Octal D-type flip-flop - nexperia
Description
74HC574; 74HCT574
Octal D-type flip-flop; positive edge-trigger; 3-state
Rev.
9 — 20 October 2022
Product data sheet
1.
General description
The 74HC574; 74HCT574 is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs.
The device features a clock (CP) and output enable (OE) inputs.
The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition.
A HIGH on OE causes the outputs to assume a high-impedance OFF-state.
Operation of the OE input does not affect the state of the flip-flops.
Inputs include clamp diodes.
This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
2.
Features and benefits
• Wide supply voltage range from 2.
0 V to 6.
0 V • CMOS low power dissipation • High noise immunity • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B • Complies with JEDEC standards:
• JESD8C (2.
7 V to 3.
6 V) • JESD7A (2.
0 V to 6.
0 V) • Input levels: • For 74HC574: CMOS level • For 74HCT574: TTL level • 3-state non-inverting outputs for bus oriented applications • 8-bit positive, edge-triggered register • Common 3-state output enable input • ESD protection: • • HBM JESD22-A114F exceeds 2 kV • MM JESD22-A115-A exceeds 200 V • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3.
Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range
74HC574D 74HCT574D
-40 °C to +125 °C
74HC574PW 74HCT574PW
-40 °C to +125 °C
74HC574BQ
-40 °C to +125 °C
Name SO20
TSSOP20
DHVQFN20
Description
plastic small outline package; 20 leads; body width 7.
5 mm
plastic thin shrink small outline package; 20 leads; body width 4.
4 mm
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.
5 × 4.
5 × 0.
85 mm
Version SOT163-1
SOT360-1
SOT764-1
Nexperia
4.
Functional diagram
74HC574; 74HCT574
Octal D-type flip-flop; positive edge-trigger...
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