Original Integrated Circuit Chip Octal buffer / line driver 3 - state 74HC541N

74HC/HCT541

Octal buffer/line driver; 3-state

FEATURES

• Non-inverting outputs

• Output capability: bus driver

• I_CC category: MSI

GENERAL DESCRIPTION

The 74HC/HCT541 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT541 are octal non-inverting buffer/line drivers with 3-state outputs. The 3-state outputs are controlled by the output enable inputs OE₁ and OE₂. A HIGH on OE_n causes the outputs to assume a high impedance OFF-state.

The “541” is identical to the “540” but has non-inverting outputs

QUICK REFERENCE DATA

GND = 0 V; T_amb = 25 °C; t_r = t_f = 6 ns

Notes

1. C_PD is used to determine the dynamic power dissipation (P_D in µW):

        P_D = C_PD × V_CC2 × f_i + ∑ (C_L × V_CC2 × f_o) where:

    f_i = input frequency in MHz

    f_o = output frequency in MHz

    ∑ (C_L × V_CC2 × f_o) = sum of outputs

    C_L = output load capacitance in pF

    V_CC = supply voltage in V

2. For HC the condition is V_I = GND to V_CC

    For HCT the condition is V_I = GND to V_CC − 1.5 V

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