| Zakładka z wyszukiwarką danych komponentów |
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AT89LS51 Arkusz danych(PDF) 22 Page - ATMEL Corporation |
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AT89LS51 Arkusz danych(HTML) 22 Page - ATMEL Corporation |
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22 / 32 page ![]() 22 3053B–MICRO–3/05 AT89LS51 Notes: 1. Under steady state (non-transient) conditions, I OL must be externally limited as follows: Maximum IOL per port pin: 10 mA Maximum I OL per 8-bit port: Port 0: 26 mA Ports 1, 2, 3: 15 mA Maximum total IOL for all output pins: 71 mA If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test conditions. 2. Minimum VCC for Power-down is 2V. 22. DC Characteristics The values shown in this table are valid for T A = -40°C to 85°C and VCC = 2.7V to 4.0V, unless otherwise noted. Symbol Parameter Condition Min Max Units V IL Input Low Voltage (Except EA)-0.5 0.7 V VIL1 Input Low Voltage (EA)-0.5 0.2 VCC-0.3 V V IH Input High Voltage (Except XTAL1, RST) 0.2 V CC+0.9 V CC+0.5 V V IH1 Input High Voltage (XTAL1, RST) 0.7 V CC V CC+0.5 V V OL Output Low Voltage (1) (Ports 1,2,3) I OL = 0.8 mA 0.45 V V OL1 Output Low Voltage (1) (Port 0, ALE, PSEN) I OL = 1.6 mA 0.45 V V OH Output High Voltage (Ports 1,2,3, ALE, PSEN) I OH = -60 µA 2.4 V I OH = -25 µA 0.65 V CC V IOH = -10 µA 0.80 VCC V V OH1 Output High Voltage (Port 0 in External Bus Mode) I OH = -800 µA 2.4 V I OH = -300 µA 0.75 V CC V IOH = -80 µA 0.9 VCC V I IL Logical 0 Input Current (Ports 1,2,3) V IN = 0.45V -50 µA I TL Logical 1 to 0 Transition Current (Ports 1,2,3) V IN = 2V -150 µA I LI Input Leakage Current (Port 0, EA) 0.45 < V IN < VCC ±10 µA RRST Reset Pulldown Resistor 50 300 K Ω C IO Pin Capacitance Test Freq. = 1 MHz, T A = 25°C 10 pF I CC Power Supply Current Active Mode, 12 MHz 25 mA Idle Mode, 12 MHz 6.5 mA Power-down Mode (2) V CC = 4.0V 30 µA |
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