tc74vhcv245ft TOSHIBA Semiconductor CORPORATION, tc74vhcv245ft Datasheet

tc74vhcv245ft

Manufacturer Part Number

tc74vhcv245ft

Description

Octal Schmitt Bus Transceiver

Manufacturer

TOSHIBA Semiconductor CORPORATION

Datasheet

1.TC74VHCV245FT.pdf (9 pages)

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Bonase Electronics (HK) Co., Limited

Part Number:

tc74vhcv245ft(EL

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SHARP

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Octal Schmitt Bus Transceiver

The TC74VHCV245 is an advanced high speed CMOS OCTAL

BUS TRANSCEIVER fabricated with silicon gate CMOS

technology.

It achieves the high speed operation similar to equivalent Bipolar

Schottky TTL while maintaining the CMOS low power

dissipation.

It is intended for two-way asynchronous communication between

data busses. The direction of data transmission is determined by

the level of the DIR input.

The enable input ( G ) can be used to disable the device so that the

busses are effectively isolated.

Input pin and bus terminal have hysteresis between the

positive-going and negative-going thresholds. Thus the

TC74VHCV245 is 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 (Note)

•

TC74VHCV245FT,TC74VHCV245FK

Note: Output in off-state.

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

(74AC/VHC/HC/F/ALS/LS etc.) 245 type

Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result.

All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down

resistors.

= 3.8 ns (typ.) at V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

|/I

= 16 mA (min) (V

= 2 μA (max) at Ta = 25°C

(Note)

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

TC74VHCV245FT

TC74VHCV245FK

TC74VHCV245FT/FK

: 0.08 g ( typ.)

: 0.03 g ( typ.)

2010-07-09

Related parts for tc74vhcv245ft

tc74vhcv245ft Summary of contents

Page 1

... Note: Do not apply a signal to any bus pins when the output mode. Damage may result. All floating (high impedance) bus pins must have their input levels fixed by means of pull-up or pull-down resistors. pins without regard to the = 1 5 (opr TC74VHCV245FT/FK TC74VHCV245FT TC74VHCV245FK Weight TSSOP20-P-0044-0.65A : 0. typ.) VSSOP20-P-0030-0. typ.) 2010-07-09 ...

Page 2

... GND 10 (top view) Truth Table Inputs Function G DIR A Bus L L Output L H Input Don’t care Z: High impedance Output B Bus Input Output TC74VHCV245FT/FK 2010-07-09 ...

Page 3

... 5 5 − opr 0 to 20(Vcc=3.3 ± 0.3V) dt/ 1(Vcc=5 ± 0.5V) or GND. Please connect both bus inputs and the bus outputs with VCC TC74VHCV245FT/FK Unit V V (Note 0.5 (Note (Note °C Unit V ...

Page 4

... 1 5 5.5V OUT = 5 OUT 5 GND IN 5.5 5 GND TC74VHCV245FT/ 25°C −40 to 85°C Min Typ. Max Min Max ― ― 1.65 ― 1.65 ― ― 1.85 ― 1.85 ― ― 2.20 ― 2.20 ― ― 3.15 ― 3.15 ― ...

Page 5

... kΩ 5.0 ± 0.5 50 2.5 ± 0.2 50 3.3 ± 0 kΩ 5.0 ± 0.5 50 2.5 ± 0.2 50 3.3 ± 0.3 50 (Note1) 5.0 ± 0.5 50 DIR, G An, Bn (Note2 − osHL pHLm pHLn + I /8 (per bit TC74VHCV245FT/ − 25°C 85°C Min Typ. Max Min Max ― 5.9 13.0 1.0 15.0 ― 8.7 15.9 1.0 18.0 ― 4.6 8.4 1.0 10.0 ― 6.9 11.9 1.0 13.5 ― 3.8 5.5 1.0 6.5 ― ...

Page 6

... Minimum high level dynamic input V IHD voltage Maximum low level dynamic input V ILD voltage = ns Test Condition TC74VHCV245FT/ 25°C Unit VCC (V) Typ. Max 3.3 0.5 ― V 5.0 1.0 ― 3.3 −0.1 ― V 5.0 −0.3 ― 5.0 ― 3.5 V 5.0 ― ...

Page 7

... Package Dimensions Weight: 0.08 g (typ.) TC74VHCV245FT/FK 7 2010-07-09 ...

Page 8

... Package Dimensions Weight: 0.03 g (typ.) TC74VHCV245FT/FK 8 2010-07-09 ...

Page 9

... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. TC74VHCV245FT/FK 9 2010-07-09 ...

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