型号SN74ABT16374A
品牌
分类D 型触发器
描述具有三态输出的 16 位边沿 D 类触发器
相关操作
产品概述

参数

Number of channels 16
Technology family ABT
Supply voltage (min) (V) 4.5
Supply voltage (max) (V) 5.5
Input type TTL-Compatible CMOS
Output type 3-State
Clock frequency (max) (MHz) 150
IOL (max) (mA) 64
IOH (max) (mA) -32
Supply current (max) (µA) 72000
Features Partial power down (Ioff), Very high speed (tpd 5-10ns)
Operating temperature range (°C) -40 to 85
Rating Catalog

封装 | 引脚 | 尺寸

SSOP (DL) 48 164.358 mm² 15.88 x 10.35
TSSOP (DGG) 48 101.25 mm² 12.5 x 8.1

特性

  • Members of the Texas Instruments WidebusTM Family
  • State-of-the-Art EPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
  • ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015
  • Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
  • Typical VOLP (Output Ground Bounce) < 0.8 V at VCC = 5 V, TA = 25°C
  • High-Impedance State During Power Up and Power Down
  • Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise
  • Flow-Through Architecture Optimizes PCB Layout
  • High-Drive Outputs (-32-mA IOH, 64-mA IOL)
  • Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages and 380-mil Fine-Pitch Ceramic Flat (WD) Package Using 25-mil Center-to-Center Spacings

    Widebus and EPIC-IIB are trademarks of Texas Instruments Incorporated.

说明

The 'ABT16374A 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 set up 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 a 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

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.

When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, 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.

The SN54ABT16374A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT16374A is characterized for operation from -40°C to 85°C.