EM78P341N/342N/343N
8-Bit Microprocessor with OTP ROM
7 Absolute Maximum Ratings
Items
Rating
Temperature under bias
Storage temperature
Input voltage
-40°C
-65°C
Vss-0.3V
Vss-0.3V
2.5V
to
to
to
to
to
to
85°C
150°C
Vdd+0.5V
Vdd+0.5V
5.5V
Output voltage
Working Voltage
Working Frequency
DC
20MHz
8 DC Electrical Characteristics
Ta=25 °C, VDD=5.0V±5%, VSS=0V
Symbol
Parameter
Crystal: VDD to 5V
Crystal: VDD to 3V
ERC: VDD to 5V
IRC: VDD to 5 V
Condition
Min
DC
Typ
−
−
830
F
Max
Unit
MHz
MHz
kHz
Hz
20
8
Two cycles with two clocks
DC
Fxt
R: 5.1KΩ, C: 100 pF
8MHz,4MHz, 1MHz, 455kHz
RCM0:RCM1=1:1
F±30%
F±30%
3.84
F±30%
F±30%
4.16
IRC1 IRC:VDD to 5V
IRC2 IRC:VDD to 5V
IRC3 IRC:VDD to 5V
IRC4 IRC:VDD to 5V
MHz
MHz
MHz
kHz
4.0
8.0
1.0
455
RCM0:RCM1=1:0
7.68
8.32
RCM0:RCM1=0:1
0.96
1.06
RCM0:RCM1=0:0
436.8
473.2
Input High Threshold
Voltage (Schmitt Trigger )
VIHRC
VILRC
IIL
OSCI in RC mode
OSCI in RC mode
VIN = VDD, VSS
Ports 5, 6, 7
Ports 5, 6, 7
/RESET
−
−
3.5
−
−
1
−
−
−
−
−
−
V
V
Input Low Threshold
Voltage (Schmitt Trigger )
1.5
Input Leakage Current for
input pins
-1
−
0
µA
V
Input High Voltage
(Schmitt Trigger )
VIH1
3.75
1.25
2.0
Input Low Voltage
(Schmitt Trigger )
VIL1
−
V
Input High Threshold
Voltage (Schmitt Trigger )
VIHT1
VILT1
VIHT2
VILT2
−
V
Input Low Threshold
Voltage (Schmitt Trigger )
/RESET
−
1.0
V
Input High Threshold
Voltage (Schmitt Trigger )
TCC, INT
−
3.75
1.25
V
Input Low Threshold
Voltage (Schmitt Trigger )
TCC, INT
−
V
VIHX1 Clock Input High Voltage
VILX1 Clock Input Low Voltage
OSCI in crystal mode
OSCI in crystal mode
−
−
3.5
1.5
−
−
V
V
Output High Voltage
IOH1
VOH = VDD-0.5V
VOH = VDD-0.5V
−
−
-3.7
-10
−
−
mA
mA
(Ports 5, P60~66,P70)
Output High Voltage
IOH2
(IR OUT (Port 67))
Product Specification (V1.0) 12.01.2006
(This specification is subject to change without further notice)
• 83
ELAN [ ELAN MICROELECTRONICS CORP ]
