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3.3-V CMOS 18-Bit Universal Bus Driver with 3-State Outputs


Package | PIN: DGG | 56
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.51
10-24 $2.25
25-99 $2.09
100-249 $1.82
250-499 $1.68
500-749 $1.41
750-999 $1.16
1000+ $1.06


  • Member of the Texas Instruments Widebus™ Family
  • Ideal for Use in PC133 Register DIMM
  • Typical Output Skew . . . <250 ps
  • VCC = 3.3 V ± 0.3 V . . . Normal Range
  • VCC = 2.7 V to 3.6 V . . . Extended Range
  • VCC = 2.5 V ± 0.2 V
  • Rail-to-Rail Output Swing for Increased Noise Margin
  • Balanced Output Drivers . . . ±18 mA
  • Low Switching Noise
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.

Texas Instruments  SN74ALVCF162835GR

This 18-bit universal bus driver is designed for 2.3-V to 3.6-V VCC operation.

Data flow from A to Y is controlled by the output-enable (OE)\ input. The device operates in the transparent mode when the latch-enable (LE) input is high. When LE is low, the A data is latched if the clock (CLK) input is held at a high or low logic level. If LE is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK. When OE\ is high, the outputs are in the high-impedance state.

The SN74ALVCF162835 has series damping resistors in the device output structure that reduce switching noise in 128-MB and 256-MB SDRAM modules. Designed with a drive capability of ±18 mA, this device is a midway drive between the SN74ALVC162835 (±12 mA) and SN74ALVC16835 (±24 mA).

The SN74ALVCF162835 is a faster version of the SN74ALVC162835. It is suitable for PC133 applications and, particularly, SDRAM modules clocked at 133 MHz.

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.