TC7SPN3125TU CMOS Digital Integrated Circuits Silicon Monolithic TC7SPN3125TU 1. Functional Description Low-Voltage, Low-Power 1-Bit Dual-Supply Bus Buffer 2. General The TC7SPN3125TU is an advanced high-speed CMOS 1-bit dual supply voltage interface bus buffer fabricated with silicon gate CMOS technology. It is also designed with over voltage tolerant inputs and outputs up to 3.6 V. Designed for use as an interface between a 1.2 V, 1.5 V, 1.8 V, or 2.5 V bus and a 1.8 V, 2.5 V or 3.3 V bus in mixed 1.2 V, 1.5 V, 1.8 V or 2.5 V/1.8 V, 2.5 V or 3.3 V supply systems. The A-input interfaces with the 1.2 V, 1.5 V, 1.8 V or 2.5 V bus, the B-output with the 1.8 V, 2.5 V, 3.3 V bus. The enable input (OE) can be used to disable the device so that the signal lines are effectively isolated. All inputs are equipped with protection circuits against static discharge or transient excess voltage. 3. Features (Note) (1) Level converter for interfacing 1.2 V to 1.8 V, 1.2 V to 2.5 V, 1.2 V to 3.3 V, 1.5 V to 2.5 V, 1.5 V to 3.3 V, 1.8 V to 2.5 V, 1.8 V to 3.3 V, 2.5 V to 3.3 V system. (2) High-speed operation: t = 13.7 ns (max) (V = 2.5 0.2 V, V = 3.3 0.3 V) pd CCA CCB t = 14.8 ns (max) (V = 1.8 0.15 V, V = 3.3 0.3 V) pd CCA CCB t = 16.0 ns (max) (V = 1.5 0.1 V, V = 3.3 0.3 V) pd CCA CCB t = 29 ns (max) (V = 1.2 0.1 V, V = 3.3 0.3 V) pd CCA CCB t = 18.5 ns (max) (V = 1.8 0.15 V, V = 2.5 0.2 V) pd CCA CCB t = 19.7 ns (max) (V = 1.5 0.1 V, V = 2.5 0.2 V) pd CCA CCB t = 33 ns (max) (V = 1.2 0.1 V, V = 2.5 0.2 V) pd CCA CCB t = 43 ns (max) (V = 1.2 0.1 V, V = 1.8 0.15 V) pd CCA CCB (3) Output current: I /I = 3 mA (min) (V = 3.0 V) OHB OLB CCB I /I = 2 mA (min) (V = 2.3 V) OHB OLB CCB I /I = 0.5 mA (min) (V = 1.65 V) OHB OLB CCB (4) Ultra-small package: UF6 (5) Low power dissipation: By using the new circuit, the power consumption is reduced significantly when OE =. Suitable for battery-driven applications such as PDAs and cellular phones. (6) Floating A-bus is permitted. (when OE =) (7) 3.6 V tolerance and power-down protection are provided to all inputs and outputs. Note: Do not apply a signal to any bus pins when it is in the output mode. Damage may result. Start of commercial production 2005-07 2021 2021-02-05 1 Toshiba Electronic Devices & Storage Corporation Rev.2.0TC7SPN3125TU 4. Packaging UF6 5. Pin Assignment 6. Marking 2021 2021-02-05 2 Toshiba Electronic Devices & Storage Corporation Rev.2.0