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SN74ALVCHR16269A, SN74ALVCHR16269ADGV, SN74ALVCHR16269AVR

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Info of SN74ALVCHR16269A
Info of SN74ALVCHR16269ADGV
Info of SN74ALVCHR16269AVR

SN74ALVCHR16269A, SN74ALVCHR16269ADGV, SN74ALVCHR16269AVR Selling Leads, Datasheet

MFG:Texas Instruments (VA) Category:Integrated Circuits (ICs) Package Cooled:09+ D/C:1000

SN74ALVCHR16269A, SN74ALVCHR16269ADGV, SN74ALVCHR16269AVR Datasheet download

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Part Number: SN74ALVCHR16269AVR

Category: Integrated Circuits (ICs)

MFG: Texas Instruments (VA)

Package Cooled: 09+

D/C: 1000

Description: IC RGSTRD BUS EXCHANGER 56TVSOP

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SN74ALVCHR16269A General Description

This 12-bit to 24-bit registered bus exchanger is designed for 1.65-V to 3.6-V V_CCoperation.

The SN74ALVCHR16269A is used in applications in which two ports must be multiplexed onto, or demultiplexed from, a single port. It is particularly suitable as an interface between synchronous DRAMs and high-speed microprocessors.

Data is stored in the internal B-port registers on the low-to-high transition of the clock (CLK) input when the appropriate clock-enable (CLKENA) inputs are low. Proper control of these inputs allows two sequential 12-bit words to be presented as a 24-bit word on the B port. For data transfer in the B-to-A direction, a single storage register is provided. The select (SEL) line selects 1B or 2B data for the A outputs. The register on the A output permits the fastest possible data transfer, thus extending the period during which the data is valid on the bus. The control terminals are registered so that all transactions are synchronous with CLK. Data flow is controlled by the active-low output enables (OEA, OEB1, and OEB2).

To ensure the high-impedance state during power up or power down, a clock pulse should be applied as soon as possible and OE should be tied to V_CCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Due to OE being routed through a register, the active state of the outputs cannot be determined prior to the arrival of the first clock pulse.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

All outputs are designed to sink up to 12 mA, and include equivalent 26- resistors to reduce overshoot and undershoot.

The SN74ALVCHR16269A is characterized for operation from-40 to 85.

SN74ALVCHR16269A Maximum Ratings

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V
Input voltage range, V_I: Except I/O ports (see Note 1) . . .. . . . . 0.5 V to 4.6 V
                                 I/O ports (see Notes 1 and 2) . . . . . 0.5 V to V_CC + 0.5 V
Output voltage range, V_O (see Notes 1 and 2) . . . . .. . . . 0.5 V to V_CC + 0.5 V
Input clamp current, I_IK (V_I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Output clamp current, I_OK (V_O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Continuous output current, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through each V_CC or GND . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, _JA (see Note 3): DGG package . . . .. . . . 81°C/W
                                                                          DGV package .. . . . . . . 86°C/W
                                                                          DL package . .. . . . . . . 74°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C

SN74ALVCHR16269A Connection Diagram

SN74ALVCHR16269AVR Parameters

Technical/Catalog Information	SN74ALVCHR16269AVR
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Number of Circuits	12 ~ 24-Bit
Package / Case	56-TVSOP
Logic Type	Registered Bus Exchanger
Packaging	Digi-Reel?
Mounting Type	Surface Mount
Number of Inputs	-
Current - Output High, Low	12mA, 12mA
Supply Voltage	1.65 V ~ 3.6 V
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	1.65 V ~ 3.6 V
Drawing Number	296; 4073251; DGV; 14, 16, 20, 24, 48, 56
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74ALVCHR16269AVR SN74ALVCHR16269AVR 296 6290 6 ND 29662906ND 296-6290-6

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