\n| Paquete<\/td>\n | PDIP-20 (24.33 x 6.35mm)<\/td>\n<\/tr>\n<\/table>\nCaracter\u00edsticas<\/h2>\n\n- 8-bit non-inverting buffer with 3-state outputs<\/li>\n
- Dual active-low output enable (both must be low to enable)<\/li>\n
- Wide 2V to 6V operating voltage<\/li>\n
- High-impedance outputs when disabled<\/li>\n
- HC CMOS low power consumption<\/li>\n
- Directly drives bus lines<\/li>\n
- Suitable for driving heavy capacitive loads<\/li>\n<\/ul>\n
Aplicaciones<\/h2>\n\n- Bus driver and buffer<\/li>\n
- Memory address driver<\/li>\n
- Clock driver and buffer<\/li>\n
- Microprocessor I\/O port isolation<\/li>\n
- General-purpose logic buffer<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"
Product Overview The SN74HC541N is an octal buffer\/line driver with 3-state outputs from Texas Instruments, featuring output enable and HC CMOS technology in a 20-pin PDIP package. Key Specifications Number of Channels 8 (octal buffer) Logic Family HC (High-speed CMOS) Supply Voltage 2V to 6V Output Type 3-state (high-impedance when disabled) Output Enable 2 active-low […]<\/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-7892","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-ti"],"acf":{"brief_explanation":"Octal buffer\/driver, 3-state, 2 OE pins, HC CMOS 2-6V, PDIP-20","date_code":"","package_case":"PDIP-20 (24.33 x 6.35 x 5.08mm, 2.54mm pitch, through-hole)","in_stock":9500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/sn74hc541.pdf","price":"$0.45 @ 1ku","product_introduction":"The SN74HC541N from Texas Instruments is an octal buffer and line driver with 3-state outputs and dual active-low output enable pins in a 20-pin PDIP through-hole package. The device provides non-inverting buffering of 8 data lines. The two output enable pins (OE1 and OE2) are both active-low; both must be low to enable the outputs. When either OE pin is high, all outputs enter the high-impedance state, allowing connection to shared bus lines. The HC (High-speed CMOS) technology provides 2V to 6V operating voltage range with low quiescent current. The \u00b16mA output drive at 5V can drive moderate capacitive loads on bus lines. The N suffix denotes the PDIP-20 through-hole package.","working_principle":"The SN74HC541N contains eight identical non-inverting buffer elements with a common output enable control. Each buffer passes the input signal to the output without inversion. The output enable logic ANDs the two active-low OE pins: when both OE1 and OE2 are low, the outputs follow the inputs (after the propagation delay). When either OE1 or OE2 is high, all eight outputs enter the high-impedance (3-state) state, effectively disconnecting the buffer from the bus. This allows multiple buffers to share a common bus without contention, as only one buffer is enabled at a time. The non-inverting nature preserves the original signal polarity, making the device suitable for address and data bus buffering where signal integrity must be maintained.","pin_description":" \n| Pin<\/th> | Name<\/th> | Type<\/th> | Description<\/th><\/tr>\n |
|---|
| 1<\/td> | OE1<\/td> | Input<\/td> | Output enable 1 (active low)<\/td><\/tr>\n | | 2-9<\/td> | 1A-8A<\/td> | Input<\/td> | Data inputs (8 bits)<\/td><\/tr>\n | | 10<\/td> | GND<\/td> | Power<\/td> | Ground<\/td><\/tr>\n | | 11-18<\/td> | 8Y-1Y<\/td> | Output<\/td> | Data outputs (8 bits, 3-state)<\/td><\/tr>\n | | 19<\/td> | OE2<\/td> | Input<\/td> | Output enable 2 (active low)<\/td><\/tr>\n | | 20<\/td> | VCC<\/td> | Power<\/td> | Supply (2V to 6V)<\/td><\/tr>\n<\/table>\n SN74HC541N uses the PDIP-20 package: VCC at Pin 20, GND at Pin 10. Eight non-inverting buffer\/line drivers: inputs on Pins 2-9, outputs on Pins 18-11. Two active-low output enable controls: OE1=Pin 1, OE2=Pin 19. Both enables must be LOW for outputs to be active; either enable HIGH forces all outputs to high impedance. The dual-enable architecture allows simple expansion to wider bus widths. Unlike the 74HC245 transceiver, the 541 is unidirectional (input to output only) with 3-state outputs. Output drive capability is \u00b16mA at 5V. For bidirectional version, use SN74HC245N. For inverting buffer, use SN74HC540N (same pinout, inverted outputs).<\/p>","application_scenarios":" \n- Bus Driving:<\/strong> 3-state outputs connect to shared address\/data buses; dual OE allows independent enable from two controllers<\/li>\n
- Memory Interface:<\/strong> Drives memory address lines with sufficient fan-out for multiple memory chips<\/li>\n
- Clock Buffer:<\/td> Non-inverting buffer distributes clock signals without phase inversion<\/li>\n
- I\/O Isolation:<\/strong> High-impedance mode isolates MCU pins from bus during reset or debug<\/li>\n
- Logic Level:<\/strong> 2V-6V range bridges between 3.3V and 5V systems (check VCC compatibility)<\/li>\n<\/ul>","alternative_models":"
\n| Model<\/th> | Manufacturer<\/th> | Key Difference<\/th> | Package<\/th> | Supply<\/th><\/tr>\n |
|---|
| 74HC541D<\/td> | TI\/Nexperia<\/td> | CMOS version with wide 2-6V supply range, lower power consumption and higher noise immunity<\/td> | SOIC-20<\/td> | 2-6V CMOS<\/td><\/tr>\n | | 74HC541N<\/td> | TI\/Nexperia<\/td> | Through-hole DIP version of HC family for prototyping and repair<\/td> | DIP-20<\/td> | 2-6V CMOS<\/td><\/tr>\n | | 74HCT541D<\/td> | TI\/Nexperia<\/td> | CMOS with TTL-compatible input levels, ideal for mixing with LS devices at 5V<\/td> | SOIC-20<\/td> | 4.5-5.5V TTL-in<\/td><\/tr>\n | | 74HCT541N<\/td> | TI\/Nexperia<\/td> | Through-hole DIP version of HCT family for prototyping and repair<\/td> | DIP-20<\/td> | 4.5-5.5V TTL-in<\/td><\/tr>\n | | 74LVC541D<\/td> | TI\/Nexperia<\/td> | Low-voltage CMOS for 1.65-3.6V modern logic with 24mA output drive and bus-hold inputs<\/td> | SOIC-20<\/td> | 1.65-3.6V CMOS<\/td><\/tr>\n | | 74LVC541N<\/td> | TI\/Nexperia<\/td> | Through-hole DIP version of LVC family for prototyping and repair<\/td> | DIP-20<\/td> | 1.65-3.6V CMOS<\/td><\/tr>\n<\/table>\n The 74541 is a Octal Buffer\/Driver with 3-State Output. Family variants span from the original LS TTL (5V only) to modern LVC\/AUP (down to 0.8V). HC and HCT versions offer 2-6V CMOS operation with HCT providing TTL-compatible input thresholds for mixed 5V systems. CD4000-series equivalents offer the widest 3-18V supply range at the cost of lower switching speed. DIP packages (N suffix) are through-hole; SOIC (D suffix) and TSSOP are surface-mount.<\/p>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=7892"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7892\/revisions"}],"predecessor-version":[{"id":8204,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7892\/revisions\/8204"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7892"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | | |