STMicroelectronics 54VCXH163245
The 54VCXH163245 is a rad-hard advanced high-speed CMOS, 16-bit bidirectional, multi-purpose transceiver with 3-state outputs and cold sparing. Designed to be used as an interface between a 3.3 V bus and a 1.8 V bus in mixed 3.3 V/1.8 V supply systems, the 54VCXH163245 is able to operate at a minimum of 1.4 V (the functionality is guaranteed at 1.4 V min., the performance are guaranteed at 1.65 V min.). This IC is intended for a two-way asynchronous communication between data buses.| Part No. | 54VCXH163245 |
|---|---|
| Datasheet | 54VCXH163245 Download |
| Manufacturer |  STMicroelectronics |
| Description | Rad-hard 16-bit transceiver |
| Buy | Stock & Price |
FEATURES
● 1.4 V to 3.6 V operating supply● Dual supply bidirectional level shifter
● Separated enable pin for 3-state output
● Internal 26 Ω limiting resistor on each A side output buffer
● Bus hold
● Fail safe
● Cold spare
● Hermetic package
● 300 krad (Si) TID
● SEL-free at 110 MeV.cm²/mg LET
● SMD: 5962F11207
● Mass: 1.5 g
DESCRIPTION
All pins have cold spare buffers to change them to high impedance when VDD is tied to ground. The direction of data transmission is determined by the nDIR inputs. DS11681 - Rev 9 - July 2025 For further information, contact your local STMicroelectronics sales office. 1 Functional description Figure 1. Logic diagram 54VCXH163245 Functional description Inputs mG mDIR L L L H H X Table 1. Truth table Function Bus A Bus B Output Input Input Output Z Z Outputs A=B B=A Z Comments H = high-voltage level L = low-voltage level Z = high impedance X = irrelevant or don’t care DS11681 - Rev 9 page 2/19 54VCXH163245 Functional description 1.1 Cold spare The 54VCXH163245 features a cold spare input and output buffer.
