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Product attributes Property Value
Manufacturer Toshiba Semiconductor and Storage
Product Series TC7SZ
Packaging Cut Tape (CT) |
Part Status Active
Logic Type Buffer, Non-Inverting
Number of Elements 1
Number of Bits per Element 1
Input Type -
Output Type Push-Pull
Current - Output High, Low 32mA, 32mA
Voltage - Supply 1.65V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SMV

The TC7SZ34F is a single non-inverting buffer from Toshiba, part of the TC7SZ logic family. It operates from 1.65V to 5.5V and features a push-pull output capable of sourcing or sinking 32mA. This makes it a versatile solution for signal buffering, level shifting, and LED driving in portable and low-power applications. The device is available in a compact SC-74A (SOT-753) package.

  • Ultra-Wide Voltage Range (1.65V-5.5V): Compatible with 1.8V, 2.5V, 3.3V, and 5V systems, reducing inventory.
  • High Drive Current (32mA): Can drive LEDs or heavy loads directly, saving external components.
  • Push-Pull Output: Provides clean, fast signal transitions without external pull-ups.
  • Small SOT-753 Package: Ideal for space-constrained PCB designs.

Portable Electronics Signal Buffering

In smartphones or wearables, the TC7SZ34F buffers clock or data signals between low-voltage SoCs and peripherals. Its 1.65V-5.5V range allows it to work with 1.8V or 3.3V logic, and the tiny SOT-753 package fits tight layouts.

Level Shifting for I2C/SPI

When connecting a 1.8V sensor to a 3.3V MCU, this buffer can shift levels. The push-pull output ensures fast rise times, maintaining signal integrity at high clock rates.

Driving Small LEDs

With 32mA output current, the buffer can directly drive indicator LEDs. The push-pull output eliminates the need for external transistors, reducing component count.

Oscillator Buffer

For crystal or MEMS oscillators, this buffer isolates the oscillator from load variations. This ensures stable frequency output and prevents frequency pulling.

Battery-Powered IoT Devices

In battery-operated sensors, the buffer operates down to 1.65V, maximizing battery life. The low quiescent current is ideal for always-on applications.

FPGA Configuration Signal Buffering

When configuring FPGAs, this buffer strengthens weak signals from a configuration PROM. The wide voltage range matches various FPGA I/O banks.

Q: What is the logic family of the TC7SZ34F?
A: It belongs to the TC7SZ family, which is a high-speed CMOS logic series.
Q: What is the function of this IC?
A: It is a single (1-channel) non-inverting buffer with push-pull output.
Q: How many channels does it have?
A: It has 1 channel, making it ideal for simple signal buffering.
Q: What is the output type?
A: The output is push-pull, providing strong drive without the need for pull-up resistors.
Q: What is the voltage range?
A: It operates from 1.65V to 5.5V, covering both 1.8V, 2.5V, 3.3V, and 5V logic levels.
Q: What package is available?
A: It comes in a small SC-74A (SOT-753) package, ideal for space-constrained designs.
Base Product Number : TC7SZ34
1.65V-5.5V Buffer Level Shifting Logic IC Non-Inverting Push-Pull SC-74A Single Buffer TC7SZ Toshiba
Q: What is the logic family of the TC7SZ34F?
A: It belongs to the TC7SZ family, which is a high-speed CMOS logic series.
Q: What is the function of this IC?
A: It is a single (1-channel) non-inverting buffer with push-pull output.
Q: How many channels does it have?
A: It has 1 channel, making it ideal for simple signal buffering.
Q: What is the output type?
A: The output is push-pull, providing strong drive without the need for pull-up resistors.
Q: What is the voltage range?
A: It operates from 1.65V to 5.5V, covering both 1.8V, 2.5V, 3.3V, and 5V logic levels.
Q: What package is available?
A: It comes in a small SC-74A (SOT-753) package, ideal for space-constrained designs.