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EM78P468N/EM78P468L
8-Bit Microcontroller
Product Specification (V1.5) 02.15.2007
• 51
(This specification is subject to change without further notice)
8 Electrical Characteristic
8.1 DC Electrical Characteristics
Ta= -40°C ~85 °C, VDD= 5.0V, GND= 0V
Symbol Parameter Condition Min. Typ. Max. Unit
FXT Crystal: VDD to 5V Two cycles with two clocks 32.768 8M 10M kHz
Fs Sub-oscillator Two cycles with two clocks
−
32.768
−
kHz
External R, Internal C for
Sub-oscillator
R: 300KΩ, internal capacitance
270 384 500 kHz
ERIC
External R, Internal C for
Sub-oscillator
R: 2.2MΩ, internal capacitance
22.9 32.768 42.6 kHz
IIL Input Leakage Current for Input pins VIN = VDD, GND -1 0 1
μA
VIH1
Input High Threshold Voltage
(Schmitt Trigger)
Ports 5, 6, 7, 8 2.4
− −
V
VIL1
Input High Threshold Voltage
(Schmitt Trigger)
Ports 5, 6, 7, 8
− −
0.8 V
VIHT1
Input High Threshold Voltage
(Schmitt Trigger)
/RESET 2.4
− −
V
VILT1
Input Low Threshold Voltage
(Schmitt Trigger)
/RESET
− −
0.8 V
VIHT2
Input High Threshold Voltage
(Schmitt Trigger)
TCC, INT0, INT1 2.4
− −
V
VILT2
Input Low Threshold Voltage
(Schmitt Trigger)
TCC, INT0, INT1
− −
0.8 V
IOH1 Output High Voltage (Ports 5~8) VOH = 2.4V, IROCS=”0” -10
− −
mA
IOL1 Output Low Voltage (Ports 5~8) VOL = 0.4V, IROCS=”0”
− −
10 mA
IOH1
Output high voltage
(P5.7/IROUT pin)
VOH = 2.4V, IROCS=”1” -20
− −
mA
IOL2
Output Low Voltage
(P5.7/IR OUT pin)
VOL = 0.4V, IROCS=”1”
− −
20 mA
IPH Pull-high current Pull-high active, input pin at GND -55 -75 -95
μA
IPL Pull-low current Pull-low active, input pin at VDD 55 75 95
μA
ISB
Sleep mode current
All input and I/O pins at VDD,
Output pin floating,
WDT disabled
−
0.5 1.5
μA
ICC1 Idle mode current
/RESET= 'High', CPU OFF,
Sub-oscillator clock (32.768kHz)
ON, output pin floating,
LCD enabled, no load
−
14 18
μA
ICC2 Green mode current
/RESET= 'High', CPU ON,
Sub-oscillator clock (32.768kHz),
Output pin floating,
WDT enabled, LCD enabled
−
22 30
μA
ICC3 Normal mode
/RESET= 'High', Fosc=4MHz
(Crystal type, CLKS="0"),
Output pin floating
−
2.2 3 mA
ICC4 Normal mode
/RESET= 'High', Fosc=10MHz
(Crystal type, CLKS="0"),
Output pin floating
−
3.1 4 mA