SN54AS821A

Name: SN54AS821A
Brand: TI
SKU: SN54AS821A
Price: 24.739 USD

활성

3상 출력을 지원하는 10비트 버스 인터페이스 플립플롭

지금 주문

데이터 시트

document-pdfAcrobat 10-Bit Bus Interface Flip-Flops With 3-State Outputs datasheet (Rev. A) (영어)

SN54AS821A

활성

데이터 시트

지금 주문

제품 상세 정보

Number of channels

10

Technology family

AS

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Input type

Bipolar

Output type

3-State

Clock frequency (max) (MHz)

125

IOL (max) (mA)

48

IOH (max) (mA)

-24

Supply current (max) (µA)

113000

Features

High speed (tpd 10-50ns)

Operating temperature range (°C)

-55 to 125

Rating

Military

Number of channels

10

Technology family

AS

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Input type

Bipolar

Output type

3-State

Clock frequency (max) (MHz)

125

IOL (max) (mA)

48

IOH (max) (mA)

-24

Supply current (max) (µA)

113000

Features

High speed (tpd 10-50ns)

Operating temperature range (°C)

-55 to 125

Rating

Military

CDIP (JT)

24

221.44 mm² 32 x 6.92

Functionally Equivalent to AMD's AM29821
Provide Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity
Outputs Have Undershoot-Protection Circuitry
Power-Up High-Impedance State
Buffered Control Inputs to Reduce
dc Loading Effects
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

Functionally Equivalent to AMD's AM29821
Provide Extra Data Width Necessary for Wider Address/Data Paths or Buses With Parity
Outputs Have Undershoot-Protection Circuitry
Power-Up High-Impedance State
Buffered Control Inputs to Reduce
dc Loading Effects
Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (NT) and Ceramic (JT) 300-mil DIPs

These 10-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

The ten flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are true to the data (D) input.

A buffered output-enable () input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or a 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 interface or pullup components.

does not affect the internal operation of the flip-flops. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54AS821A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AS821A is characterized for operation from 0°C to 70°C.

These 10-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

The ten flip-flops are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are true to the data (D) input.

A buffered output-enable () input can be used to place the ten outputs in either a normal logic state (high or low logic levels) or a 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 interface or pullup components.

does not affect the internal operation of the flip-flops. Previously stored data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54AS821A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AS821A is characterized for operation from 0°C to 70°C.

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