TC74VCXR162500FT_07 TOSHIBA [Toshiba Semiconductor], TC74VCXR162500FT_07 Datasheet

TC74VCXR162500FT_07

Manufacturer Part Number

TC74VCXR162500FT_07

Description

Low-Voltage 18-Bit Universal Bus Transceiver with 3.6-V Tolerant Inputs and Outputs

Manufacturer

TOSHIBA [Toshiba Semiconductor]

Datasheet

1.TC74VCXR162500FT_07.pdf (13 pages)

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Low-Voltage 18-Bit Universal Bus Transceiver with 3.6-V Tolerant Inputs and Outputs

universal bus transceiver. Designed for use in 1.8-V, 2.5-V or

3.3-V systems, it achieves high-speed operation while

maintaining the CMOS low power dissipation.

up to 3.6 V.

(OEAB and OEBA), latch-enable (LEAB and LEBA), and clock

(CKAB and CKBA) inputs.

mode when LEAB is high. When LEAB is low, the A data is

latched if CKAB is held at a high or low logic level. If LEAB is

low, the A bus data is stored in the latch/flip-flop on the high-to-low transition of CKAB.

3-state memory address drivers, etc.

Features (Note)

•

The TC74VCXR162500FT is a high-performance CMOS 18-bit

It is also designed with overvoltage tolerant inputs and outputs

Data flow in each direction is controlled by output-enable

For A-to-B data flow, the device operates in the transparent

Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, and CKBA.

When the OE input is high, the outputs are in a high-impedance state. This device is designed to be used with

The 26-Ω series resistor helps reducing output overshoot and undershoot without external resistor.

All inputs are equipped with protection circuits against static discharge.

26-Ω series resistors on outputs

Low-voltage operation: V

High-speed operation: t

Output current: I

Latch-up performance: −300 mA

ESD performance: Machine model ≥ ±200 V

Package: TSSOP

Bidirectional interface between 2.5 V and 3.3 V signals.

3.6-V tolerant function and power-down protection provided on all inputs and outputs

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 level fixed by means of pull-up or pull-down

resistors.

: I

Human body model ≥ ±2000 V

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

: t

TC74VCXR162500FT

= ±12 mA (min) (V

= ±8 mA (min) (V

= ±4 mA (min) (V

= 4.9 ns (max) (V

= 9.8 ns (max) (V

= 3.8 ns (max) (V

= 1.8 to 3.6 V

= 2.3 V)

= 1.8 V)

= 2.3 to 2.7 V)

= 1.8 V)

= 3.0 to 3.6 V)

= 3.0 V)

Weight: 0.25 g (typ.)

TC74VCXR162500FT

2007-10-19

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TC74VCXR162500FT_07 Summary of contents

Page 1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VCXR162500FT Low-Voltage 18-Bit Universal Bus Transceiver with 3.6-V Tolerant Inputs and Outputs The TC74VCXR162500FT is a high-performance CMOS 18-bit universal bus transceiver. Designed for use in 1.8-V, 2.5-V or 3.3-V systems, it achieves ...

Page 2

Pin Assignment (top view) 1 OEAB LEAB GND GND A10 15 A11 16 A12 17 GND ...

Page 3

Truth Table (A bus → B bus) Inputs OEAB LEAB CKAB Note: Output level before the indicated steady-state input conditions were ...

Page 4

System Diagram 1 OEAB 30 CKBA 28 LEBA 27 OEBA 55 CKAB 2 LEAB 3 A1 Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage DC input voltage (OEAB, OEBA , LEAB, LEBA, CKAB , CKBA ) DC bus I/O ...

Page 5

Operating Ranges (Note 1) Characteristics Power supply voltage Input voltage (OEAB, OEBA , LEAB, LEBA, CKAB , CKBA ) Bus I/O voltage Output current Operating temperature Input rise and fall time Note 1: The operating ranges must be maintained to ...

Page 6

Electrical Characteristics DC Characteristics (Ta = −40 to 85°C, 2.7 V < V Characteristics Symbol H-level Input voltage L-level H-level Output voltage L-level Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in I ...

Page 7

V < Characteristics Characteristics Symbol H-level Input voltage L-level H-level Output voltage L-level Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current < 2 ...

Page 8

AC Characteristics (Ta = −40 to 85°C, input: t Characteristics Maximum clock frequency Propagation delay time (An, Bn-Bn, An) Propagation delay time ( CKAB , CLKBA -Bn, An) Propagation delay time (LEAB, LEBA-Bn, An) Output enable time (OEAB, OEBA -Bn, ...

Page 9

Dynamic Switching Characteristics (Ta = 25°C, input 2.0 ns Characteristics Quiet output maximum dynamic V OL Quiet output minimum dynamic V OL Quiet output minimum dynamic V OH Note: Parameter guaranteed by design. ...

Page 10

AC Test Circuit Switch Output AC Waveform 90% Input V M (An, Bn) Output (Bn, An) t pLH t 90% Input V ( CKAB , CKBA ) Input (An, Bn) Output (Bn, ...

Page 11

Input (LEAB, LEBA) 10 90% Input V M (An, Bn) 10% t ( Output V M (Bn, An) t pLH Output Enable Control ( ...

Page 12

Package Dimensions Weight: 0.25 g (typ.) TC74VCXR162500FT 12 2007-10-19 ...

Page 13

RESTRICTIONS ON PRODUCT USE • The information contained herein is subject to change without notice. • TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to ...

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