74VHCT244ATTR datasheet(1/12 Pages) STMICROELECTRONICS

Numer części	74VHCT244ATTR

Szczegółowy opis	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

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December 2004

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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 = 0.8V (MAX)

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POWER DOWN PROTECTION ON INPUTS

& OUTPUTS

s

SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 8 mA (MIN)

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BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s

OPERATING VOLTAGE RANGE:

VCC(OPR) = 4.5V to 5.5V

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PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 244

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IMPROVED LATCH-UP IMMUNITY

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LOW NOISE: VOLP = 0.9V (MAX.)

DESCRIPTION

The 74VHCT244A is an advanced high-speed

CMOS

OCTAL

BUS

BUFFER

(3-STATE)

fabricated

with

sub-micron silicon gate and

double-layer metal wiring C2MOS technology.

G enable input governs four BUS BUFFERs.

This device is designed to be used with 3 state

memory address drivers, etc.

Power down protection is provided on all inputs

and outputs 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 since all

inputs are equipped with TTL threshold.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74VHCT244A

OCTAL BUS BUFFER

WITH 3 STATE OUTPUTS (NON INVERTED)

Figure 1: Pin Connection And IEC Logic Symbols

Table 1: Order Codes

PACKAGE

T & R

SOP

74VHCT244AMTR

TSSOP

74VHCT244ATTR

TSSOP

SOP

Rev. 4

Podobny numer części - 74VHCT244ATTR

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	74VHCT244AT	63Kb / 8P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED

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Podobny opis - 74VHCT244ATTR

Producent	Numer części	Arkusz danych	Szczegółowy opis
Toshiba Semiconductor	TC74VHCT240AF	256Kb / 6P	OCTAL BUS BUFFER INVERTED/NON-INVERTED, 3-STATE OUTPUTS
	TC74VHC540F	254Kb / 7P	OCTAL BUS BUFFER INVERTED/NON INVERTED, 3-STATE OUTPUTS
	TC74VHC240F	254Kb / 6P	OCTAL BUS BUFFER. INVERTED/NON-INVERTED, 3-STATE OUTPUTS
	TC74VHCT540AF	256Kb / 6P	OCTAL BUS BUFFER. INVERTED/NON INVERTED, 3-STATE OUTPUTS
	TC74LVX240F	281Kb / 8P	OCTAL BUS BUFFER. INVERTED/NON-INVERTED 3-STATE OUTPUTS
STMicroelectronics	M74HCT244B1R	199Kb / 9P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
	74AC541	84Kb / 8P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
	M74HC244	198Kb / 10P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
	74VHC541	66Kb / 8P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
	74VHCT541A	63Kb / 8P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
	74AC244	79Kb / 8P	OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED April 1997

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