SN74TVC16222A

Features:

 Member of the Texas Instruments Widebus Family
 Designed to Be Used in Voltage-Limiting Applications
 6.5- On-State Connection Between Ports A and B
 Flow-Through Pinout for Ease of Printed Circuit Board Trace Routing
 Direct Interface With GTL+ Levels
 ESD Protection Exceeds JESD 22
    − 2000-V Human-Body Model (A114-A)
    − 200-V Machine Model (A115-A)
    − 1000-V Charged-Device Model (C101)


Pinout




Specifications

Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input/output voltage range, V_I/O (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . −0.5 V to 7 V
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, I_IK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. −50 mA
Package thermal impedance, JA (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
                                                                           DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   58°C/W
                                                                           DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 63°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
NOTES: 1. The input and input/output negative-voltage ratings may be exceeded if the input and input/output clamp-current ratings are observed.
             2. The package thermal impedance is calculated in accordance with JESD 51-7.


Description

The SN74TVC16222A provides 23 parallel NMOS pass transistors with a common gate. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device SN74TVC16222A can be used as a 22-bit switch, with the gates cascaded together to a reference transistor.The low-voltage side of each pass transistor is limited to a voltage set by the reference transistor. This is done to protect components with inputs that are sensitive to high-state voltage-level overshoots. (See Application Information in this data sheet.)

All of the SN74TVC16222A transistors in the TVC array have the same electrical characteristics; therefore, any one of them can be used as the reference transistor. Because, within the device, the characteristics from transistor to transistor are equal, the maximum output high-state voltage (VOH) is approximately the reference voltage (VREF), with minimal deviation from one output to another. This is a benefit of the TVC solution over discrete devices. Because the fabrication of the transistors is symmetrical, either port connection of each bit can be used as the low-voltage side, and the I/O signals are bidirectional through each FET.