74VHCT16244A 데이터 시트보기 (PDF) - STMicroelectronics

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74VHCT16244A

16-BIT BUS BUFFER WITH 3-STATE OUTPUTS (NON INVERTED)

STMicroelectronics 

74VHCT16244A

16-BIT BUS BUFFER

WITH 3-STATE OUTPUTS (NON INVERTED)

s HIGH SPEED:

tPD = 5.4 ns (TYP.) at VCC = 5V

s LOW POWER DISSIPATION:

ICC = 4 µA (MAX.) at TA=25°C

s COMPATIBLE WITH TTL OUTPUTS:

VIH =2V (MIN.) VIL = 0.8 (MAX.)

s POWER DOWN PROTECTION ON INPUTS

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 8 mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s OPERATING VOLTAGE RANGE:

VCC(OPR) = 4.5V to 5.5V

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 16244

s IMPROVED LATCH-UP IMMUNITY

s LOW NOISE: VOLP = 0.9V (MAX.)

DESCRIPTION

The 74VHCT16244A is an advanced high-speed

CMOS 16-BIT BUS BUFFER (3-STATE)

fabricated with sub-micron silicon gate and

double-layer metal wiring C2MOS tecnology.

Any nG output control governs four BUS

BUFFERS. Output Enable inputs (nG) tied

together give full 16 bit operation.

When nG is LOW, the outputs are enabled. When

nG is HIGH, the output are in high impedance

state.

The device is designed to be used with 3-state

memory address drivers, etc.

Power down protection is provided on all inputs

and 0 to 7V can be accepted on inputs with no

regard to the supply voltage. This device can be

used to interface 5V to 3V.

All inputs and outputs are equipped with protec-

tion circuits against static discharge, giving them

2KV ESD immunity and transient excess voltage.

TSSOP

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PACKAGE

TSSOP

TUBE

PIN CONNECTION

T&R

74VHCT16244ATTR

February 2003

1/9

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