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EM78P447N
8-Bit Microcontroller with OTP ROM
34 •
Product Specification (V1.1) 03.30.2005
(This specification is subject to change without further notice)
5 ABSOLUTE MAXIMUM RATINGS
Items Rating
Temperature under bias
-40°C
to
85°C
Storage temperature
-65°C
to
150°C
Input voltage VSS-0.3V to VDD+0.5V
Output voltage VSS-0.3V to VDD+0.5V
Operating Frequency (2clk) 32.768KHz to 20MHz
Operating Voltage 2.5V to 5.5V
6 DC ELECTRICAL CHARACTERISTICS
6.1 DC Electrical Characteristic
(Ta= 25 °C, VDD= 5.0V±5%, VSS= 0V )
Symbol Parameter Condition Min Typ. Max Unit
XTAL: VDD to 3V Two cycle with two clocks DC 8.0 MHz
FXT
XTAL: VDD to 5V Two cycle with two clocks DC 20.0 MHz
ERC ERC: VDD to 5V
R: 5.1KΩ, C: 100 pF F±30%
950
F±30%
KHz
IIL
Input Leakage Current for
input pins
VIN = VDD, VSS
±1 µA
VIH1 Input High Voltage (VDD=5V) Ports 5, 6,7 2.0 V
VIL1 Input Low Voltage (VDD=5V) Ports 5, 6,7 0.8 V
VIHT1
Input High Threshold Voltage
(VDD=5V)
/RESET, TCC,INT 2.0 V
VILT1
Input Low Threshold Voltage
(VDD=5V)
/RESET, TCC,INT 0.8 V
VIHX1
Clock Input High Voltage
(VDD=5V)
OSCI 3.5 V
VILX1
Clock Input Low Voltage
(VDD=5V)
OSCI 1.5 V
VIH2 Input High Voltage (VDD=3V) Ports 5, 6,7 1.5 V
VIL2 Input Low Voltage (VDD=3V) Ports 5, 6,7 0.4 V
VIHT2
Input High Threshold Voltage
(VDD=3V)
/RESET, TCC,INT 1.5 V
VILT2
Input Low Threshold Voltage
(VDD=3V)
/RESET, TCC,INT 0.4 V
VIHX2
Clock Input High Voltage
(VDD=3V)
OSCI 2.1 V
VILX2
Clock Input Low Voltage
(VDD=3V)
OSCI 0.9 V
VOH1
Output High Voltage
(Ports 5, 6, 7)
IOH = -10.0 mA 2.4 V
VOL1
Output Low Voltage
(Ports 5, 6)
IOL = 9.0 mA 0.4 V
VOL2
Output Low Voltage
(Port7)
IOL = 14.0 mA 0.4 V
IPH Pull-high current
Pull-high active, input pin at
VSS
-50 -100 -240
µA
ISB1 Power down current
All input and I/O pins at VDD,
output pin floating, WDT
disabled
1
µA