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