74HCT574D NXP Semiconductors, 74HCT574D Datasheet - Page 4

• Manufacturer Part Number: 74HCT574D
• Description: Flip Flop D-Type Bus Interface Pos-Edge 3-ST 1-Element 20-Pin SO Bulk
• Manufacturer: NXP Semiconductors

Specifications of 74HCT574D

• Package: 20SO
• Logic Function: D-Type Bus Interface
• Logic Family: HCT
• Number Of Element Outputs: 8
• Output Signal Type: Single-Ended
• Output Type: 3-State
• Number Of Output Enables Per Element: 1
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: -40 to 125 °C
• Flip-flop Type: D
• Propagation Delay: 18ns
• Frequency: 123MHz
• Output Current: 6mA
• Supply Voltage Range: 4.5V To 5.5V
• Logic Case Style: SOIC
• No. Of Pins: 20
• Operating: RoHS Compliant
• Trigger Type: Positive Edge
• Ic Output Type: Tri State Non Inverted
• Rohs Compliant: Yes

Philips Semiconductors
December 1990
Octal D-type flip-flop; positive edge-trigger;
3-state
Fig.4 Functional diagram.
Fig.5 Logic diagram.
FUNCTION TABLE
Notes
1. H = HIGH voltage level
load and read
register
load register and
disable outputs
OPERATING
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH
L = LOW voltage level
l = LOW voltage level on set-up time prior to the LOW-to-HIGH
Z = HIGH impedance OFF-state
MODES
= LOW-to-HIGH clock transition
CP transition
CP transition
4
OE
H
H
L
L
INPUTS
CP
D
h
h
l
l
n
FLIP-FLOPS
INTERNAL
74HC/HCT574
H
H
L
L
Product specification
OUTPUTS
Q
0
to Q
H
L
Z
Z
7