V320 Fairchild Semiconductor, V320 Datasheet

V320

Manufacturer Part Number

V320

Description

V320 8-Bit Registered Bus Transceiver

Manufacturer

Fairchild Semiconductor

Datasheet

1.V320.pdf (10 pages)

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V320

8-Bit Registered Bus Transceiver

General Description

The V320 is an 8-bit universal bus transceiver designed for

high speed interfacing with the VME320 backplane. It has

output characteristics optimized for driving large capacitive

loads and features modified input levels (V

increased noise immunity and reduced input skew. The

V320 functionality consists of bus transceiver circuits with

3-STATE, D-type flip-flops, and control circuitry arranged

for multiplexed transmission of data directly from the input

bus or from the internal registers. Data on the A or B bus

will be clocked into the registers as the appropriate clock

pin goes to a high logic level. OE and direction pins are

provided to control the transceiver function. In the trans-

ceiver mode, data present at the high impedance port may

be stored in either the A or B register or in both. The select

controls can multiplex stored and real time (transparent

mode) data. The direction control determines which bus

will receive data when the enable control OE is active

LOW. In the isolation mode (OE HIGH) A data may be

stored in the B register and/or B data may be stored in the

A register.

Ordering Code:

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Connection Diagram

Order Number

V320MTC

Package Number

MTC24

24-Lead Thin Shrink Small Outline Package, JEDEC MO-153, 4.4mm Wide

DS500149.prf

) for

Features

Pin Descriptions

Independent registers for A and B buses

Multiplexed real-time and stored data

Guaranteed output skew

Guaranteed MOS (Multiple Output Switching) Specifica-

tions

Output switching specified for both 50 pF and 250 pF,

and 500 pF loads

Guaranteed simultaneous switching noise level (V

Glitch free power up/down high impedance for live inser-

tion

BiCMOS technology for high drive and low power dissi-

pation

cations

Modified specifications across V

tic system conditions

Available in TSSOP (MTC)

CLKAB/SELAB

CLKBA/SELBA

A0–7

B0–7

40 C to 85 C commercial temperature and V

OLV

Pin Names

) and dynamic threshold performance (V

Package Description

5.0V 1%, T

A-to-B Clock/Select

B-to-A Clock/Select

Direction A-to-B (High) B-to A (Low)

Output Enable (Active LOW)

A Inputs/Outputs (TTL)

B Inputs/Outputs (TTL)

25 C

April 1998

Revised October 1998

20 C) present more realis-

Description

www.fairchildsemi.com

and temperature

IHD

specifi-

ILD

OLP

)

Related parts for V320

V320 Summary of contents

Page 1

... V320 8-Bit Registered Bus Transceiver General Description The V320 is an 8-bit universal bus transceiver designed for high speed interfacing with the VME320 backplane. It has output characteristics optimized for driving large capacitive loads and features modified input levels (V increased noise immunity and reduced input skew. The ...

Page 2

Functional Table OE D SELAB SELBA CLKAB CLKBA ...

Page 3

Absolute Maximum Ratings DC Input Voltage ( Output Voltage ( Outputs 3-STATE Outputs Active (Note 2) DC Output Sink Current into A-port/B-port Output Source Current from A-port/B-port Input Diode ...

Page 4

Capacitance and Dynamic Switching Characteristics Over Recommended Operating Free-Air Temperature Range (Unless Otherwise Noted) Symbol Parameter C Input Capacitance (Control Pin Output Capacitance (A and B ports) I/O Output Switching Noise (Ground Bounce) V Quiet Output Dynamic Peak ...

Page 5

AC Electrical Characteristics ( From Symbol (Input) Output Load pF, R 500 , 1 Output Switching CLKAB/CLKBA PLH PHL Bus ...

Page 6

AC Electrical Characteristics ( From Symbol (Input) Output Load pF, R 500 , 8 Outputs Switching CLKAB/CLKBA PLH PHL Bus ...

Page 7

Extended AC Electrical Characteristics ( 4.95V to 5.05V), 1 Output Switching CC From Symbol (Input) Output Load pF, R 500 , 1 Output Switching CLKAB/CLKBA PLH PHL t ...

Page 8

Extended AC Electrical Characteristics ( 4.95V to 5.05V), 8 Outputs Switching CC From Symbol (Input) Output Load pF, R 500 , 8 Outputs Switching CLKAB/CLKBA PLH PHL t ...

Page 9

AC Loading and Waveforms *Includes jig and probe capacitance FIGURE 1. Standard AC Test Load FIGURE 2. Test Input Signal Levels Input Pulse Requirements Test Input Signal Requirements Amplitude Rep. Rate t W 3.0V 1 MHz 500 ns FIGURE 3. ...

Page 10

Physical Dimensions 24-Lead Thin Shrink Small Outline Package, JEDEC MO-153, 4.4mm Wide LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF ...

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