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7
Electrical Characteristics
7.1 DC Electrical Characteristics
Ta= 25 ° C, VDD= 5.0V ± 5%, VSS= 0V
Symbol
Parameter
Fc
Crystal: 4.5V to VDD
ERC
ERC: VDD = 5V
Input High Threshold Voltage
VIHRC
(Schmitt Trigger )
IRC1 Sink current
Input Low Threshold Voltage
VILRC
(Schmitt Trigger )
IRC2 Sink current
Input Leakage Current for input
IIL
pins
Input High Voltage
VIH1
(Schmitt Trigger)
Input Low Voltage
VIL1
(Schmitt Trigger)
Input High Threshold Voltage
VIHT1
(Schmitt Trigger)
Input Low Threshold Voltage
VILT1
(Schmitt Trigger)
VIHX1 Clock Input High Voltage
VILX1 Clock Input Low Voltage
Output High Voltage
IOH1
(Ports 6, 7, 8, 9)
Output Low Voltage
IOL1
(Port 9)
Output Low Voltage
IOL2
(Ports 6, Port 7, Port 8)
IPH
Pull-high current
IPL
Pull-Low current
Sleep mode
ISB1
Power down current
Sleep mode
ISB2
Power down current
Idle mode
ICC3
Operating supply current
at two clocks
Normal mode
ICC4
Operating supply current
at two clocks
*
Data in the Minimum, Typical, Maximum ("Min", "Typ", "Max") columns are based on characterization results at 25°C.
Note:
Product Specification (V1.0) 10.03.2006
(This specification is subject to change without further notice)
Condition
Two cycles with two clocks
R: 5.1KΩ, C: 100 pF
OSCI in RC mode
VI from low to high , VI=5V
OSCI in RC mode
VI from high to low , VI=2V
VIN = VDD, VSS
Ports 6, 7, 8, 9
Ports 6, 7, 8, 9,
/RESET, TCC, INT
/RESET, TCC, INT
OSCI in crystal mode
OSCI in crystal mode
VOH = VDD-0.4V
VOL = VSS+0.4V
VOL = VSS+0.4V
Pull-high active, input pin at VSS
Pull-high active, input pin at VDD
WDT
All input and I/O
disabled
pins at VDD,
WDT
output pin floating
enabled
VDD=5V, /RESET= 'High',
Fc=8MHz, CLKS="0", output pin
floating, WDT enabled
EM78P312N
8-Bit Microcontroller
Min.
Typ.
Max.
1
−
10
630
900
1170
2.8
4
4.5
15.5
22
28.5
1.3
1.8
2.7
12
17
22
-1
0
1
−
0.7V
V
+0.3V
DD
DD
−
-0.3V
0.3 V
DD
−
0.7 V
V
+0.3V
DD
DD
−
-0.3V
0.3 V
DD
−
0.7V
V
+0.3V
DD
DD
−
-0.3V
0.3V
DD
-3.5
-5
-6.5
3
5
7
12
15
20
-50
-75
-100
50
75
100
−
0.8
1.5
−
6
10
−
1.1
1.5
−
3.0
3.5
Unit
MHz
kHz
V
mA
V
mA
μA
V
V
V
V
V
V
mA
mA
mA
μA
μA
μA
μA
mA
mA
• 59
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