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S87C654-4A44 Datasheet(PDF) 9 Page - NXP Semiconductors |
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S87C654-4A44 Datasheet(HTML) 9 Page - NXP Semiconductors |
9 / 24 page Philips Semiconductors Product specification 87C652/87C654 80C51 8-bit microcontroller 8K/16K, 256 OTP, I2C 1999 Jul 23 9 DC ELECTRICAL CHARACTERISTICS VSS = 0 V TEST LIMITS SYMBOL PARAMETER PART TYPE CONDITIONS MIN. MAX. UNIT VIL Input low voltage, except EA, P1.6/SCL, P1.7/SDA 0 to +70 °C –40 to +85 °C –0.5 –0.5 0.2VCC–0.1 0.2VCC–0.15 V V VIL1 Input low voltage to EA 0 to +70 °C –40 to +85 °C –0.5 –0.5 0.2VCC–0.3 0.2VCC–0.35 V V VIL2 Input low voltage to P1.6/SCL, P1.7/SDA1 –0.5 0.3VCC V VIH Input high voltage, except XTAL1, RST, P1.6/SCL, P1.7/SDA 0 to +70 °C –40 to +85 °C 0.2VCC+0.9 0.2VCC+1.0 VCC+0.5 VCC+0.5 V V VIH1 Input high voltage, XTAL1, RST 0 to +70 °C –40 to +85 °C 0.7VCC 0.7VCC+0.1 VCC+0.5 VCC+0.5 V V VIH2 Input high voltage, P1.6/SCL, P1.7/SDA1 0.7VCC 6.0 V VOL Output low voltage, ports 1, 2, 3, except P1.6/SCL, P1.7/SDA IOL = 1.6mA2, 3 0.45 V VOL1 Output low voltage, port 0, ALE, PSEN IOL = 3.2mA2, 3 0.45 V VOL2 Output low voltage, P1.6/SCL, P1.7/SDA IOL = 3.0mA 0.4 V VOH Output high voltage, ports 1, 2, 3 0 to +70 °C –40 to +85 °C IOH = –60µA IOH = –25µA 2.4 0.75VCC V V VOH1 Output high voltage; port 0 in external bus mode, ALE, PSEN, RST4 0 to +70 °C –40 to +85 °C IOH = –400µA IOH = –150µA 2.4 0.75VCC V V IIL Logical 0 input current, ports 1, 2, 3, 4, except P1.6/SCL, P1.7/SDA 0 to +70 °C –40 to +85 °C VIN = 0.45V –50 –75 µA µA ITL Logical 1-to-0 transition current, ports 1, 2, 3, except P1.6/SCL, P1.7/SDA 0 to +70 °C –40 to +85 °C See note 5 –650 –750 µA µA IL1 Input leakage current, port 0 0.45V < VI < VCC ±10 µA IL2 Input leakage current, P1.6/SCL, P1.7/SDA 0V < VI < 6.0V 0V < VCC < 6.0V ±10 µA µA ICC Power supply current: See note 6 VCC=6.0V Active mode @ 16 MHz7 25 mA Idle mode @ 16 MHz8 6 mA Power down mode9, 10 0 to +70 °C 50 µA Power down mode9, 10 –40 to +85 °C 135 µA RRST Internal reset pull-down resistor 50 150 k Ω CIO Pin capacitance Freq.=1 MHz 10 pF NOTES: 1. The input threshold voltage of P1.6 and P1.7 (SIO1) meets the I2C specification, so an input voltage below 0.3VCC will be recognized as a logic 0 while an input voltage above 0.7VCC will be recognized as a logic 1. 2. Capacitive loading on ports 0 and 2 may cause spurious noise to be superimposed on the VOLs of ALE and ports 1 and 3. The noise is due to external bus capacitance discharging into the port 0 and port 2 pins when these pins make 1-to-0 transitions during bus operations. In the worst cases (capacitive loading > 100 pF), the noise pulse on the ALE pin may exceed 0.8 V. 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. IOL can exceed these conditions provided that no single output sinks more than 5 mA and no more than two outputs exceed the test conditions. 3. Under steady state (non-transient) conditions, IOL must be externally limited as follows: Maximum IOL = 10 mA per port pin; Maximum IOL = 26 mA total for Port 0; Maximum IOL = 15 mA total for Ports 1, 2, and 3; Maximum IOL = 71 mA total for all output pins. If IOL exceeds the test conditions, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test conditions. 4. Capacitive loading on ports 0 and 2 may cause the VOH on ALE and PSEN to momentarily fall below the 0.9VCC specification when the address bits are stabilizing. 5. Pins of ports 1 , 2, and 3 source a transition current when they are being externally driven from 1 to 0. The transition current reaches its maximum value when VIN is approximately 2 V. 6. See Figures 9 through 11 for ICC test conditions. 7. The operating supply current is measured with all output pins disconnected; XTAL1 driven with tr = tf = 10ns; VIL = VSS + 0.5 V; VIH = VCC –0.5 V; XTAL2 not connected; EA = RST = Port 0 = P1.6 = P1.7 = VCC; fCLK = 16 MHz. See Figure 9. 8. The idle mode supply current is measured with all output pins disconnected; XTAL1 driven with tr = tf = 10 ns; VIL = VSS + 0.5 V; VIH = VCC –0.5 V; XTAL2 not connected; Port 0 = P1.6 = P1.7 = VCC; EA = RST = VSS; fCLK = 16 MHz. See Figure 10. 9. The power-down current is measured with all output pins disconnected; XTAL2 not connected; Port 0 = P1.6 = P1.7 = VCC; EA = RST = VSS. See Figure 11. 10. 2V ≤ VPD ≤ VCCmax. |
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