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74ACT541STN/a1936avaiOCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)


74ACT541 ,OCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
74ACT541B ,OCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
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74ACT541M ,OCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
74ACT541M ,OCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitV Supply Voltage -0.5 to +7 VCCV DC Input ..
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74ACT541
OCTAL BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)
1/9April 2001 HIGH SPEED: tPD = 4ns (TYP .) at VCC = 5V LOW POWER DISSIPATION:CC = 4μA(MAX.) at TA =25°C COMPATIBLE WITH TTL OUTPUTS
VIH = 2V (MIN.), VIL = 0.8V (MAX.) 50Ω TRANSMISSION LINE DRIVING
CAPABILITY SYMMETRICAL OUTPUT IMPEDANCE:OH | = IOL = 24mA (MIN) BALANCED PROPAGATION DELAYS: PLH ≅ t PHL OPERATING VOLTAGE RANGE:
VCC (OPR) = 4.5V to 5.5V PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 541 IMPROVED LATCH-UP IMMUNITY
DESCRIPTION

The 74ACT541 is an advanced high-speed CMOS
OCTAL BUS BUFFER (3-STATE) fabricated with
sub-micron silicon gate and double-layer metal
wiring C2 MOS tecnology.
The 3 STATE control gate operates as two input
AND such that if either G1 and G2 are high, all
eight outputs are in the high impedance state.
In order to enhance PC board layout, the
74ACT541 offers a pinout having inputs and
outputs on opposite sides of the package.
This device is designed to interface directly High
Speed CMOS systems with TTL, NMOS and
CMOS output voltage levlels.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
74ACT541

OCTAL BUS BUFFER
WITH 3 STATE OUTPUTS (NON INVERTED)
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
74ACT541
2/9
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE

X : Don’t Care
Z : High Impedance
ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
RECOMMENDED OPERATING CONDITIONS

1) VIN from 0.8V to 2.0V
74ACT541
3/9
DC SPECIFICATIONS

1) Maximum test duration 2ms, one output loaded at time
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50Ω
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf = 3ns)

(*) Voltage range is 5.0V ± 0.5V
74ACT541
4/9
CAPACITIVE CHARACTERISTICS

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/n (per circuit)
TEST CIRCUIT

CL = 50pF or equivalent (includes jig and probe capacitance)
RL = R1 = 500Ω or equivalent
RT = ZOUT of pulse generator (typically 50Ω)
74ACT541
5/9
WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)

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