SN54LVT16952

Application

Audio                                www.ti.com/audio
Automotive                       www.ti.com/automotive
Broadband                        www.ti.com/broadband
Digital Control                   www.ti.com/digitalcontrol
Military                              www.ti.com/military
Optical Networking           www.ti.com/opticalnetwork
Security                            www.ti.com/security
Telephony                        www.ti.com/telephony
Video & Imaging               www.ti.com/video
Wireless                           www.ti.com/wireless


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 7 V
Voltage range applied to any output in the high state or power-off state,
VO (see Note 1) . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . ... 0.5 V to 7 V
Current into any output in the low state, IO: SN54LVT16952  . . . . . . . . . . . . . . . .. . . . . . 96 mA
                                                          SN74LVT16952 . . . . . . . . . . . . . . . . . . . . . . .. . . . . 128 mA
Current into any output in the high state, I_O (see Note 2): SN54LVT16952 .. . . . . . . . . . . 48 mA
                                                                                             SN74LVT16952 . . . . .  . . . . . . 64 mA
Input clamp current, I_IK (V_I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 50 mA
Output clamp current, I_OK (V_O < 0) . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Package thermal impedance, q_JA (see Note 3): DGG package  . . . . . . . . . . . . . . . .. . . . . 89°C/W
                                                                           DL package . . . . . . . . . . . . . . . . .  . . . . . 94°C/W
Maximum power dissipation at TA = 55°C (in still air) (see Note 3): DGG package . . . . . . . . . 1 W
                                                                                                           DL package  .. . . . . . . . 1.4 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. This current flows only when the output is in the high state and V_O > V_CC.
             3. The package thermal impedance is calculated in accordance with JESD 51. 

Description

The 'LVT16952 are 16-bit registered transceivers designed for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or B bus is stored in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input provided that the clock-enable (CLKENAB or CLKENBA) input is low. Taking the output-enable (OEAB or OEAB) input low accesses the data on either port.

Active bus-hold circuitry of LVT16952 is provided to hold unused or floating data inputs at a valid logic level.