RHFAC164245K1 STMicroelectronics

54AC164245 Rad-hard 16-bit transceiver 3.3 V to 5 V bidirectional level shifter Datasheet - production data Description The 54AC164245 is a rad-hard advanced high-speed CMOS, Schmitt trigger, 16-bit, bidirectional, multi-purpose transceiver with 3-state outputs and cold sparing. Designed for use as an interface between a 5 V bus and a 3.3 V bus in mixed 5 V/3.3 V supply systems, it achieves high-speed operation while maintaining the CMOS low-power dissipation. All pins have cold spare buffers to change them to high impedance when V is tied to ground. DD This IC is intended for two-way asynchronous communication between the data buses. The direction of the data transmission is determined by the nDIR inputs. The A port interfaces with the 3.3 V bus but can also operate at 2.3 V. The B port operates with the 5 V bus. Table 1: Device summary Features RHFAC164245K1 RHFAC164245K01V Parameter Fully compatible with 54ACS164245 5962R9858008VYC SMD Dual supply bidirectional level shifter Engineering model QML-V flight Extended voltage range from 2.3 V to 5.5 V Quality level Separated enable pin for 3-state output Flat-48 Package Schmidt-triggered I/Os: 100 mV hysteresis Gold Lead finish Internal 26 limiting resistor on each I/O 1.50 g Mass High speed: Tpd = 8 ns maximum (1) Fail safe Yes EPPL Cold spare Temp. range -55 C to 125 C Hermetic package 100 krad (Si) at any Mil1019 dose rate Notes: 2 SEL immune to 110 MeV.cm /mg LET ions (1) EPPL = ESA preferred part list RHA QML-V qualified July 2015 DocID18093 Rev 5 1/25 www.st.com This is information on a product in full production. Contents 54AC164245 Contents 1 Functional description .................................................................... 3 1.1 Cold spare ......................................................................................... 4 1.2 Power-up ........................................................................................... 4 1.3 Pin connections ................................................................................. 4 2 Absolute maximum ratings and operating conditions ................. 6 3 Electrical characteristics ................................................................ 8 4 Radiations ...................................................................................... 16 5 Test circuit ..................................................................................... 17 6 Package information ..................................................................... 20 6.1 Ceramic Flat-48 package information ............................................. 21 7 Ordering information ..................................................................... 22 8 Other information .......................................................................... 23 8.1 Data code ........................................................................................ 23 8.2 Documentation ................................................................................ 23 9 Revision history ............................................................................ 24 2/25 DocID18093 Rev 5