74HC541 Datasheet – Octal Bus Buffer
3-State Octal Bus Buffer
74HC541 overview
The 74HC541 is a 3-State Octal Bus Buffer made by STMicroelectronics, supplied in these packages: DIP, SOP, TSSOP 20 Pin type. Main ratings: HIGH SPEED tPD = 9ns (TYP.) at VCC = 6V; LOW POWER DISSIPATION ICC = 4mA(MAX.) at TA=25°C; HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.); SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6mA (MIN). The absolute maximum ratings table on this page lists the 10 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the 74HC541 pinout, key specifications and maximum ratings, with the full datasheet PDF to preview below or download.
The 74HC541 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon gate C2MOS technology. The M74HC541 is a non inverting buffer.
The 3-STATE control gate operates as a two input AND such that if either G1 and G2 are high, all eight output are in the high impedance state. In order to enhance PC board layout the M74HC541 offer a pinout having inputs and outputs on opposite sides of the package.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
Key specifications
Datasheet
74HC541 features
- BALANCED PROPAGATION DELAYS: tPLH @ tPHL
- PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 541
74HC541 pinout
| Pin | Name | Description |
|---|---|---|
| 1, 19 | G1, G2 | Output Enable Inputs |
| 2, 3, 4, 5, 6, 7, 8, 9 | A1 to A8 | Data Inputs |
| 18, 17, 16, 15, 14, 13, 12, 11 | Y1 to Y8 | Bus Outputs |
| 10 | GND | Ground (0V) |
| 20 | VCC | Positive Supply Voltage |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Supply Voltage | VCC | -0.5 to +7 | V |
| DC Input Voltage | VI | -0.5 to VCC + 0.5 | V |
| DC Output Voltage | VO | -0.5 to VCC + 0.5 | V |
| DC Input Diode Current | IIK | ± 20 | mA |
| DC Output Diode Current | IOK | ± 20 | mA |
| DC Output Current | IO | ± 35 | mA |
| DC VCC or Ground Current | ICC or IGND | ± 70 | mA |
| Power Dissipation | PD | 500(*) | mW |
| Storage Temperature | Tstg | -65 to +150 | °C |
| Lead Temperature (10 sec) | TL | 300 | °C |
74HC541 applications
- Digital Logic Buffers
- Signal Level Shifting
- Bus Transceivers
- Data Buffering
- Address and Data Bus Isolation
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