Datasheet > 74VHCT244A_04

74VHCT244A_04

更新时间： 2024-02-27 05:20:23

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		输出元件
页数	文件大小	规格书
12页	245K
描述
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)

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中文翻译

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数据手册

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74VHCT244A_04 数据手册

74VHCT244A

OCTAL BUS BUFFER

WITH 3 STATE OUTPUTS (NON INVERTED)

■

HIGH SPEED: t = 5.4 ns (TYP.) at V = 5V

PD CC

LOW POWER DISSIPATION:

= 4 µA (MAX.) at T =25°C

■

COMPATIBLE WITH TTL OUTPUTS:

= 2V (MIN.), V = 0.8V (MAX)

POWER DOWN PROTECTION ON INPUTS

& OUTPUTS

SOP

TSSOP

T & R

SYMMETRICAL OUTPUT IMPEDANCE:

Table 1: Order Codes

PACKAGE

|I | = I = 8 mA (MIN)

BALANCED PROPAGATION DELAYS:

PLH

PHL

SOP

74VHCT244AMTR

74VHCT244ATTR

OPERATING VOLTAGE RANGE:

(OPR) = 4.5V to 5.5V

TSSOP

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 244

This device is designed to be used with 3 state

memory address drivers, etc.

■

IMPROVED LATCH-UP IMMUNITY

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.

LOW NOISE: V

= 0.9V (MAX.)

OLP

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 C MOS technology.

G enable input governs four BUS BUFFERs.

Figure 1: Pin Connection And IEC Logic Symbols

Rev. 4

1/12

December 2004

12 3 4 5 6 7...12

中文翻译

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