EM78P447N
8-Bit Microcontroller with OTP ROM
Product Specification (V1.1) 03.30.2005
• 35
(This specification is subject to change without further notice)
Symbol Parameter Condition Min Typ. Max Unit
ISB2 Power down current
All input and I/O pins at VDD,
output pin floating, WDT
enabled
7
µA
ICC1
Operating supply current
(VDD=3V)
at two cycles/four clocks
RESET= 'High', Fosc=32KHz
(Crystal type,CLKS="0"),
output pin floating, WDT
disabled
25 30
µA
ICC2
Operating supply current
(VDD=3V)
at two cycles/four clocks
/RESET= 'High', Fosc=32KHz
(Crystal type,CLKS="0"),
output pin floating, WDT
enabled
30 35
µA
ICC3
Operating supply current
(VDD=5V)
at two cycles/two clocks
/RESET= 'High', Fosc=4MHz
(Crystal type, CLKS="0"),
output pin floating, WDT
enabled
1.6 2.2 mA
ICC4
Operating supply current
(VDD=5V)
at two cycles/four clocks
RESET= 'High', Fosc=10MHz
(Crystal type, CLKS="0"),
output pin floating, WDT
enabled
2.8 5.0 mA
6.2 AC Electrical Characteristic
(Ta=- -40°C ~ 85 °C, VDD=5V±5%, VSS=0V)
Symbol Parameter Conditions Min Typ Max Unit
Dclk Input CLK duty cycle 45 50 55 %
Crystal type 100 60000 ns
Tins
Instruction cycle time
(CLKS="0")
RC type 500 100000 ns
Ttcc TCC input period
(Tins+20)/N*
ns
Tdrh Device reset hold time
Ta = 25°C
11.3 16.2 21.6 ms
Trst /RESET pulse width
Ta = 25°C
2000 ns
Twdt Watchdog timer period
Ta = 25°C
11.3 16.2 21.6 ms
Tset Input pin setup time 0 ns
Thold Input pin hold time 15 20 25 ns
Tdelay Output pin delay time Cload=20pF 45 50 55 ns
Tiod I/O delay for EMI enable Cload=150pF 4 5 6 ns
Ttrr1 Rising time for EMI enable Cload=150pF 190 200 210 ns
Ttrf1 Falling time for EMI enable Cload=150pF 190 200 210 ns
Ttrr2 Rising time for EMI enable Cload=300pF 380 400 420 ns
Ttrf2 Falling time for EMI enable Cload=300pF 380 400 420 ns
Tdrc ERC delay time
Ta = 25°C
1 3 5 ns
* Data in Typ. is measured at 5V ,25°C
* N= selected prescaler ratio.
