Product Summary

The 74HC574D is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard no. 7A. The 74HC574D is a octal D-type flip-flop featuring separate D-type inputs for each flip-flop and non-inverting 3-state outputs for bus oriented applications. A clock (CP) and an output enable (OE) input are common to all flip-flops. The 8 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 CP transition. When OE is LOW, the contents of the 8 flip-flops are available at the outputs.

Parametrics

74HC574D absolute maximum ratings: (1)tPHL/ tPLH propagation delay CP to Qn CL = 15 pF; VCC=5 V: 14ns; (2)fmax maximum clock frequency: 123MHz; (3)CI input capacitance: 3.5pF; (4)CPD power dissipation capacitance per flip-flop: 22 pF.

Features

74HC574D features: (1)3-state non-inverting outputs for bus oriented applications; (2)8-bit positive edge-triggered register; (3)Common 3-state output enable input; (4)Independent register and 3-state buffer operation; (5)Output capability: bus driver; (6)ICC category: MSI.

Diagrams

74HC574D Pin configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
74HC574D
74HC574D

NXP Semiconductors

Flip Flops OCTAL D F/F POS-EDGE 3STATE

Data Sheet

Negotiable 
74HC574D,652
74HC574D,652

NXP Semiconductors

Flip Flops OCTAL D F/F POS-EDGE

Data Sheet

0-1: $0.09
1-25: $0.08
25-100: $0.08
100-250: $0.07
74HC574DB,112
74HC574DB,112

NXP Semiconductors

Flip Flops OCTAL D F-F POS-EDGE

Data Sheet

0-1: $0.22
1-25: $0.20
25-100: $0.19
100-250: $0.18
74HC574DB,118
74HC574DB,118

NXP Semiconductors

Flip Flops OCTAL D-TYPE POS EDGE 3-S

Data Sheet

0-1: $0.24
1-25: $0.22
25-100: $0.19
100-250: $0.17
74HC574D,653
74HC574D,653

NXP Semiconductors

Flip Flops OCTAL D-TYPE POS EDGE 3-S

Data Sheet

0-1: $0.09
1-25: $0.08
25-100: $0.08
100-250: $0.07
74HC574DB
74HC574DB

NXP Semiconductors

Flip Flops OCTAL D F-F POS-EDGE

Data Sheet

Negotiable 
74HC574DTR2G
74HC574DTR2G

ON Semiconductor

Flip Flops OCTAL D TYPE 3 STATE NONINVERTNG FLIPFLOP

Data Sheet

0-2500: $0.12
2500-3100: $0.12
3100-5000: $0.11
5000-10000: $0.10