CY74FCT16841T

ACTIVE

20-Bit Bus Interface D-Type Latches with 3-State Outputs

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20-Bit Bus Interface D-Type Latches with 3-State Outputs

CY74FCT16841T

ACTIVE

Product details

Parameters

Number of channels (#) 20 Technology Family FCT 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) 70 IOL (Max) (mA) 64 IOH (Max) (mA) -32 ICC (Max) (uA) 500 Features Ultra high speed (tpd <5ns), Partial power down (Ioff), Flow-through pinout open-in-new Find other D-type latch

Package | Pins | Size

SSOP (DL) 56 191 mm² 18.42 x 10.35 open-in-new Find other D-type latch

Features

  • FCT-C speed at 5.5 ns (FCT16841T Com\x92l)
  • Ioff supports partial-power-down mode operation
  • Edge-rate control circuitry for significantly improved noise characteristics
  • Typical output skew < 250 ps
  • ESD > 2000V
  • TSSOP (19.6-mil pitch) and SSOP (25-mil pitch) packages
  • Industrial temperature range of -40°C to +85°C
  • VCC = 5V ± 10%
  • CY74FCT16841T Features:
    • 64 mA sink current, 32 mA source current
    • Typical VOLP (ground bounce) <1.0V at VCC = 5V, TA = 25°C
  • CY74FCT162841T Features:
    • Balanced 24 mA output drivers
    • Reduced system switching noise
    • Typical VOLP (ground bounce) <0.6V at VCC = 5V, TA = 25°C

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Description

The CY74FCT16841T and CY74FCT162841T are 20-bit D-type latches designed for use in bus applications requiring high speed and low power. These devices can be used as two independent 10-bit latches, or as a single 10-bit latch, or as a single 20-bit latch by connecting the Output Enable (OE\) and Latch (LE) inputs. Flow-through pinout and small shrink packaging aid in simplifying board layout.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The CY74FCT16841T is ideally suited for driving high-capacitance loads and low-impedance backplanes.

The CY74FCT162841T has 24-mA balanced output drivers with current limiting resistors in the outputs. This reduces the need for external terminating resistors and provides for minimal undershoot and reduced ground bounce. The CY74FCT162841T is ideal for driving transmission lines.

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Technical documentation

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Type Title Date
* Data sheet 20-Bit Latches datasheet (Rev. A) Nov. 22, 2000
Selection guide Logic Guide (Rev. AB) Jun. 12, 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
User guide LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application note Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
User guide CYFCT Parameter Measurement Information Apr. 02, 2001
Selection guide Advanced Bus Interface Logic Selection Guide Jan. 09, 2001

Design & development

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SSOP (DL) 56 View options

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