SN74CBTLV3245

Features:

Standard '245-Type Pinout
5- Switch Connection Between Two Ports
Isolation Under Power-Off Conditions
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 Shrink Small-Outline (DB), Thin Very Small-Outline (DGV), Small-Outline (DW), and Thin Shrink Small-Outline (PW) Packages


Pinout




Specifications

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 4.6 V
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, I_IK (V_I/O < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 50 mA
Package thermal impedance, _JA (see Note 2): DB package . . . . . . . . . . .. . .  . . . . . . . . . . . . . . . . 115°C/W
                                                                            DGV package . . . . . . . . . . . . . . . .  .. . . . . . . . . . . . 146°C/W
                                                                            DW package . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . 97°C/W
                                                                            PW package . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . 128°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

            2. The package thermal impedance is calculated in accordance with JESD 51.


Description

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 SN74CBTLV3245 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 a high-impedance state exists between the two ports.

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

The SN74CBTLV3245 is characterized for operation from 40°C to 85°C.