Octal D-Type Flip-Flop
TC74HCT574AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HCT574AP, TC74HCT574AF
Octal D-Type Flip-...
Description
TC74HCT574AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HCT574AP, TC74HCT574AF
Octal D-Type Flip-Flop with 3-State Output
The TC74HCT574A is a 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 LSTTL while maintaining the CMOS low power dissipation.
Its inputs are compatible with TTL, NMOS, and CMOS output voltage levels.
Its 8-bit D-type flip-flops is controlled by a clock input (CK) and an output enable input ( OE ).
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
High speed: fmax = 62 MHz (typ.) at VCC = 5 V Low power dissipation: ICC = 4 μA (max) at Ta = 25°C Compatible with TTL outputs: VIL = 0.8 V (min)
VIH = 2.0 V (max) Output drive capability: 15 LSTTL loads Symmetrical output impedance: |IOH| = IOL = 6 mA (min) Balanced propagation delays: tpLH ∼− tpHL Pin and function compatible with 74LS574
Pin Assignment
TC74HCT574AP
TC74HCT574AF
Weight DIP20-P-300-2.54A SOP20-P-300-1.27A
: 1.30 g (typ.) : 0.22 g (typ.)
Start of commercial production
1988-11
1
2014-03-01
IEC Logic Symbol
Truth Table
Inputs
OE CK D
H
X
X
L
X
L
L
L
H
Output Q Z Qn L H
X: Don’t care Z: High impedance Qn: No change
System Diagram
TC74HCT574AP/AF
2
2014-03-01
TC74HCT574AP/AF
Absolute Maximum Ratings (Note 1)
Characteristics
Symbol
Rating
Unit
Supply voltage range DC ...
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