الصفحة الرئيسية > المتحكمات الدقيقة والمعالجات > معالجات الإشارات الرقمية (DSP) > 74HC541D

74HC541D

Octal buffer/line driver, 3-state, non-inverting, SOIC-20

3500

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جزء الشركة المصنعة ： جزء الشركة المصنعة

74HC541D

الحزمة ： الحزمة

SOIC-20 / SOT163-1 (12.8×7.5×2.65 mm, 1.27mm pitch)

الوصف

نظرة عامة على المنتج

The 74HC541D from Nexperia is an octal non-inverting buffer/line driver with 3-state outputs in an SOIC-20 package. Two active-LOW output enable inputs (OE1, OE2) control all eight outputs. Inputs include clamp diodes for overvoltage interfacing. The data flow-through pinout (inputs on one side, outputs on the other) simplifies PCB layout for bus driving and buffering applications.

المواصفات الرئيسية

Logic Function	Octal non-inverting buffer/line driver, 3-state
جهد الإمداد	2.0V to 6.0V
تأخير الانتشار	10 ns typical @ 5V
Output Drive	±6 mA @ 5V
Output Enables	2× active-LOW (OE1, OE2), NOR-gated
تيار التهدئة	80 µA max
Input Levels	CMOS (74HC541)
نوع الإخراج	3-state (high-impedance when disabled)
ESD Protection	HBM >2000V, CDM >1000V
درجة حرارة التشغيل	-40 درجة مئوية إلى +125 درجة مئوية
الحزمة	SOIC-20 (SOT163-1, 12.8×7.5 mm)

الميزات

Octal (8-channel) non-inverting buffer with 3-state outputs
Dual active-LOW output enables (NOR-gated: either HIGH = outputs disabled)
Data flow-through pinout: inputs on one side, outputs on the other
High-current 3-state outputs drive bus lines or up to 15 LSTTL loads
Input clamp diodes for overvoltage interface
CMOS low power dissipation
Complies with JEDEC standards

التطبيقات

Microprocessor/microcontroller bus buffering
Memory I/O port expansion
Backplane and data bus driving
Level translation between logic families

مقدمة المنتج:74HC541D مقدمة المنتج

The 74HC541D from Nexperia is an octal non-inverting buffer/line driver with 3-state outputs in an SOIC-20 package. Dual active-LOW output enables control all eight channels, with a data flow-through pinout simplifying PCB layout. With ±6 mA drive, CMOS low power, and input clamp diodes, it is ideal for microprocessor bus buffering, memory I/O expansion, and backplane driving.

مبدأ العمل:74HC541D مبدأ العمل

The 74HC541D implements eight identical non-inverting buffer channels with 3-state output capability. Each channel passes the input signal to the output without inversion when enabled: Yn = An. The two output enable inputs (OE1, OE2) are NOR-gated internally; if either OE input is HIGH, all eight outputs enter a high-impedance (Hi-Z) state, effectively disconnecting them from the bus. This allows multiple 74HC541D devices to share a common bus using enable-based arbitration. The 3-state outputs can drive bus lines directly or up to 15 LSTTL loads. The data flow-through pinout places all inputs (pins 2-9) on one side and all outputs (pins 11-18) on the other side of the package, simplifying PCB routing for bus-oriented designs. Input clamp diodes protect against voltages exceeding VCC.

وصف الدبوس:74HC541D تعريف الدبوس ووظائفه

دبوس	الاسم	النوع	الوظيفة
1	OE1	المدخلات	Output enable 1 (active LOW)
2-9	A0-A7	المدخلات	8 data inputs
10	GND	الطاقة	أرضي (0 فولت)
11-18	Y0-Y7	المخرجات	8 data outputs (3-state)
19	OE2	المدخلات	Output enable 2 (active LOW)
20	VCC	الطاقة	Supply voltage (2.0-6.0V)

Application Scenarios:In which products and applications is74HC541D مستعمل

Microprocessor and microcontroller bus buffering and isolation
Memory I/O port expansion with 3-state bus sharing
Backplane and data bus driving in multi-board systems
Level translation and signal conditioning between logic families

Alternative Models:What chips are recommended as replacements for 74HC541D

الشركة المصنعة	رقم الجزء	الحزمة	الملاحظات
نيكسبيريا	74HCT541D	SOIC-20	TTL input levels (4.5-5.5V)
TI	SN74HC541DW	SOIC-20	Functionally equivalent
على شبه	MC74HC541ADWR2G	SOIC-20	Functionally equivalent
نيكسبيريا	74HC541PW	TSSOP-20	Smaller footprint
نيكسبيريا	74HC244D	SOIC-20	Same function, different pinout (split enables)