74ACT16657

Name: 74ACT16657
Brand: TI
SKU: 74ACT16657
Price: 6.729 USD

활성

패리티 생성기/검사기 및 3상 출력을 지원하는 16비트 트랜시버

지금 주문

데이터 시트

document-pdfAcrobat 16-Bit Transceivers With Parity Generators/Checkers And 3-State Outputs datasheet (Rev. A) (영어)

74ACT16657

활성

데이터 시트

지금 주문

제품 상세 정보

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Number of channels

16

IOL (max) (mA)

24

IOH (max) (mA)

-24

Input type

TTL

Output type

CMOS

Features

Balanced outputs, Positive input clamp diode, Very high speed (tpd 5-10ns)

Technology family

ACT

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Supply voltage (min) (V)

4.5

Supply voltage (max) (V)

5.5

Number of channels

16

IOL (max) (mA)

24

IOH (max) (mA)

-24

Input type

TTL

Output type

CMOS

Features

Balanced outputs, Positive input clamp diode, Very high speed (tpd 5-10ns)

Technology family

ACT

Rating

Catalog

Operating temperature range (°C)

-40 to 85

SSOP (DL)

56

190.647 mm² 18.42 x 10.35

Members of the Texas Instruments Widebus^TM Family
Inputs Are TTL-Voltage Compatible
Flow-Through Architecture Optimizes PCB Layout
Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
EPIC^TM (Enhanced-Performance Implanted CMOS) 1-m Process
500-mA Typical Latch-Up Immunity at 125°C
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

Members of the Texas Instruments Widebus^TM Family
Inputs Are TTL-Voltage Compatible
Flow-Through Architecture Optimizes PCB Layout
Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
EPIC^TM (Enhanced-Performance Implanted CMOS) 1-m Process
500-mA Typical Latch-Up Immunity at 125°C
Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

The 'ACT16657 contain two noninverting octal transceiver sections with separate parity generator/checker circuits and control signals. For either section, the transmit/receive (1T/R\ or 2T/R\) input determines the direction of data flow. When 1T/R\ (or 2T/R\) is high, data flows from the 1A (or 2A) port to the 1B (or 2B) port (transmit mode); when 1T/R\ (or 2T/R\) is low, data flows from the 1B (or 2B) port to the 1A (or 2A) port (receive mode). When the output-enable (1 or 2) input is high, both the 1A (or 2A) and 1B (or 2B) ports are in the high-impedance state.

Odd or even parity is selected by a logic high or low level, respectively, on the 1ODD/ (or 2ODD/) input. 1PARITY (or 2PARITY) carries the parity bit value; it is an output from the parity generator/checker in the transmit mode and an input to the parity generator/checker in the receive mode.

In the transmit mode, after the 1A (or 2A) bus is polled to determine the number of high bits, 1PARITY (or 2PARITY) is set to the logic level that maintains the parity sense selected by the level at the 1ODD/ (or 2ODD/) input. For example, if 1ODD/ is low (even parity selected) and there are five high bits on the 1A bus, then 1PARITY is set to the logic high level so that an even number of the nine total bits (eight 1A-bus bits plus parity bit) are high.

In the receive mode, after the 1B (or 2B) bus is polled to determine the number of high bits, the 1 (or 2) output logic level indicates whether or not the data to be received exhibits the correct parity sense. For example, if 1ODD/ is high (odd parity selected), 1PARITY is high, and there are three high bits on the 1B bus, then 1 is low, indicating a parity error.

The 74ACT16657 is packaged in TI's shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16657 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16657 is characterized for operation from -40°C to 85°C.

The 'ACT16657 contain two noninverting octal transceiver sections with separate parity generator/checker circuits and control signals. For either section, the transmit/receive (1T/R\ or 2T/R\) input determines the direction of data flow. When 1T/R\ (or 2T/R\) is high, data flows from the 1A (or 2A) port to the 1B (or 2B) port (transmit mode); when 1T/R\ (or 2T/R\) is low, data flows from the 1B (or 2B) port to the 1A (or 2A) port (receive mode). When the output-enable (1 or 2) input is high, both the 1A (or 2A) and 1B (or 2B) ports are in the high-impedance state.

Odd or even parity is selected by a logic high or low level, respectively, on the 1ODD/ (or 2ODD/) input. 1PARITY (or 2PARITY) carries the parity bit value; it is an output from the parity generator/checker in the transmit mode and an input to the parity generator/checker in the receive mode.

In the transmit mode, after the 1A (or 2A) bus is polled to determine the number of high bits, 1PARITY (or 2PARITY) is set to the logic level that maintains the parity sense selected by the level at the 1ODD/ (or 2ODD/) input. For example, if 1ODD/ is low (even parity selected) and there are five high bits on the 1A bus, then 1PARITY is set to the logic high level so that an even number of the nine total bits (eight 1A-bus bits plus parity bit) are high.

In the receive mode, after the 1B (or 2B) bus is polled to determine the number of high bits, the 1 (or 2) output logic level indicates whether or not the data to be received exhibits the correct parity sense. For example, if 1ODD/ is high (odd parity selected), 1PARITY is high, and there are three high bits on the 1B bus, then 1 is low, indicating a parity error.

The 74ACT16657 is packaged in TI's shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16657 is characterized for operation over the full military temperature range of -55°C to 125°C. The 74ACT16657 is characterized for operation from -40°C to 85°C.

filter

기타 범용 트랜시버 찾기

다운로드