{"id":7983,"date":"2026-06-28T06:25:43","date_gmt":"2026-06-28T06:25:43","guid":{"rendered":"https:\/\/materialparts.com\/cd4070be\/"},"modified":"2026-06-28T11:44:43","modified_gmt":"2026-06-28T11:44:43","slug":"cd4070be","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/cd4070be\/","title":{"rendered":"CD4070BE"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

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.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n
Number of Gates<\/td>\n4 (quad 2-input XOR)<\/td>\n<\/tr>\n
Technology<\/td>\nCD4000B CMOS<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3V to 18V<\/td>\n<\/tr>\n
\u4f20\u64ad\u5ef6\u8fdf<\/td>\n60ns typical @ VDD=10V<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n0.01\u00b5A typical @ 25\u00b0C<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nPDIP-14 (19.3 x 6.35mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Quad 2-input XOR gates<\/li>\n
  • Wide supply voltage: 3V to 18V<\/li>\n
  • Output HIGH when inputs differ<\/li>\n
  • Near-zero quiescent current<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Parity generation\/checking<\/li>\n
    • Binary addition (sum bit)<\/li>\n
    • Comparison (inequality detection)<\/li>\n
    • Controlled inversion<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview 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. Key Specifications Number of Gates 4 (quad 2-input XOR) Technology CD4000B CMOS Supply Voltage 3V to 18V Propagation Delay 60ns typical @ VDD=10V Quiescent Current […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[138],"class_list":["post-7983","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad 2-input XOR gate, CMOS 3-18V, 60ns, PDIP-14","date_code":"","package_case":"PDIP-14 (19.3 x 6.35 x 4.57mm, 2.54mm pitch, through-hole)","in_stock":4000,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/cd4070b.pdf","price":"$0.35 @ 1ku","product_introduction":"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.","working_principle":"Each XOR gate in the CD4070BE performs Y = A \u2295 B. The output is HIGH when A and B have different logic levels, and LOW when they are the same. Truth table: (0,0)\u21920; (0,1)\u21921; (1,0)\u21921; (1,1)\u21920. Equivalently: Y = A\u00b7B' + A'\u00b7B = (A+B)\u00b7(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 \u2192 0 if equal, 1 if different; OR all XOR outputs \u2192 0 only if all bits match.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>1A<\/td>Input<\/td>Gate 1 input A<\/td><\/tr>\n
      2<\/td>1B<\/td>Input<\/td>Gate 1 input B<\/td><\/tr>\n
      3<\/td>1Y<\/td>Output<\/td>Gate 1 output (A XOR B)<\/td><\/tr>\n
      4<\/td>2Y<\/td>Output<\/td>Gate 2 output (A XOR B)<\/td><\/tr>\n
      5<\/td>2A<\/td>Input<\/td>Gate 2 input A<\/td><\/tr>\n
      6<\/td>2B<\/td>Input<\/td>Gate 2 input B<\/td><\/tr>\n
      7<\/td>VSS<\/td>Power<\/td>Ground<\/td><\/tr>\n
      8<\/td>3A<\/td>Input<\/td>Gate 3 input A<\/td><\/tr>\n
      9<\/td>3B<\/td>Input<\/td>Gate 3 input B<\/td><\/tr>\n
      10<\/td>3Y<\/td>Output<\/td>Gate 3 output (A XOR B)<\/td><\/tr>\n
      11<\/td>4Y<\/td>Output<\/td>Gate 4 output (A XOR B)<\/td><\/tr>\n
      12<\/td>4A<\/td>Input<\/td>Gate 4 input A<\/td><\/tr>\n
      13<\/td>4B<\/td>Input<\/td>Gate 4 input B<\/td><\/tr>\n
      14<\/td>VDD<\/td>Power<\/td>Supply (3V to 18V)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Parity Generator:<\/strong> 4 data bits \u2192 4 XOR gates cascaded; output = 1 if odd number of bits are 1 (odd parity bit)<\/li>\n
      • Controlled Inverter:<\/strong> Data on A; control on B; Y = A when B=0; Y = A' when B=1; programmable inversion<\/li>\n
      • Comparison:<\/strong> Two 4-bit numbers bit-by-bit into XOR gates; OR all outputs; result = 0 if equal, 1 if any bit differs<\/li>\n
      • Half Adder:<\/strong> XOR for sum bit (A\u2295B); AND gate for carry (A\u00b7B); 1 bit of binary addition<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Supply<\/th><\/tr>\n
        CD4070BM<\/td>TI<\/td>SOIC-14 surface-mount version with identical logic function and 3-18V range<\/td>SOIC-14<\/td>3-18V<\/td><\/tr>\n
        CD4070BE<\/td>TI<\/td>Through-hole DIP version for prototyping and legacy board repair<\/td>DIP-14<\/td>3-18V<\/td><\/tr>\n
        HEF4070BT<\/td>NXP<\/td>Pin-compatible CMOS version with improved ESD protection and 3-15V supply<\/td>SOIC-14<\/td>3-15V<\/td><\/tr>\n
        MC144070BDR2G<\/td>onsemi<\/td>Pin-compatible equivalent with RoHS compliance and AEC-Q100 automotive option<\/td>SOIC-14<\/td>3-18V<\/td><\/tr>\n
        74HC86D<\/td>TI\/Nexperia<\/td>HC CMOS version with higher speed and 2-6V supply for modern logic systems<\/td>SOIC-14<\/td>2-6V<\/td><\/tr>\n
        74HC86N<\/td>TI\/Nexperia<\/td>HC CMOS through-hole version for prototyping with 2-6V supply range<\/td>DIP-14<\/td>2-6V<\/td><\/tr>\n
        74HCT86D<\/td>Nexperia<\/td>HCT version with TTL-compatible inputs for mixed 5V TTL\/CMOS systems<\/td>SOIC-14<\/td>4.5-5.5V<\/td><\/tr>\n<\/table>\n

        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).<\/p>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7983"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7983\/revisions"}],"predecessor-version":[{"id":8153,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7983\/revisions\/8153"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7983"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}