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MM74C925 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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MM74C925 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 8 page AC Electrical Characteristics TA e 25 C CL e 50 pF unless otherwise noted Symbol Parameter Conditions Min Typ Max Units fMAX Maximum Clock Frequency VCC e 5V Tj e 25 C 2 4 MHz Square Wave Clock Tj e 100 C 15 3 MHz tr tf Maximum Clock Rise or Fall Time VCC e 5V 15 m s tWR Reset Pulse Width VCC e 5V Tj e 25 C 250 100 ns Tj e 100 C 320 125 ns tWLE Latch Enable Pulse Width VCC e 5V Tj e 25 C 250 100 ns Tj e 100 C 320 125 ns tSET(CK LE) Clock to Latch Enable Set-Up Time VCC e 5V Tj e 25 C 2500 1250 ns Tj e 100 C 3200 1600 ns tLR Latch Enable to Reset Wait Time VCC e 5V Tj e 25 C0 b 100 ns Tj e 100 C0 b 100 ns tSET(R LE) Reset to Latch Enable Set-Up Time VCC e 5V Tj e 25 C 320 160 ns Tj e 100 C 400 200 ns fMUX Multiplexing Output Frequency VCC e 5V 1000 Hz CIN Input Capacitance Any Input (Note 2) 5 pF AC Parameters are guaranteed by DC correlated testing Functional Description Reset Asynchronous active high Display Select High displays output of counter Low displays output of latch Latch Enable High flow through condition Low latch condition Clock Negative edge sensitive Segment Output Current sourcing with 40 mA VOUT e VCC b 16V (typ) Also sink capability e 2 LTTL loads Digit Output Current sourcing with 1 mA VOUT e 175V Also sink capability e 2 LTTL loads Carry-Out 2 LTTL loads See carry-out waveforms Typical Performance Characteristics vs Output Voltage Typical Segment Current vs Ambient Temperature Maximum Power Dissipation Resistor Value Current vs Segment Typical Average Segment TLF5919 – 3 Note VD e Voltage across digit driver 3 |
Similar Part No. - MM74C925 |
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Similar Description - MM74C925 |
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