4-2-2. Reading Datasheets: Output Currents (IOH and IOL)

DC characteristic #2: Output currents (I(OH) and I(OL))

DC characteristic #2: Output currents (IOH and IOL)

The drive capability of the output buffer and the guaranteed output current are important when connecting a CMOS logic IC with an LSI chip.

DC characteristics of the 74VHC04FT

Example: Output current (I(OH)/I(OL)) vs output voltage (V(OH)/V(OL)) curves of the 74VHC04

Example: Output current (IOH/IOL) vs output voltage (VOH/VOL) curves of the 74VHC04

CMOS logic ICs are designed to provide almost the same drive capability at both IOH and IOL.

Chapter4 How to Read Datasheets

4. Reading Datasheets
4-1. Reading Datasheets: Absolute Maximum Ratings and Operating Ranges
4-2. Reading Datasheets: DC Electrical Characteristics
4-2-1. Reading Datasheets: Input Voltages (VIH and VIL)
4-2-3. Reading Datasheets: Input Current (IIN)
4-2-4. Reading Datasheets: Quiescent Supply Current (ICC)
4-3. Reading Datasheets: AC Electrical Characteristics
4-3-1. Reading Datasheets: Propagation Delay Times (tpLH and tpHL)
4-3-2. Reading Datasheets: Power Dissipation Capacitance (CPD)
4-4. Reading Datasheets: Input-Tolerant Function
4-5. Reading Datasheets: Output-Tolerant Function
4-6. Reading Datasheets: Power-Down Protection

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