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