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Toshiba Electronic Components Datasheet

TC74ACT521P Datasheet

8-Bit Equality Comparator

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TC74ACT521P/F
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74ACT521P, TC74ACT521F
8-Bit Equality Comparator
The TC74ACT521 is an advanced high speed CMOS 8-BIT
DIGITAL COMPARATOR fabricated with silicon gate and
double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
This device may be used as a level converter for interfacing
TTL or NMOS to High Speed CMOS. The inputs are compatible
with TTL, NMOS and CMOS output voltage levels.
It compares two 8-bit binary or BCD words applied inputs
P0~P7, and inputs Q0~Q7, and indicates whether or not they are
equal.
A signal active low enable is provided to facilitate cascading of
several packages to compare of words greater than 8 bits.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
High speed: tpd = 6.4 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
Compatible with TTL outputs: VIL = 0.8 V (max)
VIH = 2.0 V (min)
Symmetrical output impedance: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω
transmission lines.
Balanced propagation delays: tpLH ∼− tpHL
Pin and function compatible with 74F521
Pin Assignment
TC74ACT521P
TC74ACT521F
Weight
DIP20-P-300-2.54A
SOP20-P-300-1.27A
: 1.30 g (typ.)
: 0.22 g (typ.)
Start of commercial production
1989-11
1
2014-03-01


Toshiba Electronic Components Datasheet

TC74ACT521P Datasheet

8-Bit Equality Comparator

No Preview Available !

IEC Logic Symbol
Truth Table
Inputs
P, Q G
P=Q L
PQ L
X
H
Output
P=Q
L
H
H
X: Don’t care
System Diagram
TC74ACT521P/F
2
2014-03-01


Part Number TC74ACT521P
Description 8-Bit Equality Comparator
Maker Toshiba
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TC74ACT521P Datasheet PDF






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