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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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EM78P152S 数据表(PDF) 38 Page - List of Unclassifed Manufacturers |
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EM78P152S 数据表(HTML) 38 Page - List of Unclassifed Manufacturers |
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38 / 52 page  EM78P152/3S 8-Bit Microcontroller with OTP ROM 34 • Product Specification (V1.8) 09.08.2009 (This specification is subject to change without further notice) Symbol Parameter Condition Min. Typ. Max. Unit ISB1 Power down current All input and I/O pins at VDD, Output pin floating, WDT disabled - - 1 μA ISB2 Power down current All input and I/O pins at VDD, Output pin floating, WDT enabled - - 10 μA ICC1 Operating supply current at two clocks (VDD=3V) /RESET= 'High', Fosc=32kHz (Crystal type, CLKS="0"), Output pin floating, WDT disabled 15 15 30 μA ICC2 Operating supply current at two clocks (VDD=3V) /RESET= 'High', Fosc=32kHz (Crystal type, CLKS="0"), Output pin floating, WDT enabled - 19 35 μA ICC3 Operating supply current at two clocks (VDD=5.0V) /RESET= 'High', Fosc=4 MHz (Crystal type, CLKS="0"), Output pin floating - - 2.0 mA ICC4 Operating supply current at two clocks (VDD=5.0V) /RESET= 'High', Fosc=10 MHz (Crystal type, CLKS="0"), Output pin floating - - 4.0 mA Note: * These parameters are theoretical values and have not been tested. 7.2 AC Characteristics Ta=25°C, VDD=5V ± 5%, VSS=0V Symbol Parameter Conditions Min. Typ. Max. Unit Dclk Input CLK duty cycle - 45 50 55 % Crystal type 100 - DC ns Tins Instruction cycle time (CLKS="0") RC type 500 - DC ns Ttcc TCC input period - (Tins+20)/N * - - ns Tdrh Device reset hold time Ta = 25 °C, TXAL, SUT1, SUT0=1, 1 17.6-30% 17.6 17.6+30% ms Trst /RESET pulse width Ta = 25 °C 2000 - - ns *Twdt1 Watchdog timer period Ta = 25 °C SUT1, SUT0=1,1 17.6~30% 17.6 17.6+30% ms *Twdt2 Watchdog timer period Ta = 25 °C SUT1, SUT0=1,0 4.5+30% 4.5 4.5+30% ms *Twdt3 Watchdog timer period Ta = 25 °C SUT1, SUT0=0,1 288~30% 288 288+30% ms *Twdt4 Watchdog timer period Ta = 25 °C SUT1, SUT0=0,0 72~30% 72 72+30% ms Tset Input pin setup time - - 0 - ns Thold Input pin hold time - - 20 - ns Tdelay Output pin delay time Cload=20pF - 50 - ns Note: These parameters are theoretical values and have not been tested. The Watchdog Timer duration is determined by Option Code (Bit 6, Bit 5) *N = selected prescaler ratio *Twdt1: The Option word (SUT1, SUT0) is used to define the oscillator set-up time. In Crystal mode the WDT time-out length is the same as set-up time (18 ms). *Twdt2: The Option word (SUT1, SUT0) is used to define the oscillator set-up time. In Crystal mode the WDT time-out length is the same as set-up time (4.5 ms). *Twdt3: The Option word (SUT1, SUT0) is used to define the oscillator set-up time. In Crystal mode the WDT time-out length is the same as set-up time (288 ms). *Twdt4: The Option word (SUT1, SUT0) is used to define the oscillator set-up time. In Crystal mode the WDT time-out length is the same as set-up time (72 ms). |
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