TC7WZ34FK(TE85L,F) Toshiba Integrated Circuit (Small Outline Packages) In Stock
Toshiba TC7WZ34FK(TE85L,F) is a triple single-input LVC-family logic buffer in an 8-pin TSSOP package, supporting up to 50 pF load capacitance with 32 mA output sink current. Designed for 1.65 V to 5.5 V supply operation, it provides three independent non-inverting buffer channels for signal fan-out and level driving in compact digital logic designs.
- Manufacturer
- Toshiba
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TC7WZ34FK(TE85L,F) Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Triple single-input buffer configuration providing 3 independent non-inverting drive channels in a single 8-pin TSSOP package
- LVC/LCX/Z family logic with 1.65 V to 5.5 V supply range enabling mixed-voltage system interfacing and level translation
- 32 mA output sink current and 50 pF load drive capability for robust clock and data signal fan-out without external buffers
- 8-pin TSSOP (SSOP-8) compact package minimizing board area in space-constrained portable and handheld designs
- CMOS/TTL compatible inputs ensuring reliable interfacing with microcontrollers, FPGAs, and legacy 5 V logic at full LVC speed
Applications
The TC7WZ34FK is used in portable consumer electronics, mobile devices, and IoT nodes where a triple logic buffer is needed to drive multiple 50 pF loads from a single 1.8 V or 3.3 V logic source without exceeding the driving IC's output current budget. In digital camera and media player designs, it buffers clock and data lines from a low-power microcontroller to 3 separate peripheral ICs, preventing bus loading that would degrade signal rise times above acceptable limits. PCB designers also deploy this device in LED control circuits, where its 32 mA sink current per channel directly drives LEDs through a current-limiting resistor without a separate transistor stage.
Specifications
| YTEOL | 0 |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G8 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUFFER |
| Max I(ol) | 0.032A |
| Number of Functions | 3 |
| Number of Inputs | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Power Supply Current-Max (ICC) | 0.01mA |
| Prop. Delay@Nom-Sup | 5.1ns |
| Propagation Delay (tpd) | 10ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TC7WZ34FK(TE85L,F):
suggested
suggested
Frequently Asked Questions
How many buffer channels does the TC7WZ34FK provide, and can each drive a 50 pF load independently?
The TC7WZ34FK contains 3 independent single-input non-inverting buffer channels, each rated to drive a 50 pF capacitive load with 32 mA sink current. All 3 channels operate simultaneously from a single 1.65 V to 5.5 V supply rail, allowing a designer to fan out one clock or data signal to 3 separate destinations—such as 3 sensor ICs each with 20–30 pF input capacitance—while maintaining clean logic transitions and preventing source overload.
What supply voltage range does the TC7WZ34FK support, and how does that simplify interfacing between 1.8 V and 3.3 V subsystems?
The TC7WZ34FK operates from 1.65 V to 5.5 V, covering 1.8 V, 2.5 V, 3.3 V, and 5 V supply rails within a single device. In a system where a 1.8 V microcontroller must drive a 3.3 V peripheral, powering the TC7WZ34FK at 3.3 V while its LVC-family inputs accept 1.8 V CMOS logic levels provides automatic level translation without additional voltage translator ICs, reducing component count by at least 1 chip and simplifying the power rail partitioning.
When is the TC7WZ34FK a better choice than a discrete buffer transistor for driving 3 signal lines at 32 mA each?
Using the TC7WZ34FK avoids 6 discrete components (3 transistors and 3 base resistors) needed for 3 individual NPN or N-channel buffer stages, saving approximately 15–20 mm² of board area in an TSSOP footprint versus 3 SOT-23 transistors placed separately. Its LVC logic input thresholds are guaranteed to switch cleanly between 0 V and VCC levels, whereas discrete transistor circuits require careful resistor selection to match driving source impedance; the TC7WZ34FK operates reliably across the 1.65 V to 5.5 V range at propagation delays below 10 ns at 3.3 V.
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