SN74ALVCH16721

Name: SN74ALVCH16721
Brand: TI
SKU: SN74ALVCH16721
Price: 0.707 USD

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Flipflop, 3,3 V, 20 Bit, mit Tri-State-Ausgängen

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Datenblatt

document-pdfAcrobat SN74ALVCH16721 datasheet (Rev. E) (Englisch)

SN74ALVCH16721

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Datenblatt

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Produktdetails

Number of channels

20

Technology family

ALVC

Supply voltage (min) (V)

1.65

Supply voltage (max) (V)

3.6

Input type

Standard CMOS

Output type

3-State

Clock frequency (max) (MHz)

150

IOL (max) (mA)

24

IOH (max) (mA)

-24

Supply current (max) (µA)

40

Features

Balanced outputs, Bus-hold, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns)

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Number of channels

20

Technology family

ALVC

Supply voltage (min) (V)

1.65

Supply voltage (max) (V)

3.6

Input type

Standard CMOS

Output type

3-State

Clock frequency (max) (MHz)

150

IOL (max) (mA)

24

IOH (max) (mA)

-24

Supply current (max) (µA)

40

Features

Balanced outputs, Bus-hold, Over-voltage tolerant inputs, Very high speed (tpd 5-10ns)

Operating temperature range (°C)

-40 to 85

Rating

Catalog

SSOP (DL)

56

190.647 mm² 18.42 x 10.35

TSSOP (DGG)

56

113.4 mm² 14 x 8.1

Member of the Texas Instruments Widebus™ Family
EPIC™ (Enhanced-Performance Implanted CMOS) Submicron Process ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 250 mA Per JESD 17
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages

Widebus, EPIC are trademarks of Texas Instruments.

Member of the Texas Instruments Widebus™ Family
EPIC™ (Enhanced-Performance Implanted CMOS) Submicron Process ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 250 mA Per JESD 17
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
Package Options Include Plastic 300-mil Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages

Widebus, EPIC are trademarks of Texas Instruments.

This 20-bit flip-flop is designed specifically for 1.65-V to 3.6-V V_CC operation.

The 20 flip-flops of the SN74ALVCH16721 are edge-triggered D-type flip-flops with qualified clock storage. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs if the clock-enable (CLKEN)\ input is low. If CLKEN\ is high, no data is stored.

A buffered output-enable (OE)\ input places the 20 outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components. OE\ does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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

The SN74ALVCH16721 is characterized for operation from –40°C to 85°C.

This 20-bit flip-flop is designed specifically for 1.65-V to 3.6-V V_CC operation.

The 20 flip-flops of the SN74ALVCH16721 are edge-triggered D-type flip-flops with qualified clock storage. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs if the clock-enable (CLKEN)\ input is low. If CLKEN\ is high, no data is stored.

A buffered output-enable (OE)\ input places the 20 outputs in either a normal logic state (high or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components. OE\ does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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

The SN74ALVCH16721 is characterized for operation from –40°C to 85°C.

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Alle anzeigen 21

	Typ	Titel		Datum
*	Data sheet	SN74ALVCH16721 datasheet (Rev. E)		03 Aug 2004
	Application note	Power-Up Behavior of Clocked Devices (Rev. B)	PDF \| HTML	15 Dez 2022
	Application note	An Overview of Bus-Hold Circuit and the Applications (Rev. B)		17 Sep 2018
	Selection guide	Logic Guide (Rev. AB)		12 Jun 2017
	Application note	Understanding and Interpreting Standard-Logic Data Sheets (Rev. C)		02 Dez 2015
	User guide	LOGIC Pocket Data Book (Rev. B)		16 Jan 2007
	Application note	Semiconductor Packing Material Electrostatic Discharge (ESD) Protection		08 Jul 2004
	Application note	TI IBIS File Creation, Validation, and Distribution Processes		29 Aug 2002
	User guide	ALVC Advanced Low-Voltage CMOS Including SSTL, HSTL, And ALB (Rev. B)		01 Aug 2002
	More literature	Standard Linear & Logic for PCs, Servers & Motherboards		13 Jun 2002
	Application note	16-Bit Widebus Logic Families in 56-Ball, 0.65-mm Pitch Very Thin Fine-Pitch BGA (Rev. B)		22 Mai 2002
	Application note	Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A)		08 Sep 1999
	Application note	TI SN74ALVC16835 Component Specification Analysis for PC100		03 Aug 1998
	Application note	Logic Solutions for PC-100 SDRAM Registered DIMMs (Rev. A)		13 Mai 1998
	Application note	Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices		01 Dez 1997
	Application note	Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A)		01 Aug 1997
	Application note	CMOS Power Consumption and CPD Calculation (Rev. B)		01 Jun 1997
	Application note	Timing Differences of 10-pF Versus 50pF Loading		01 Nov 1996
	Application note	Input and Output Characteristics of Digital Integrated Circuits		01 Okt 1996
	Application note	Live Insertion		01 Okt 1996
	Application note	Understanding Advanced Bus-Interface Products Design Guide		01 Mai 1996

Design und Entwicklung

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