tc74vhcv240ft TOSHIBA Semiconductor CORPORATION, tc74vhcv240ft Datasheet

tc74vhcv240ft

Manufacturer Part Number

tc74vhcv240ft

Description

Octal Schmitt Bus Buffer

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74VHCV240FT.pdf (9 pages)

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Octal Schmitt Bus Buffer

The TC74VHCV240 and 244 are advanced high speed CMOS

OCTAL BUS BUFFERs fabricated with silicon gate CMOS

technology.

They achieve the high speed operation similar to equivalent

Bipolar Schottky TTL while maintaining the CMOS low power

dissipation.

The 74VHCV240 is an inverting 3-state buffer having two

active-low output enables. The TC74VHCV244 is a non-inverting

3-state buffer, and has two active-low output enables.

Input pin have hysteresis between the positive-going and

negative-going thresholds. Thus the TC74VHCV240 and 244 are

capable of squaring up transitions of slowly changing input

signals and provides an improved noise immunity.

Input protection and output circuit ensure that 0 to 5.5 V can be

applied to the input and output

supply voltage. These structure prevents device destruction due

to mismatched supply and input/output voltages such as battery

back up, etc.

Features

•

(74AC/VHC/HC/F/ALS/LS etc.) 240/244 type

Note:

High speed: t

Low power dissipation: I

Wide operating voltage range: V

Ouput current: |I

Available in TSSOP and VSSOP (US)

Power-down protection provided on all inputs and outputs

Pin and function compatible with the 74 series

TC74VHCV240FT/FK

TC74VHCV244FT/FK

Output in off-state

= 3.9 ns (typ.) at V

TC74VHCV240FT,TC74VHCV240FK

TC74VHCV244FT,TC74VHCV244FK

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

|/I

= 16 mA (min) (V

= 2 μA (max) at Ta = 25°C

(Note)

3-State Outputs

Inverted, 3-State Outputs

Non-Inverted,

CC (opr)

pins without regard to the

= 5 V

= 1.8 V to 5.5 V

= 4.5 V)

Weight

TSSOP20-P-0044-0.65A

VSSOP20-P-0030-0.50

TC74VHCV240FT, TC74VHCV244FT

TC74VHCV240FK, TC74VHCV244FK

TC74VHCV240,244FT/FK

: 0.08 g ( typ.)

: 0.03 g ( typ.)

2010-07-09

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tc74vhcv240ft Summary of contents

Page 1

... Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 240/244 type Inverted, 3-State Outputs Non-Inverted, 3-State Outputs pins without regard to the = 1 5 (opr TC74VHCV240,244FT/FK TC74VHCV240FT, TC74VHCV244FT TC74VHCV240FK, TC74VHCV244FK Weight TSSOP20-P-0044-0.65A : 0. typ.) VSSOP20-P-0030-0. typ.) 2010-07-09 ...

Page 2

Pin Assignment TC74VHCV240 1A1 1A2 1A3 1A4 GND 10 (top view) Truth Table Inputs Outputs G A ...

Page 3

Absolute Maximum Ratings (Note1) Characteristics Supply voltage range DC input voltage DC output voltage Input diode current Output diode current DC output current Power dissipation DC V /ground current CC Storage temperature Note 1: Exceeding any of the absolute maximum ...

Page 4

Electrical Characteristics DC Characteristics Characteristics Symbol Positive threshold voltage V P Negative threshold voltage V N Hysteresis voltage V H High-level output voltage V OH Low-level output voltage V OL 3-state output off-state I OZ current Power-off leakage current I ...

Page 5

AC Characteristics (input Characteristics Symbol Propagation delay t pLH time t pHL (TC74VHCV240) Propagation delay t pLH time t pHL (TC74VHCV244) t pZL 3-state output enable R time t pZH t pLZ 3-state output disable R time t ...

Page 6

Noise Characteristics (input: t Characteristics Quiet output maximum dynamic V OL Quiet output minimum dynamic V OL Minimum high level dynamic input voltage Maximum low level dynamic input voltage = ns Test Condition Symbol = ...

Page 7

Package Dimensions Weight: 0.08 g (typ.) TC74VHCV240,244FT/FK 7 2010-07-09 ...

Page 8

Package Dimensions Weight: 0.03 g (typ.) TC74VHCV240,244FT/FK 8 2010-07-09 ...

Page 9

RESTRICTIONS ON PRODUCT USE • Toshiba Corporation, and its subsidiaries and affiliates (collectively “TOSHIBA”), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively “Product”) without notice. • This document and ...

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