TK74H373 New Product Announcement

Tekmos now offers the 250ºC High Temperature TK74H373 Tri-State Octal D-Type Transparent Latch. It has the same pinout as its predecessor, the 74H373 which was designed for less harsh environments.

The TK74H373 is designed for use in extreme temperature environments, such as down-hole oil drilling and wireline applications. It can also be used in jet engine applications where it is necessary to interface directly to high temperature structures. The part uses a special high temperature SOI process, with tungsten interconnect, to prevent metal migration. It has gold bond pads with gold bonding to improve bond reliability.

The TK74H373 features 8-bit registers with totem-pole 3-state outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance state and increased high-logic level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight latches of the TK74H373 are transparent D-type latches meaning that while the enable (G) is HIGH the Q outputs will follow the data (D) inputs. When the enable is taken LOW the output will be latched at the level of the data that was set up.

The TK74H373 is the newest Tekmos high temperature standard product. Tekmos also offers ASIC capability for designs that must be kept proprietary for IP reasons. </

Date

2015-08-01