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EF6805U3FND View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
EF6805U3FND 8-BIT MICROCOMPUTER UNIT ST-Microelectronics
STMicroelectronics ST-Microelectronics
EF6805U3FND Datasheet PDF : 31 Pages
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EF6805U3
SWITCHING CHARACTERISTICS
(VCC = + 5.25Vdc ± 0.5Vdc, VS S = 0Vdc, TA = TL to TH unless otherwise noted)
Symbol
fosc
t cyc
tWL, tWH
t RWL
f IN T
Parameter
Oscillator Frequency
Cycle Time (4/fo sc)
INT, INT2, and TIMER Pulse Width (see interrupt
section)
RESET Pulse Width
INT Zero-crossing Detection Input Frequency
External Clock Input Duty Cycle (EXTAL)
Crystal Oscillator Start-up Time*
Min.
0.4
0.95
tcyc + 250
tcyc + 250
0.03
40
Typ.
50
PORT ELECTRICAL CHARACTERISTICS
(VCC = + 5.25Vdc ± 0.5Vdc, VS S = 0Vdc, TA = TL to TH unless otherwise noted)
PORT A WITH CMOS DRIVE ENABLED
Symbol
VOL
VOH
V IH
V IL
I IH
I IL
Parameter
Output Low Voltage (IL o ad = 1.6mA)
Output High Voltage
ILoad = – 100µA
ILoad = – 10µA
Input High Voltage (IL o ad = – 300µA max.)
Input Low Voltage (IL o ad = – 500µA max.)
High Z State Input Current (Vin = 2.0V to VCC)
High Z State Input Current (Vin = 0.4V)
Min.
Typ.
2.4
VCC – 1.0
2.0
VSS
PORT B
Symbol
VOL
VOH
IOH
V IH
V IL
ITSI
Parameter
Output Low Voltage
IL o ad = 3.2mA
IL o ad = 10mA (sink)
Output High Voltage I L o ad = – 200µA
Darlington Current Drive (source) VO = 1.5V
Input High Voltage
Input Low Voltage
High Z State Input Current
Min.
Typ.
2.4
– 1.0
2.0
V SS
<2
PORT C AND PORT A WITH CMOS DRIVE DISABLED
Symbol
VOL
VOH
V IH
V IL
ITSI
Parameter
Output Low Voltage I L o ad = 1.6mA
Output High Voltage I L o ad = – 100µA
Input High Voltage
Input Low Voltage
High Z State Input Current
Min.
2.4
2.0
V SS
Typ.
<2
Max.
4.2
10
1
60
100
Unit
MHz
µs
ns
ns
kHz
%
ms
Max.
Unit
0.4
V
V
VCC
V
0.8
V
– 300
µA
– 500
µA
Max.
Unit
V
0.4
1.0
V
– 10
mA
V CC
V
0.8
V
10
µA
Max.
0.4
V CC
0.8
10
Unit
V
V
V
V
µs
4/31
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