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D 型触发器

SN74AHCT16374

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具有三态输出的 16 位边沿 D 类触发器

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SN74AHCT16374

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Number of channels 16 Technology family AHCT Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 8 IOH (max) (mA) -8 Supply current (max) (µA) 40 Features Balanced outputs, Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 16 Technology family AHCT Input type TTL-Compatible CMOS Output type 3-State Clock frequency (max) (MHz) 70 IOL (max) (mA) 8 IOH (max) (mA) -8 Supply current (max) (µA) 40 Features Balanced outputs, Very high speed (tpd 5-10ns) Operating temperature range (°C) -40 to 85 Rating Catalog
SSOP (DL) 48 164.358 mm² (15.88 mm × 10.35 mm) TVSOP (DGV) 48 62.08 mm² (9.7 mm × 6.4 mm) TSSOP (DGG) 48 101.25 mm² (12.5 mm × 8.1 mm)
  • Members of the Texas Instruments WidebusTM Family
  • EPICTM (Enhanced-Performance Implanted CMOS) Process
  • Inputs Are TTL-Voltage Compatible
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Flow-Through Architecture Optimizes PCB Layout
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Package Options Include Plastic Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

EPIC and Widebus are trademarks of Texas Instruments Incorporated.
  • Members of the Texas Instruments WidebusTM Family
  • EPICTM (Enhanced-Performance Implanted CMOS) Process
  • Inputs Are TTL-Voltage Compatible
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Flow-Through Architecture Optimizes PCB Layout
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • Package Options Include Plastic Shrink Small-Outline (DL), Thin Shrink Small-Outline (DGG), and Thin Very Small-Outline (DGV) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

The 'AHCT16374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

These devices can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels at the data (D) inputs.

A buffered output-enable (OE\) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) 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 the increased drive provide the capability to drive bus lines without need for interface or pullup components.

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

OE\ does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54AHCT16374 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AHCT16374 is characterized for operation from -40°C to 85°C.

The 'AHCT16374 devices are 16-bit edge-triggered D-type flip-flops with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

These devices can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels at the data (D) inputs.

A buffered output-enable (OE\) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) 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 the increased drive provide the capability to drive bus lines without need for interface or pullup components.

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

OE\ does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN54AHCT16374 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74AHCT16374 is characterized for operation from -40°C to 85°C.

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 SNX4AHCT1637416-Bit Edge-Triggered D-Type Flip-Flops With 3-State Outputs 数据表 (Rev. I) 2000-2-21
应用手册 Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 2022-12-15

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封装 引脚 CAD 符号、封装和 3D 模型
SSOP (DL) 48 Ultra Librarian
TVSOP (DGV) 48 Ultra Librarian
TSSOP (DGG) 48 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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