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SN74CBTLV3245APWR

Texas Instruments

Bus Switch 1-Element CMOS 8-IN 20-Pin TSSOP T/R

Manufacturer Part #: SN74CBTLV3245APWR

Alternate Part #: SN74CBTLV3245APWR


legend RoHS Compliant

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Information

The SN74CBTLV3245 provides eight bits of high-speed bus switching in a standard 245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports.

This device is fully specified for partial-power-down applications using Ioff . The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.

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 drive.

Key Features

  • Standard 245-Type Pinout
  • 5-Ω Switch Connection Between Two Ports
  • Rail-to-Rail Switching on Data I/O Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 200-V Machine Model (A115-A)
    • 2000-V Human-Body Model (A114-A)

Technical Attributes

Description
Value
Find similar Parts
Maximum Low Level Output Current
128 mA
Mounting
Surface Mount
Configuration
8 x 1:1
Maximum Propagation Delay Time @ Maximum CL
0.25@3.3V ns
Max Processing Temp
260
Lead Finish
Gold
Propagation Delay Test Condition
50 pF
Operating Temperature
-40 to 85 °C
Logic Function
Bus Switch
Maximum High Level Output Current
-128 mA
Maximum On Resistance
27 Ohm
Number of Outputs per Chip
8
Minimum Operating Supply Voltage
2.3 V
Typical Operating Supply Voltage
3.3 V
Maximum Quiescent Current
20 uA
Number of Inputs per Chip
8
Number of Elements per Chip
1
Fabrication Technology
CMOS
Maximum Operating Supply Voltage
3.6 V

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8542390000
HTSN:
8542310000
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101

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