
APPENDIX
3-4
4551 Group User’s Manual
Unit
V
A
mA
A
k
k
V
k
k
k
Max.
0.9
1
5.0
65
20
1.0
10
125
250
70
130
6.5
8
9
11
1200
3.1.3 Electrical characteristics
Table 3.1.3 Electrical characteristics
(Mask ROM version:Ta = –20
°C to 70 °C, VDD = 2.2 V to 5.5 V, unless otherwise noted)
(One Time PROM version:Ta = –20
°C to 70 °C, VDD = 2.5 V to 5.5 V, unless otherwise noted)
Limits
Symbol
VOL
VOH
IIH
IIL
IOZ
IDD
RPH
VT+ – VT–
RCOM
RSEG
RVLC
Parameter
“L” level output voltage
P0, P1, D0–D7, CARR, RESET
“H” level output voltage CARR
“H” level input current P0, P1, P2, RESET
“L” level input current P1, P2
Output current at off-state D0–D7
Supply current
(Note 2)
Pull-up resistor
value
Hysteresis
COM output impedance
SEG output impedance
LCD power supply internal resistor value
(Note 3)
Test conditions
IOL = 5 mA
IOL = 2 mA
IOH = –15 mA
IOH = –7 mA
VI = VDD (Note 1)
VI = 0 V (Note 1)
VO = VDD
VDD = 5.0 V, f(XCIN) = 32 kHz, f(XIN) = 8 MHz
STCK = f(XIN)/4
VDD = 5.0 V
f(XCIN) = 32 kHz
STCK = f(XIN)
VDD = 3.0 V, f(XCIN) = 32 kHz, f(XIN) = 4 MHz
STCK = f(XIN)/4
VDD = 3.0 V
f(XCIN) = 32 kHz
STCK = f(XIN)
VDD = 5.0 V
f(XIN) = stop
f(XCIN) = 32 kHz
VDD = 3.0 V
f(XIN) = stop
f(XCIN) = 32 kHz
f(XIN) = stop
f(XCIN) = 32 kHz
Ta=25
°C
f(XIN) = stop
f(XCIN) = 32 kHz
f(XIN) = stop, f(XCIN) = stop, Ta = 25
°C
f(XIN) = stop, f(XCIN) = stop
VDD = 5.0 V, VI = 0 V
VDD = 3.0 V, VI = 0 V
VDD = 5.0 V, VI = 0 V
VDD = 3.0 V, VI = 0 V
VDD = 5.0 V
VDD = 3.0 V
VDD = 5.0 V
VDD = 3.0 V
VDD = 5.0 V
VDD = 3.0 V
VDD = 5.0 V
VDD = 3.0 V
Impedance between VLC3 and VSS
Ta=25
°C
Typ.
2.5
0.1
50
100
30
60
0.5
0.4
1.5
0.6
1.3
1.6
1.8
2.2
600
VDD = 5.0 V
VDD = 3.0 V
VDD = 5.0 V
VDD = 3.0 V
at active high-speed mode
while LCD is operating
(SEG0–SEG15)
at active low-speed mode
while LCD is operating
(SEG0–SEG15)
at clock operating mode
while LCD is operating
(SEG0–SEG15)
at RAM back-up mode
P0, P1
RESET
INT
RESET
f(XIN) = 2 MHz
f(XIN) = 1 MHz
f(XIN) = 500 kHz
STCK = f(XCIN)/4
STCK = f(XCIN)
STCK = f(XCIN)/4
STCK = f(XCIN)
VDD = 5.0 V
VDD = 3.0 V
VDD = 5.0 V
VDD = 3.0 V
Min.
2.4
1.0
–1
20
40
12
25
300
2.3
1.4
0.7
0.6
0.4
70
90
30
40
27.5
10
Notes 1: In this case, the pull-up transistor of port P1 is turned off and the port P2 function is selected by software.
2: The current value includes the current dissipation of the LCD power supply internal resistor (RVLC).
3: VLC3=VDD.
4.6
2.8
1.4
1.2
0.8
140
180
60
80
60
17.5
3.1 Electrical characteristics