74VHC574FT データシートの表示（PDF） - Toshiba

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74VHC574FT

Octal D-Type Flip Flop with 3-State Outputs

Toshiba 

CMOS Digital Integrated Circuits Silicon Monolithic

74VHC574FT

74VHC574FT

1. Functional Description

• Octal D-Type Flip Flop with 3-State Outputs

2. General

The 74VHC574FT is an advanced high speed CMOS OCTAL FLIP-FLOP with 3-STATE OUTPUT fabricated

with silicon gate C2MOS technology.

It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS

low power dissipation.

This 8-bit D-type flip-flop is controlled by a clock input (CK) and an output enable input (OE).

When the OE input is high, the eight outputs are in a high impedance state.

An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply

voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up.

This circuit prevents device destruction due to mismatched supply and input voltages.

3. Features

(1) High speed: fMAX = 180 MHz (typ.) at VCC = 5 V

(2) Low power dissipation: ICC = 4 µA (max) at Ta = 25

(3) High noise immunity: VNIH = VNIL = 28% VCC (min)

(4) Power-down protection is provided on all inputs.

(5) Balanced propagation delays: tPLH ≈ tPHL

(6) Wide operating voltage range: VCC(opr) = 2 V to 5.5 V

(7) Low noise: VOLP = 1.0 V (max)

(8) Pin and function compatible with the 74 series

(74AC/HC/AHC/LV etc.) 574 type.

4. Packaging

TSSOP20B

1

2013-02-12

Rev.1.0

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