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TC7QPB9306FK, TC7QPB9307FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7QPB9306FK, TC7QPB9307FK
Low Voltage / Low Power 4-Bit Dual Supply Bus Switch
The TC7QPB9306FK and TC7QPB9307FK are CMOS 4-bit dual-supply bus switches that can provide an interface between two nodes at different voltage levels. These devices can be connected to two independent power supplies. VCCA supports 1.8 V, 2.5 V and 3.3 V power supplies, whereas VCCB supports 2.5 V, 3.3 V and 5.0 V power supplies.
Bidirectional level-shifting is possible by simply adding external pull-up resistors between the An/Bn data lines and the VCCA / VCCB supplies. There is no restriction on the relative magnitude of the An and Bn voltages; both the An and Bn data lines can be pulled up to arbitrary power supplies.