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1-192
HARDWARE
1.20 Electrical characteristics
7470/7471/7477/7478 GROUP USER’S MANUAL
Table 1.20.7 Electrical characteristics (7471 group)
(VCC = 2.7 V to 5.5 V, VSS = AVSS = 0 V, Ta = –20 °C to +85 °C, unless otherwise noted)
Symbol
Parameter
Unit
Limits
Max.
Typ.
Min.
VOH
VOL
VT+ – VT–
IIL
IIH
ICC
VRAM
Test conditions
“H” output voltage
P00 to P07, P10 to P17
P20 to P27, P40 to P43
“L” output voltage
P00 to P07, P10 to P17
P20 to P27, P40 to P43
Hysteresis P00 to P07
P30 to P33
Hysteresis
_______
RESET
Hysteresis P14/SIN
P16/CLK
“L” input current
P00 to P07, P10 to P17,
P40 to P43, P50 to P53
“L” input current P30 to P33
“L” input current
P20 to P27
“L” input current
_______
XIN, RESET
“H” input current
P00 to P07, P10 to P17,
P40 to P43, P50 to P53
“H” input current P30 to P33
“H” input current
P20 to P27
“H” input current
_______
XIN, RESET
Power source current
RAM retention voltage
When used as SIN or CLK
VI = 0 V
Not use pull-up transistor
VI = 0 V
Use pull-up transistor
VI = 0V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
Ta = 25 °C
Ta = 85 °C
VCC = 5 V
VCC = 3 V
VCC = 5 V
VCC = 3 V
VI = 0 V, not use pull-up tran-
sistor, not use as analog input
VI = 0 V, use pull-up transis-
tor, not use as analog input
VI = 0 V
XIN is at stop mode
VI = VCC
Not use pull-up transistor
VI = VCC
VI = VCC, not use pull-up tran-
sistor, not use as analog input
VI = VCC
XIN is at stop mode
VCC = 5 V, IOH = –5 mA
VCC = 3 V, IOH = –1.5 mA
VCC = 5 V, IOL = 10 mA
VCC = 3 V, IOL = 3 mA
3.0
2.0
–0.25
–0.08
–0.25
–0.08
2.0
0.5
0.3
0.5
0.3
0.5
0.3
–0.5
–0.18
–0.5
–0.18
7
3.5
1.8
7.5
4
2
30
15
2
1
0.5
3
2
0.1
1
2.0
1.0
–5
–3
–1.0
–0.35
–5
–3
–5
–3
–1.0
–0.35
–5
–3
5
3
5
3
5
3
5
3
14
7
3.6
15
8
4
80
40
4
2
1
12
8
1
10
5.5
V
A
mA
A
mA
A
mA
A
mA
A
V
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
At system op-
eration,
A-D conversion
is executed
At system op-
eration,
A-D conversion
is not executed
In low-speed mode, Ta = 25°C, low-power mode
f(XCIN) = 32 kHz
At A-D conversion is not executed
At wait mode, Ta = 25°C,
low-power mode, f(XCIN) =
32 kHz
At stop mode, VCC = 5 V
Stop all oscillation
At wait mode