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EM78P458/459
OTP ROM
6. ELECTRICAL CHARACTERISTICS
6.1 DC Electrical Characteristic
(Ta=0
°
C ~ 70
°
C, VDD=5.0V
±
5%, VSS=0V)
Symbol Parameter Condition Min Typ Max Unit
XTAL: VDD to 3V DC 8 MHz
XTAL: VDD to 5V
Two cycle with two clocks
DC 20 MHz
Fxt
RC: VDD to 5V
R: 5.1KΩ, C: 100pF F±30%
760
F±30%
KHz
IIL Input Leakage Current for input pins VIN = VDD, VSS
±1 µA
VIH1 Input High Voltage,VDD=5V Ports 5, 6 2.0 V
VIL1 Input Low Voltage,VDD=5V Ports 5, 6 0.8 V
VIHT1 Input High Threshold Voltage,VDD=5V /RESET, TCC 2.0 V
VILT1 Input Low Threshold Voltage,VDD=5V /RESET, TCC 0.8 V
VIHX1 Clock Input High Voltage,VDD=5V OSCI 2.5 V
VILX1 Clock Input Low Voltage,VDD=5V OSCI 1.0 V
VIH2 Input High Voltage,VDD=3V Ports 5, 6 1.5 V
VIL2 Input Low Voltage,VDD=3V Ports 5, 6 0.4 V
VIHT2 Input High Threshold Voltage,VDD=3V /RESET, TCC 1.5 V
VILT2 Input Low Threshold Voltage,VDD=3V /RESET, TCC 0.4 V
VIHX2 Clock Input High Voltage,VDD=3V OSCI 1.5 V
VILX2 Clock Input Low Voltage,VDD=3V OSCI 0.6 V
VOH1
Output High Voltage
(Ports 5, 6)
IOH = -12.0 mA 2.4 V
VOL1
Output Low Voltage (P51~P57, P60~P63,
P66~P67)
IOL = 12.0 mA 0.4 V
VOL2 Output Low Voltage (P64,P65) IOL = 16.0 mA 0.4 V
IPH Pull-high current
Pull-high active, input pin at
VSS
-50 -100 -240
µA
IPD Pull-down current
Pull-down active, input pin at
VDD
25 50 120
µA
ISB Power down current
All input and I/O pins at VDD,
output pin floating, WDT
enabled
10
µA
ISB Power down current
All input and I/O pins at VDD,
output pin floating, WDT
disabled
1
µA
ICC1
Operating supply current (VDD=3V) at two
clocks
/RESET='High',Fosc=32KHz
(Crystal type, two clocks),
output pin floating, WDT
disabled
15 30
µA
ICC2
Operating supply current (VDD=3V) at two
clocks
/RESET=‘High',Fosc=32KHz
(Crystal type, two clocks),
output pin floating, WDT
enabled
19 35
µA
ICC3
Operating supply current (VDD=5.0V) at
two clocks
/RESET='High', Fosc=2MHz
(Crystal type, two clocks),
output pin floating
2 mA
ICC4
Operating supply current (VDD=5.0V) at
two clocks
/RESET='High', Fosc=4MHz
(Crystal type, two clocks),
output pin floating
4.0 mA
This specification is subject to change without prior notice. 07.01.2003 (V1.3)
57