{"product_id":"74hc161-4-bit-presettable-synchronous-binary-counter-ic-soic-16-smd-package","title":"74HC161 - 4-Bit Presettable Synchronous Binary Counter IC - SOIC-16 SMD Package","description":"\u003cp\u003eThe \u003cstrong\u003e74HC161\u003c\/strong\u003e is a synchronous presettable binary counter with an internal look-ahead carry. This device ensures synchronous operation by clocking all flip-flops simultaneously on the positive-going edge of the clock (CP). The outputs (Q0 to Q3) can be preset to HIGH or LOW. A LOW signal at the parallel enable input (PE) disables counting and loads the data from the inputs (D0 to D3) into the counter on the clock's positive edge. This preset operation occurs regardless of the levels at the count enable inputs (CEP and CET). A LOW signal at the master reset input (MR) asynchronously clears the counter, setting Q0 to Q3 to LOW.\u003c\/p\u003e\u003cp\u003eThe look-ahead carry feature simplifies the serial cascading of counters. Both CEP and CET inputs must be HIGH for counting to occur. The CET input enables the terminal count output (TC), which produces a HIGH output pulse approximately equal to a HIGH output of Q0, useful for enabling the next cascaded stage. The maximum clock frequency for cascaded counters is determined by the CP to TC propagation delay and the CEP to CP setup time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWide supply voltage range: 2.0V to 6.0V\u003c\/li\u003e\n\u003cli\u003eCMOS low power dissipation\u003c\/li\u003e\n\u003cli\u003eHigh noise immunity\u003c\/li\u003e\n\u003cli\u003eLatch-up performance exceeds 100 mA per JESD 78 Class II Level B\u003c\/li\u003e\n\u003cli\u003eCMOS input levels\u003c\/li\u003e\n\u003cli\u003eSynchronous counting and loading\u003c\/li\u003e\n\u003cli\u003eTwo count enable inputs for n-bit cascading\u003c\/li\u003e\n\u003cli\u003eAsynchronous reset\u003c\/li\u003e\n\u003cli\u003ePositive-edge triggered clock\u003c\/li\u003e\n\u003cli\u003eESD protection:\u003cul\u003e\n\u003cli\u003eHBM JESD22-A114F exceeds 2000V\u003c\/li\u003e\n\u003cli\u003eMM JESD22-A115-A exceeds 200V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpecified operating temperature range: -40°C to +85°C and -40°C to +125°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e -0.5V to +7.0V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Clamp Current:\u003c\/strong\u003e +20 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Clamp Current:\u003c\/strong\u003e +20 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Current:\u003c\/strong\u003e +25 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Current:\u003c\/strong\u003e 50 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround Current:\u003c\/strong\u003e -50 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -65°C to +150°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Power Dissipation:\u003c\/strong\u003e 500 mW\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e1 x 74HC161 - 4-Bit Presettable Synchronous Binary Counter IC - SOIC-16 SMD Package\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: Product images are for illustrative purposes only and may differ from the actual product.\u003c\/p\u003e\u003c!----\u003e","brand":"mysite","offers":[{"title":"Default Title","offer_id":46018887352491,"sku":"SMD-QC2310","price":0.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/1205\/1115\/files\/SOIC-16_SMD_Package_3c87aa2f-d262-43a9-af40-88685aede805.jpg?v=1767603447","url":"https:\/\/www.yuzxcn.com\/products\/74hc161-4-bit-presettable-synchronous-binary-counter-ic-soic-16-smd-package","provider":"Yuzx","version":"1.0","type":"link"}