32-bit devices (SN74CBT34X245/SN74CBT32245/SN74CB3Q32245/SN74CBTK32245) have OEs for four 8-bit groups. Smaller devices (24…8 bits) have no more than two groups.
To get OEs for all channels, you need to go down to 4 bits: SN74CBT3125, TS12A44513…
George:
You can use a couple of 32-bit FET bus switch, like the SN74CBT32245 or SN74CBT34X245 (figure 1) or maybe you could use a CPLD and build inside a "n" bit 2-to-1 digital multiplexer (figure 2). Propagation delay offsets are need to be added…
The information on the Avnet web page is wrong; the SN74CBTK32245 has been discontinued.
The product discontinuance notification was sent out in April. It said:
Due to an equipment End-Of-Life notice from our substrate supplier, we are phasing out certain…