SN74ALVCH16721

활성

3상 출력을 지원하는 3.3V 20비트 플립플롭

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데이터 시트

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

SN74ALVCH16721

활성

지금 주문하기

제품 상세 정보

Number of channels

20

Technology family

ALVC

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

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

TSSOP (DGG)

56

113.4 mm² (14 mm × 8.1 mm)

SSOP (DL)

56

190.647 mm² (18.42 mm × 10.35 mm)

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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4개 모두 보기

상위 문서	유형	직함	형식 옵션
*	데이터 시트	SN74ALVCH16721 datasheet (Rev. E)		2004. 8. 3
	애플리케이션 노트	Power-Up Behavior of Clocked Devices (Rev. B)	PDF \| HTML	2022. 12. 15
	애플리케이션 노트	An Overview of Bus-Hold Circuit and the Applications (Rev. B)		2018. 9. 17
	애플리케이션 노트	Timing Differences of 10-pF Versus 50pF Loading		1996. 11. 1