Inicio > Circuitos integrados IC > CD4070BE

CD4070BE

Quad 2-input XOR gate, CMOS 3-18V, 60ns, PDIP-14

4000

Inventario efectivo

Ir a la consulta

Image for reference only

Pieza del fabricante：

CD4070BE

Paquete：

PDIP-14 (19.3 x 6.35 x 4.57mm, 2.54mm pitch, through-hole)

Marca：

Categorías de productos：

Circuitos integrados IC, Circuitos integrados de interfaz

Otras recomendaciones que pueden interesarle.

SII9396SCNUC-BAR

IS43TR16256BL-125KBLI

Descripción

Productos

The CD4070BE from Texas Instruments contains four independent 2-input Exclusive-OR (XOR) gates in a 14-pin PDIP package, implementing the ‘difference detection’ function across the 3V-18V CMOS supply range.

Especificaciones

Number of Gates	4 (quad 2-input XOR)
Technology	CD4000B CMOS
Tensión de alimentación	3V to 18V
Retardo de propagación	60ns typical @ VDD=10V
Corriente de reposo	0.01µA typical @ 25°C
Temperatura de funcionamiento	-55°C to +125°C
Paquete	PDIP-14 (19.3 x 6.35mm)

Características

Quad 2-input XOR gates
Wide supply voltage: 3V to 18V
Output HIGH when inputs differ
Near-zero quiescent current

Aplicaciones

Parity generation/checking
Binary addition (sum bit)
Comparison (inequality detection)
Controlled inversion

Introducción del producto:CD4070BE Presentación del producto

The CD4070BE from Texas Instruments contains four independent 2-input Exclusive-OR (XOR) gates. The XOR output is HIGH when the two inputs are different (one HIGH, one LOW) and LOW when both inputs are the same (both HIGH or both LOW). This ‘difference detection’ property makes the XOR gate uniquely valuable: in parity checking, XOR cascades detect whether an odd number of bits have changed; in binary addition, the XOR produces the sum bit (without carry); in comparison, XOR detects inequality between two signals; in controlled inversion, one input selects whether the other input is passed or inverted. The CD4070 is the CMOS equivalent of the TTL 7486 with the advantage of 3V-18V supply range. The BE suffix denotes the PDIP-14 package.

Principio de funcionamiento:CD4070BE Principio de funcionamiento

Each XOR gate in the CD4070BE performs Y = A ⊕ B. The output is HIGH when A and B have different logic levels, and LOW when they are the same. Truth table: (0,0)→0; (0,1)→1; (1,0)→1; (1,1)→0. Equivalently: Y = A·B’ + A’·B = (A+B)·(A’+B’)’. For controlled inversion: if input B=0, then Y=A (pass); if B=1, then Y=A’ (invert). This makes the XOR a programmable inverter: one input controls whether the other is inverted or passed through. For parity generation: cascade all data bits through XOR gates; the final output is 1 if an odd number of input bits are 1 (odd parity). For binary addition: the XOR of two bits gives the sum bit without carry (half-adder sum); adding an AND gate for the carry completes the half-adder. For comparison: XOR of two bits → 0 if equal, 1 if different; OR all XOR outputs → 0 only if all bits match.

Descripción de la clavija:CD4070BE Definición y funciones de las clavijas

Pin	Nombre	Tipo	Descripción
1	1A	Entrada	Gate 1 input A
2	1B	Entrada	Gate 1 input B
3	1Y	Salida	Gate 1 output (A XOR B)
4	2Y	Salida	Gate 2 output (A XOR B)
5	2A	Entrada	Gate 2 input A
6	2B	Entrada	Gate 2 input B
7	VSS	Potencia	Suelo
8	3A	Entrada	Gate 3 input A
9	3B	Entrada	Gate 3 input B
10	3Y	Salida	Gate 3 output (A XOR B)
11	4Y	Salida	Gate 4 output (A XOR B)
12	4A	Entrada	Gate 4 input A
13	4B	Entrada	Gate 4 input B
14	VDD	Potencia	Supply (3V to 18V)

Application Scenarios:In which products and applications isCD4070BE usado

Parity Generator: 4 data bits → 4 XOR gates cascaded; output = 1 if odd number of bits are 1 (odd parity bit)
Controlled Inverter: Data on A; control on B; Y = A when B=0; Y = A’ when B=1; programmable inversion
Comparison: Two 4-bit numbers bit-by-bit into XOR gates; OR all outputs; result = 0 if equal, 1 if any bit differs
Half Adder: XOR for sum bit (A⊕B); AND gate for carry (A·B); 1 bit of binary addition

Alternative Models:What chips are recommended as replacements for CD4070BE

Modelo	Fabricante	Diferencia clave	Paquete	Supply
CD4070BM	TI	SOIC-14 surface-mount version with identical logic function and 3-18V range	SOIC-14	3-18V
CD4070BE	TI	Through-hole DIP version for prototyping and legacy board repair	DIP-14	3-18V
HEF4070BT	NXP	Pin-compatible CMOS version with improved ESD protection and 3-15V supply	SOIC-14	3-15V
MC144070BDR2G	onsemi	Pin-compatible equivalent with RoHS compliance and AEC-Q100 automotive option	SOIC-14	3-18V
74HC86D	TI/Nexperia	HC CMOS version with higher speed and 2-6V supply for modern logic systems	SOIC-14	2-6V
74HC86N	TI/Nexperia	HC CMOS through-hole version for prototyping with 2-6V supply range	DIP-14	2-6V
74HCT86D	Nexperia	HCT version with TTL-compatible inputs for mixed 5V TTL/CMOS systems	SOIC-14	4.5-5.5V

CD4070 is the CMOS 4000-series quad 2-input exclusive-or gate operating over the wide 3-18V supply range. The HEF4070 (NXP) and MC144070 (onsemi) are direct pin-compatible equivalents. For higher speed at the cost of narrower voltage range, the 74HC86 HC/HCT families offer significantly faster propagation delay and lower power consumption at 2-6V. Surface-mount versions use the BM/M suffix (SOIC); through-hole versions use the BE suffix (DIP).