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EM78P312N
8-Bit Microcontroller
60
• Product Specification (V1.0) 10.03.2006
(This specification is subject to change without further notice)
Ta= 25
°C, VDD= 3.0V ± 5%, VSS= 0V
Symbol Parameter Condition Min. Typ. Max. Unit
Fc Crystal: 2.5V to VDD Two cyclea with two clocks 1 − 4 MHz
ERC ERC: VDD = 3V R: 5.1KΩ, C: 100 pF 600 850 1100 kHz
VIHRC
Input High Threshold
Voltage (Schmitt Trigger)
OSCI in RC mode 1.6 2.3 2.8 V
IRC1 Sink current VI from low to high , VI=5V 7 9.5 12 μA
VILRC
Input Low Threshold
Voltage (Schmitt Trigger)
OSCI in RC mode 0.7 1 1.3 V
IRC2 Sink current VI from high to low , VI=2V 6 8.5 11 μA
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,A 0.7VDD − VDD+0.3V V
VIL1
Input Low Voltage
(Schmitt Trigger)
Ports 6,7,8,9,A -0.3V − 0.3VDD V
VIHT2
Input High Threshold
Voltage (Schmitt Trigger)
/RESET, TCC 0.7 VDD − VDD +0.3V V
VILT2
Input Low Threshold
Voltage (Schmitt Trigger)
/RESET, TCC -0.3V − 0.3 VDD V
VIHX1 Clock Input High Voltage LOSCI, OSCI in crystal mode 0.7 VDD − VDD +0.3V V
VILX1 Clock Input Low Voltage LOSCI, OSCI in crystal mode -0.3V − 0.3 VDD V
IOH1
Output High Voltage
(Ports 6, 7, 8, 9)
VOH = VDD-0.4V -2 -3.5 -5 mA
IOL1
Output Low Voltage
(Port 9)
VOL = VSS+0.4V 2 3.5 5 mA
IOL2
Output Low Voltage
(Ports 6,Port7, Port8)
VOL = VSS+0.4V 10 13 16 mA
IPH Pull-high current Pull-high active, input pin at VSS -15 -23 -31 μA
IPL Pull-low current Pull-low active, input pin at VDD 15 23 30 μA
ISB1
Sleep mode
Power down current
WDT disabled − 0.4 0.8 μA
ISB2
Sleep mode
Power down current
All input and I/O
pins at VDD,
output pin floating
WDT enabled − 1.5 3 μA
ICC3
Idle mode
Operating supply current
at two clocks
− 0.3 0.5 mA
ICC4
Normal mode
Operating supply current
at two clocks
VDD=3V, /RESET= 'High',
Fc=4MHz, CLKS="0", output pin
floating, WDT enabled
− 1.1 1.5 mA
Note: * Data in the Minimum, Typical, Maximum (“Min”, “Typ”, ”Max”) columns are based on characterization results at 25°C.