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SM8951B датащи(PDF) 9 Page - SyncMOS Technologies,Inc |
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SM8951B датащи(HTML) 9 Page - SyncMOS Technologies,Inc |
9 / 18 page SyncMOS Technologies International, Inc. SM8951B 8-Bits Micro-controller With4KBFlashROM&128bytesRAM embedded Specifications subject to change without notice contact your sales representatives for the most recent information. ISSFD-M022Ver:BSM8951B 06/2009 9 ITL Transition current High to Low Port 1,2,3 See note 4 VCC = 3.6V, VIN = 2.0 V -75 400 μA ILI Input leakage current P0, /EA VCC = 3.0V ~3.6V, 0.45V<VIN<VCC -10 10 μA OUTPUT VOL1 Output LOW voltage, Port 0,ALE, /PSEN IOL = 6mA,VCC =3.3V 0.4 V VOL2 Output Low voltage Port 1,2,3 IOL = 5mA,VCC =3.3V 0.4 V VOH1 Output High voltage Port0, ALE, /PSEN IOH =-300uA,VCC =3.3V 2.4 V VOH2 Output High voltage Port 1,2,3 IOH =-20 μA,VCC =3.3V 2.4 V ISK1 Sink Current Port 1, 2, 3 VCC = 3.3V, VIN = 0.4 V 6 mA ISK2 Sink Current Port 0,ALE, /PSEN VCC = 3.3V, VIN = 0.4 V 8 mA ISR1 Source Current Port 1, 2, 3 VCC = 3.3V, VIN = 2.4 V -80 uA ISR2 Source Current Port 0,ALE, /PSEN VCC = 3.3V, VIN = 2.4 V -8 mA RRST Internal RESET pull-down resistor 50 300 k Ω CIO Pin capacitance Test freq=1MHz, TA=25℃ 10 pF NOTES FOR DC ELECTRICAL CHARACTERISTICS 1. The operating supply current is measured with all output disconnected; XTAL1 driven with tr = tf = 5ns; VIL = VSS+0.5V; VIH=VCC-0.5V; XTAL2 not connect; /EA=RST=Port0=VDD; 2. The IDLE MODE supply current is measured with all output pins disconnected; XTAL1 driven with tr = tf = 5ns; VIL = VSS+0.5V; VIH=VCC-0.5V; XTAL2 not connect; /EA=Port0=VDD; 3. The POWER-DOWN MODE supply current is measured with all output pins disconnected; VIL = VSS+0.5V; VIH=VCC-0.5V; XTAL2 not connect; /EA= Port0=VDD; 4. Port 1, 2, 3, and 4 sources a transition current when they are being externally driven from HIGH to LOW. The transition current reaches its maximum value when VIN is approximately 2V. 5. Capacities loading on port 0 and 2 may cause spurious noise to be superimposed on VOL of ALE and port 1, 3, and 4. The noise is due to external bus capacitance discharging into port 0 and port 2 pins when these pins make 1-to-0 transitions during bus operations. In the worst cases (capacitive loading > 100pF), the noise pulse on the ALE pin may exceed 0.8V. In such cases, it may be desirable to qualify ALE with a Schmitt Trigger, or use an address latch with a Schmitt trigger STROBE input. SM8951B Vcc Vcc RST XTAL2 XTAL1 VSS VCC PO EA (NC) Clock Signal ICC Active mode test circuit 8 ICC |
Аналогичный номер детали - SM8951B |
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Аналогичное описание - SM8951B |
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