General description
The 74LVT640 is a high-performance BiCMOS product designed for VCC operation at 3.3 V.
This device is an octal transceiver featuring inverting 3-state bus compatible outputs in both send and receive directions. The control function implementation minimizes external timing requirements. The device features an output enable (OE) input for easy cascading and a direction (DIR) input for direction control.
Features and benefits
⢠3-state buffers
⢠Octal bidirectional bus interface
⢠Input and output interface capability to systems at 5 V supply
⢠TTL input and output switching levels
⢠Output capability: +64 mA and -32 mA
⢠Bus-hold data inputs eliminate the need for external pull-up resistors for unused inputs
⢠Live insertion/extraction permitted
⢠Power-up 3-state
⢠No bus current loading when output is tied to 5 V bus
⢠Latch-up protection:
â JESD78: exceeds 500 mA
⢠ESD protection:
â MIL STD 883 method 3015: exceeds 2000 V
â MM JESD22-A115-A exceeds 200 V
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