74HC595
Full part number: 74HC595D
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the 74HC595 does
The 74HC595D is a high-speed CMOS 8-bit serial shift register with storage register and low/high-impedance outputs. It operates across a 3.0-5.0 V supply range with a maximum clock frequency exceeding 25 MHz. The device features 8 parallel data outputs and supports cascading via a serial output. Engineers typically use it for driving P10 constant-voltage LED single-color displays. The component comes in an SOP-16 package and handles operating temperatures from -40 to +85 °C.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | — | 4 µA | VCC(V) = 6.0; 13. Electrical Characteristics | Toshiba datasheet, p. 6 — 13. Electrical Characteristics |
| output current | 63 mA | — | 75 mA | VDD = 5.0V; q0; 直流特性 | Fuman datasheet, p. 3 — 直流特性 |
| supply voltage range | 2 V | — | 6 V | —; 12. Operating Ranges (Note) | Toshiba datasheet, p. 5 — 12. Operating Ranges (Note) |
| operating temperature | -40 °C | — | 125 °C | —; 12. Operating Ranges (Note) | Toshiba datasheet, p. 5 — 12. Operating Ranges (Note) |
| clock frequency | 35 MHz | 55 MHz | — | —; 13.7. AC Characteristics | Toshiba datasheet, p. 11 — 13.7. AC Characteristics |
| power dissipation (abs max) | — | — | 500 mW | (note 1); 11. Absolute Maximum Ratings (Note) | Toshiba datasheet, p. 4 — 11. Absolute Maximum Ratings (Note) |
| input capacitance | — | 3 pF | — | —; 13.7. AC Characteristics | Toshiba datasheet, p. 12 — 13.7. AC Characteristics |
| propagation delay | — | 60 ns | 150 ns | See 14. AC Waveform, Fig. 14.1; CL(PF) = 50; VCC(V) = 2.0; propagation(rck-qn); 13.7. AC Characteristics | Toshiba datasheet, p. 12 — 13.7. AC Characteristics |
| rise time | 0 s | — | 50 µs | —; 12. Operating Ranges (Note) | Toshiba datasheet, p. 5 — 12. Operating Ranges (Note) |
| output voltage high | 4.18 V | 4.31 V | — | IOH = -6 mA; VCC(V) = 4.5; 13. Electrical Characteristics | Toshiba datasheet, p. 6 — 13. Electrical Characteristics |
| output voltage low | — | 170 mV | 260 mV | IOL = 6 mA; VCC(V) = 4.5; 13. Electrical Characteristics | Toshiba datasheet, p. 6 — 13. Electrical Characteristics |
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Frequently asked questions
What is the clock frequency for the 74HC595D under AC Characteristics conditions —; 13.7?
The clock frequency is 55 MHz.
What is the input capacitance of the 74HC595D?
The input capacitance is 3 pF.
What is the maximum operating temperature for the 74HC595D under Operating Ranges (Note)?
The maximum operating temperature is 125 °C.
What is the output current of the 74HC595D when VDD = 5.0V and q0; 直流特性?
The output current is 75 mA.
What is the output voltage high (VOH) when IOH = -6 mA and VCC = 4.5 V?
The output voltage high is 4.31 V.
What is the output voltage low (VOL) when IOL = 6 mA, VCC = 4.5 V, and TA = 13 °C?
The output voltage low is 170 mV.
What is the absolute maximum power dissipation for the 74HC595D?
The absolute maximum power dissipation is 500 mW (note 1).
What is the propagation delay for rck-qn?
The propagation delay is 60 ns when CL(PF) = 50 and VCC(V) = 2.0, as shown in 14. AC Waveform, Fig. 14.1.
What is the quiescent current when VCC(V) = 6.0; 13?
The quiescent current is 4 µA.
What is the rise time under Operating Ranges (Note)?
The rise time is 50 µs.
What is the supply voltage range for the 74HC595D under Operating Ranges (Note)?
The supply voltage range is 6 V.