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EM78P468N
8-BIT Microcontroller
Product Specification
(V1.2) 03.15.2005
(This specification is subject to change without further notice)
57
(Ta= 25
°
C, VDD= 3.0V, GND= 0V)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
FXT
XTAL: VDD to 5V
Two cycle with two clocks
32.768K
8M
10M
Hz
Fs
Sub-oscillator
Two cycle with two clocks
32.768
KHz
ERIC
External R, internal C for
sub-oscillator
R: 300K
, internal capacitance
270
384
500
KHz
External R, internal C for
sub-oscillator
R: 2.2M
, internal capacitance
22.9
32.768 42.6 KHz
IIL
Input Leakage
input pins
D, GND
-1
0
1
μ
A
Current for
VIN = VD
VIH1
Input High Th
(Schmitt trigger)
6, 7, 8
1.8
V
reshold Voltage
Ports 5,
VIL1
Input Low Threshold Voltage
(Schmitt trigger)
Ports 5, 6, 7, 8
0.6
V
VIHT1
Input High Threshold Voltage
(Schmitt trigger)
/RESET
1.8
V
VILT1
Input Low Threshold Voltage
(Schmitt trigger)
/RESET
0.6
V
VIHT2
Input High Threshold Voltage
(Schmitt trigger)
TCC, INT0, INT1
1.8
V
VILT2
Input Low Threshold Voltage
(Schmitt trigger)
TCC, INT0, INT1
0.6
V
IOH1
Output High Voltage
(Ports 5, 6, 7, 8)
VOH = 2.4V, IROCS=”0”
-1.8
mA
IOL1
Output Low Voltage
(Ports 5, 6, 7, 8)
VOL = 0.4V, IROCS=”0”
6
mA
IOH1
Output high voltage
(P5.7/IROUT pin)
VOH = 2.4V, IROCS=”1
-3.5
mA
IOL2
Output Low Voltage
(P5.7/IR OU
VOL = 0.4V, IROCS=”1
12
mA
T pin)
IPH
Pull-high cu
Pull-high active, input pin at GND
-16
-23
-30
μ
A
rrent
IPL
Pull-low cur
w active, input pin at VDD
16
23
30
μ
A
rent
Pull-lo
ISB
Sleep mode current
All input and I/O pins at VDD, output
pin floating, WDT disabled
0.1
1
μ
A
ICC1
Idle mode current
/RESET= 'High', CPU OFF,
sub-oscillator clock (32.768KHz) ON,
output pin floating, LCD enable, no
load
4
8
μ
A
ICC2
Green mode current
/RESET= 'High', CPU ON, used
sub-oscillator clock (32.768KHz),
output pin floating, WDT enabled,
LCD enable
10
20
μ
A
ICC3
Normal mode
/RESET= 'High', Fosc=4MHz
(Crystal type, CLKS="0"), output pin
floating
0.73
1.2
mA