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80C31 Datasheet(PDF) 11 Page - NXP Semiconductors |
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80C31 Datasheet(HTML) 11 Page - NXP Semiconductors |
11 / 30 page Philips Semiconductors Product specification 80C31/80C51/87C51 CMOS single-chip 8-bit microcontrollers 1996 Aug 16 11 DC ELECTRICAL CHARACTERISTICS Tamb = 0°C to +70°C or –40°C to +85°C, VCC = 5V ±20%, VSS = 0V (PCB80C31/51 and PCF80C31/51) (12, 16, and 24MHz versions) Tamb = 0°C to +70°C or –40°C to +85°C, VCC = 5V ±10%, VSS = 0V (87C51 12, 16, and 24MHz versions) (PCB80C31/51 33MHz version); For SC87C51 (33MHz only) Tamb = 0°C to +70°C, VCC = 5V ±5% TEST LIMITS SYMBOL PARAMETER CONDITIONS MIN TYPICAL1 MAX UNIT VIL Input low voltage, except EA7 –0.5 0.2VCC–0.1 V VIL1 Input low voltage to EA7 0 0.2VCC–0.3 V VIH Input high voltage, except XTAL1, RST7 0.2VCC+0.9 VCC+0.5 V VIH1 Input high voltage, XTAL1, RST7 0.7VCC VCC+0.5 V VOL Output low voltage, ports 1, 2, 311 IOL = 1.6mA2 0.45 V VOL1 Output low voltage, port 0, ALE, PSEN11 IOL = 3.2mA2 0.45 V VOH Output high voltage, ports 1, 2, 3, ALE, PSEN3 IOH = –60µA, IOH = –25µA IOH = –10µA 2.4 0.75VCC 0.9VCC V V V VOH1 Output high voltage (port 0 in external bus mode) IOH = –800µA, IOH = –300µA IOH = –80µA 2.4 0.75VCC 0.9VCC V V V IIL Logical 0 input current, ports 1, 2, 37 VIN = 0.45V –50 µA ITL Logical 1-to-0 transition current, ports 1, 2, 37 See note 4 –650 µA ILI Input leakage current, port 0 VIN = VIL or VIH ±10 µA ICC Power supply current:7 Active mode @ 12MHz8 (Philips) Active mode @ 12MHz5 (Philips North America) Idle mode @ 12MHz9 (Philips) Idle mode @ 12MHz (Philips North America) Power-down mode10 (Philips and Philips North America) See note 6 11.5 1.3 3 18 19 4.4 4 50 mA mA mA mA µA RRST Internal reset pull-down resistor (Philips North America) 50 300 k Ω (Philips) 50 150 k Ω CIO Pin capacitance12 10 pF NOTES: 1. Typical ratings are not guaranteed. The values listed are at room temperature, 5V. 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 > 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. IOL can exceed these conditions provided that no single output sinks more than 5mA and no more than two outputs exceed the test conditions. 3. 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. 4. 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 2V. 5. ICCMAX at other frequencies (for Philips North America parts) is given by: Active mode: ICCMAX = 1.43 X FREQ + 1.90; Idle mode: ICCMAX = 0.14 X FREQ +2.31, where FREQ is the external oscillator frequency in MHz. ICCMAX is given in mA. See Figure 8. 6. See Figures 9 through 12 for ICC test conditions. 7. For Philips North America parts when Tamb = –40°C to +85°C or Philips parts when Tamb = –40°C to +125°C, see DC Electrical Characteristics table on previous page. 8. The operating supply current is measured with all output pins disconnected; XTAL1 driven with tr = tf = 10ns; VIL = VSS + 0.5V; VIH = VCC – 0.5V; XTAL2 not connected; EA = RST = Port 0 = VCC. 9. The idle mode supply current is measured with all output pins disconnected; XTAL1 driven with tr = tf = 10ns; VIL = VSS + 0.5V; VIH = VCC – 0.5V; XTAL2 not connected; EA = Port 0 = VCC; RST = VSS. 10. The power-down current is measured with all output pins disconnected, XTAL2 not connected, EA = Port 0 = VCC; RST = VSS. 11. Under steady state (non-transient) conditions, IOL must be externally limited as follows: Maximum IOL per port pin: 15mA Maximum IOL per 8-bit port: 26mA Maximum IOL total for all outputs: 67mA 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. 12. Pin capacitance for the ceramic DIP package is 15pF maximum. |
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