54C164245 Datasheet, PDF (1/23 Pages) STMicroelectronics – Rad-hard 16-bit transceiver 3.3 V to 5 V bidirectional level shifter

54AC164245
Rad-hard 16-bit transceiver 3.3 V to 5 V bidirectional level shifter
Datasheet - production data
• Fail safe
• Cold spare
• Hermetic package
• 100 krad (Si) at any Mil1019 dose rate
• SEL immune to 110MeV.cm²/mg LET ions
• RHA QML-V qualified
Ceramic Flat-48
The upper metallic lid is not electrically connected to
any pins, nor to the IC die inside the package
Features
• Fully compatible with 54ACS164245
• Dual supply bidirectional level shifter
• Extended voltage range from 2.3 V to 5.5 V
• Separated enable pin for 3-state output
• Schmidt-triggered I/Os: 100 mV hysteresis
• Internal 26 Ω limiting resistor on each I/O
• High speed: Tpd = 8 ns maximum
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_DD is tied to ground.
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
Order codes
SMD pin
Quality level Package Lead finish Mass EPPL Temp. range
RHFAC164245K1
-
Engineering
model
RHRAC164245K01V 5962R9858008VYC QML-V flight
Flat-48
Gold
-
1.50 g
Yes
-55 °C to
125 °C
April 2014
This is information on a product in full production.
DocID18093 Rev 4
1/23
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