MC14530B IC

MC14530B
IC

The MC14530B is a dual five-input majoritylogic gate implemented in CMOS. It evaluates five logic inputs (AE) and a control input (W), outputting 1 when three or more of AE are 1, then gating that result with W. Conversely, it outputs 0 when three or more inputs are 0, regardless of W. Diode protection on every input guards against static discharge, and the device can directly drive two low-power TTL loads or one low-power SchottkyTTL load.

Constructed with complementary P-channel and N-channel enhancement-mode MOSFETs, the MC14530B features matched pull-up and pull-down networks for balanced rise/fall times. Its high-impedance inputs accept voltages from 0.5 V up to VDD+0.5 V, while output stages source and sink up to 10 mA. A wide supply range (3 V to 18 V) allows flexible system integration. Unused inputs must be tied to VSS or VDD; unused outputs remain open.

By embedding majority logic in a single 16-pin package, the MC14530B simplifies both combinational and sequential designsreducing component count compared to discrete gates. Its protection circuitry and broad voltage tolerance enhance reliability in noisy or mixed-voltage environments. Typical applications include custom flip-flops, multivibrators, and programmablelogic modules where compact, high-fan-in logic functions are required.

Features:

Dual five-input majoritylogic gates (inputs AE, control W).

Diode protection on all inputs.

Supply voltage range: 3.0 V to 18 V.

Drives two low-power TTL or one low-power Schottky-TTL load.

High-impedance inputs (0.5 V to VDD+0.5 V).

CMOS construction for low quiescent current.

Balanced P- and N-channel networks for matched rise/fall times.

16-pin PDIP, CDIP, or SOIC package.

Specifications:

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

DC Supply Voltage:

VDD

0.5

18.0

V

Input/Output Voltage (DC/Transient):

VIN, VOUT

VSS Vin/Vout VDD

0.5

VDD+0.5

V

Input/Output Current (per pin):

IIN, IOUT

DC or transient

10

+10

mA

Power Dissipation (per package):

PD

Ta = 25 C

500

mW

Storage Temperature:

Tstg

65

+150

C

Lead Soldering Temperature (8 s):

TL

260

C

Applications:

Coincident Flip-Flop.

Astable Multivibrators.

Sequential Logic Circuits.

Basic Combinational Functions (5-input majority, weighted inputs).

Correlation and Sampling Logic.

Package Contents:

1x
MC14530B IC

Data sheet