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W78C438CP-40 Datasheet(PDF) 11 Page - Winbond |
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W78C438CP-40 Datasheet(HTML) 11 Page - Winbond |
11 / 16 page W78C438C Publication Release Date: July 1998 - 11 - Revision A1 DC CHARACTERISTICS VDD −VSS = 5V ±10%, TA = 25° C, FOSC = 20 MHz, unless otherwise specified. PARAMETER SYM. TEST CONDITIONS MIN. TYP. MAX. UNIT Oper. Voltage VDD 4.5 5 5.5 V Oper. Current IDD * No load - - 20 mA Idle Current IIDLE Program idle mode - - 7 mA Pwdn Current IPWDN Program power-down mode - - 50 µA Input Leakage Current ILK1 INT2 , INT3 Internal pull-high Notes 1, 2 -300 - +10 µA Input Leakage Current ILK2 RESET Internal pull-low Notes 1, 2 -10 - +300 µA Input Leakage Current ILK3 EA , Port 0, DP4 Note 1 -10 - +10 µA Input Leakage Current ILK4 P1, P2, P3, P8 Note 1 -50 - +10 µA Output Low Voltage VOL1 IOL1 = 2 mA (Port 1, 2, 3, 8) - - 0.45 V Output High Voltage VOH1 IOH1 = -100 µA (Port 1, 2, 3, 8) 2.4 - - V Output Low Voltage VOL2 IOL2 = 4mA Note 3 (ALE, PSEN, P0, DP4) - - 0.45 V Output High Voltage VOH2 IOH2 = -400 µA Note 3 (ALE, PSEN, P0, DP4) 2.4 - - V Output Low Voltage VOL3 IOL2 = 2 mA (AP5, AP6, AP7) - - 0.45 V Output High Voltage VOH3 IOH2 = -100 µA (AP5, AP6, AP7) 2.4 - - V Input Voltage VILT VDD = 5V ±10% 0 - 0.8 V Input Voltage VIHT VDD = 5V ±10% 2.4 - Note 4 V Input Voltage VILC VDD = 5V ±10%, XTAL1 Note 5 0 - 0.8 V Input Voltage VIHC VDD = 5V ±10%, XTAL1 Note 5 3.5 - Note 4 V Input Voltage VILR VDD = 5V ±10%, RESET Note 5 0 - 0.8 V Input Voltage VIHR VDD = 5V ±10%, RESET Note 5 2.4 - Note 4 V Notes: 1. 0 < VIN < VDD, for INT2 , INT3 , RESET, EA , Port 0, DP4, P1, P2, P3 and P8 inputs in leakage. 2. Using an internal pull low/high resistor (approx. 30K). 3. ALE, PSEN , P0 and DP4 in external program or data access mode. 4. The maximum input voltage is VDD +0.2V. 5. XTAL1 is a CMOS input and RESET is a Schmitt trigger input. |
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Similar Description - W78C438CP-40 |
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