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TI产品 - SN74ALVCH32501介绍

SN74ALVCH32501 - 具有三态输出的 36 位通用总线收发器

SN74ALVCH32501是TI德州仪器公司的一款通用总线收发器(UBT)产品，SN74ALVCH32501是具有三态输出的 36 位通用总线收发器，本站介绍了SN74ALVCH32501的封装应用图解、特点和优点、功能等，并给出了与SN74ALVCH32501相关的TI元器件型号供参考。

SN74ALVCH32501 - 具有三态输出的 36 位通用总线收发器 - 通用总线收发器(UBT) - 通用总线功能 - 德州仪器

产品描述

This 36-bit universal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

This device can be used as two 18-bit transceivers or one 36-bit transceiver. Data flow in each direction is controlled by output-enable (OEAB and OEBA\), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is high, the outputs are active. When OEAB is low, the outputs are in the high-impedance state.

Data flow for B to A is similar to that of A to B, but uses OEBA\, LEBA, and CLKBA. The output enables are complementary (OEAB is active high and OEBA\ is active low).

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

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

产品特性

  • Member of the Texas Instruments Widebus+™ Family
  • UBT™ Transceiver Combines D-Type Latches and D-Type Flip-Flops for Operation in Transparent, Latched, or Clocked Mode
  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.9 ns at 3.3 V
  • ±24 mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Widebus+, UBT are trademarks of Texas Instruments.

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