TC7SZ126F Toshiba Integrated Circuit (SOT23 (5-Pin)) In Stock
Toshiba TC7SZ126F is a single-channel tri-state bus buffer in a 5-pin SOT-25 package with 13ns propagation delay at 15pF load and 32mA output drive. Supports 1.65V to 5.5V supply range for mixed-voltage systems. Available from stock with worldwide shipping.
- Manufacturer
- Toshiba
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TC7SZ126F 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
What are the key features of TC7SZ126F?
- Single-channel tri-state bus buffer with active-high enable, 13ns propagation delay at 15pF and 32mA sink/source current for fast signal switching
- Wide supply voltage range from 1.65V to 5.5V enabling use in mixed 1.8V, 2.5V, 3.3V, and 5V logic systems without level-shift circuitry
- Ultra-compact 5-pin SOT-25 (SOT-23) package minimizes PCB footprint in space-constrained handheld, wearable, and IoT designs
- LVC/Z family CMOS technology delivers low static power consumption ideal for battery-powered and low-quiescent applications
What is TC7SZ126F used for?
The TC7SZ126F is used as a signal isolation and bus contention prevention buffer in microcontroller I/O expansion, SPI/I2C bus arbitration, and mixed-voltage interface designs where a single gate is needed to enable or disable a signal path. Its 1.65V to 5.5V supply range and active-high tri-state control make it ideal for level-translating applications between 3.3V MCU I/O and 5V peripheral buses in industrial sensors, wearables, and IoT nodes. The compact SOT-25 package also suits space-critical designs such as USB accessories, portable medical devices, and smartcard readers where board space is at a premium.
What are the specifications of TC7SZ126F?
| YTEOL | 0 |
| Control Type | ENABLE HIGH |
| Count Direction | UNIDIRECTIONAL |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G5 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.032A |
| Number of Bits | 1 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 50mA |
| Prop. Delay@Nom-Sup | 6ns |
| Propagation Delay (tpd) | 11.5ns |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the TC7SZ126F datasheet?
TC7SZ126F Datasheet DownloadOfficial datasheet from Toshiba
What are equivalent replacements for TC7SZ126F?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the propagation delay of TC7SZ126F, and at what load conditions is it specified?
TC7SZ126F has a propagation delay of 13ns measured at a 15pF capacitive load. At the specified 50pF maximum load capacitance the delay increases, so designers should account for board trace and input capacitance when targeting sub-15ns switching margins in high-speed 3.3V or 5V logic bus designs.
Can TC7SZ126F interface directly between a 3.3V MCU and a 5V peripheral without additional level-shift components?
Yes, TC7SZ126F operates from 1.65V to 5.5V supply and its input thresholds track VCC, so it can be powered from the higher 5V rail while accepting 3.3V logic inputs from the MCU side. This allows direct 3.3V-to-5V bus buffering with a single 5-pin SOT-25 device and no external resistors, provided the 32mA output drive current is sufficient for the target load.
How does TC7SZ126F tri-state control work, and in what bus-sharing designs is it most useful?
The TC7SZ126F enables its output when the OE pin is driven high and places it in a high-impedance tri-state when OE is low. This active-high enable makes it straightforward to arbitrate shared data buses where multiple drivers must be prevented from outputting simultaneously, such as multi-master SPI buses, memory expansion circuits, and multiplexed sensor interfaces using 1-bit control signals.
What output drive current does TC7SZ126F provide, and is it suitable for driving longer PCB traces?
TC7SZ126F sources and sinks up to 32mA (max I(ol) = 0.032A) at its output. This drive strength is adequate for board-level traces up to several centimeters at low frequencies, but for traces longer than 10cm or signals above 50MHz, the 50pF load capacitance limit and propagation delay should be budgeted carefully to avoid signal integrity degradation.
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