3 to 7.0
V
-0.3 to 7.0
V
-0.3 to 7.0
V
-0.3 to 7.0
V
-0.3 to V
+ 0.5
V
DD
-0.3 to 4.0
V
-0.3 to V
+ 0.5
V
DD
-10
mA
-20
mA
10
mA
20
mA
-40 to 85
°C
-65 to 125
°C
(V
= 0 V) *1
SS
Min.
Typ.
Max.
Unit
1.2
–
3.6
V
1.8
–
3.6
V
2.5
–
3.6
V
7.3
7.5
7.7
V
–
1.0
1.8
V
–
2.0
3.6
V
–
3.0
5.4
V
–
1.0
1.4
V
–
2.0
2.8
V
–
3.0
4.2
V
–
4.0
5.6
V
–
32.768
–
kHz
0.5
–
1.1
MHz
0.5
–
4.2
MHz
0.1
–
2.1
MHz
0.016
–
1.1
MHz
0.016
–
4.2
MHz
–
3.3
–
µF
–
1
–
µF
–
1
10
µF
–
1
–
µF
–
1
–
µF
–
1
–
µF
–
1
–
µF
–
0.1
–
µF
0
–
25
pF
–
0
–
pF
0
–
100
pF
0
–
100
pF
10
–
1,000
kW
–
10
–
kW
–
0.1
–
µF
–C
pins can
P3
P4
23-1
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