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CD4030BE

Quad 2-input XOR gate, CMOS 3-18V, 65ns, PDIP-14

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制造商零件：

CD4030BE

包装：

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

品牌：

产品类别：

集成电路 IC, 接口集成电路

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说明

产品概览

The CD4030BE from Texas Instruments contains four independent 2-input Exclusive-OR (XOR) gates — the CMOS XOR gate for 3V-18V systems, providing Y = A ⊕ B in a 14-pin PDIP package.

主要规格

Number of Gates	4 (quad 2-input XOR)
Technology	CD4000B CMOS
电源电压	3V to 18V
传播延迟	65ns typical @ VDD=10V, CL=50pF
输出电流	6.8mA sink / -6.8mA source @ VDD=10V
静态电流	0.01µA typical @ 25°C
工作温度	-55°C to +125°C
包装	PDIP-14 (19.3 x 6.35mm)

特点

Quad 2-input XOR gates
Output HIGH when inputs differ, LOW when inputs match
True/complement element: one input controls polarity
3V-18V wide supply range
Near-zero quiescent current

应用

Parity generators and checkers
Logical comparators
Adders and subtractors
True/complement signal control

产品介绍：CD4030BE 产品介绍

The CD4030BE from Texas Instruments contains four independent 2-input Exclusive-OR (XOR) gates. Each gate implements Y = A ⊕ B = ĀB + AB̄; the output is HIGH when the two inputs are different, and LOW when they are the same. The XOR function is fundamental in digital logic: it is the building block for parity generation, binary addition, and comparison circuits. A key property of the XOR gate is its use as a true/complement element: when one input is LOW, the output equals the other input (pass-through); when one input is HIGH, the output is the complement of the other input (inversion). This makes the XOR gate a controllable inverter/buffer — useful for signal polarity switching and modulator circuits. The CD4030 is the original CMOS XOR gate; the CD4070 is a newer equivalent with identical functionality. The BE suffix denotes the PDIP-14 package.

工作原理：CD4030BE 工作原理

Each XOR gate in the CD4030BE performs Y = A ⊕ B. Truth table: A=0,B=0 → Y=0; A=0,B=1 → Y=1; A=1,B=0 → Y=1; A=1,B=1 → Y=0. The output is HIGH when exactly one input is HIGH (odd parity). As a true/complement element: when B=0, Y=A (pass); when B=1, Y=Ā (invert). B acts as a polarity control. For parity generation: cascade XOR gates — Y1 = A⊕B, Y2 = Y1⊕C, Y3 = Y2⊕D; Y3 = A⊕B⊕C⊕D (even parity of 4 bits). For binary addition: Sum = A⊕B, Carry = A·B; two XOR gates plus an AND gate form a half-adder. For comparison: A⊕B = 0 when A=B, 1 when A≠B; OR multiple XOR outputs for multi-bit inequality detection. The CD4030 and CD4070 have the same function; the CD4030 is the original Harris design and the CD4070 is the TI redesign, both are interchangeable.

引脚说明：CD4030BE 引脚定义和功能

针脚	名称	类型	说明
1	1A	输入	Gate 1 input A
2	1B	输入	Gate 1 input B
3	1Y	输出	Gate 1 output (A⊕B)
4	2A	输入	Gate 2 input A
5	2B	输入	Gate 2 input B
6	2Y	输出	Gate 2 output (A⊕B)
7	VSS	电源	地面
8	3Y	输出	Gate 3 output (A⊕B)
9	3A	输入	Gate 3 input A
10	3B	输入	Gate 3 input B
11	4Y	输出	Gate 4 output (A⊕B)
12	4A	输入	Gate 4 input A
13	4B	输入	Gate 4 input B
14	VDD	电源	Supply (3V to 18V)

Application Scenarios:In which products and applications isCD4030BE 中古

4-Bit Parity Checker: 4 data bits → cascaded XOR gates (3 of 4); output = 1 if odd number of bits are 1; even parity checker
True/Complement Element: Data → A; control → B; Y = data when B=0; Y = NOT(data) when B=1; polarity switcher
Half Adder: XOR → Sum = A⊕B; AND → Carry = A·B; CD4030 (XOR) + CD4081 (AND) = half adder
Equality Detector: A⊕B for each bit pair; OR all XOR outputs; result = 0 if equal, 1 if any bit differs

Alternative Models:What chips are recommended as replacements for CD4030BE

模型	制造商	主要区别	包装	Supply
CD4030BM	TI	SOIC-14 surface-mount version with identical logic function and 3-18V range	SOIC-14	3-18V
CD4030BE	TI	Through-hole DIP version for prototyping and legacy board repair	DIP-14	3-18V
HEF4030BT	恩智浦	Pin-compatible CMOS version with improved ESD protection and 3-15V supply	SOIC-14	3-15V
MC144030BDR2G	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

CD4030 is the CMOS 4000-series quad 2-input exclusive-or gate operating over the wide 3-18V supply range. The HEF4030 (NXP) and MC144030 (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).

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