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