Renesas 74CBTLV16210PAG

Overview

74CBTLV16210PAG from Renesas Electronics is a low-voltage 20-bit bus switch IC operating as either a single 20-bit or dual 10-bit bi-directional switch, featuring 5Ω typical ON-resistance, <250ps propagation delay, and operation across 2.3V–3.6V supply range for high-speed 3.3V bus isolation in industrial systems.

For engineers reviewing the 74CBTLV16210PAG datasheet, 74CBTLV16210PAG pinout, 74CBTLV16210PAG application, or 74CBTLV16210PAG equivalent, key selection criteria include bidirectional switching performance, power-off isolation capability, over-voltage tolerance up to 4.6V, industrial temperature support (–40°C to +85°C), and TSSOP-48 package compatibility with dense PCB layouts.

Technical Context

The 74CBTLV16210PAG implements two independent 10-bit bus switches controlled by separate active-low OE inputs (1OE and 2OE), enabling selective isolation of A/B port pairs. Each switch exhibits near-zero propagation delay due to ultra-low R_ON (5–40Ω depending on V_CC and I_O) and minimal parasitic capacitance (C_IO(OFF) = 6.5pF typical).

It supports true power-off isolation: when V_CC = 0V, I_OFF ≤ 10µA ensures signal integrity across ports, while over-voltage tolerance (VI up to 4.6V) allows safe interfacing with mixed-voltage subsystems without level shifters. Latch-up immunity exceeds 100mA per JEDEC JESD78.

Key Specifications

Pinout & Package

74CBTLV16210PAG is housed in a 48-pin Thin Shrink Small Outline Package (TSSOP), measuring 12.5mm × 6.1mm × 1.2mm, with 0.5mm pitch and exposed thermal pad (not electrically connected). Pin 1 is marked by a dot; pin 24 and pin 48 are GND; pin 25 is V_CC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus switching applications.

Compared with SN74CBTLV16210PAG and 74LVC162245APAG, the 74CBTLV16210PAG uniquely delivers true bidirectional, zero-delay switching with guaranteed isolation at V_CC = 0V - critical for systems requiring live insertion, partial power-down, or mixed-voltage domain bridging without added protection circuitry.

Availability

74CBTLV16210PAG is available at Aetrix Electronics and suitable for industrial PLC backplanes, PCIe Gen2 interconnects, DDR3 multiplexing, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74CBTLV16210PAG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT applications.

The 74CBTLV16210PAG belongs to Renesas' high-speed logic portfolio, designed specifically for low-latency, low-power bus switching in industrial and communications equipment where signal integrity, voltage tolerance, and power sequencing reliability are critical.

FAQ

What is the maximum allowable input voltage for 74CBTLV16210PAG when V_CC is powered down?

The 74CBTLV16210PAG supports over-voltage tolerant inputs up to 4.6V regardless of V_CC state. When V_CC = 0V, VI may safely reach –0.5V to 4.6V per absolute maximum ratings, enabling reliable hot-plug operation and mixed-voltage interface without external clamping. This behavior is confirmed in the Absolute Maximum Ratings table and verified in DC Electrical Characteristics under V_CC = 0V conditions.

Does 74CBTLV16210PAG require external pull-up resistors on OE pins?

Yes - the 74CBTLV16210PAG datasheet explicitly recommends tying 1OE and 2OE to V_CC through pull-up resistors to ensure high-impedance state during power-up or brownout. Without this, undefined OE states could cause unintended bus connection or contention. The functional description confirms OE must be held HIGH to disconnect ports, and the Application Note section emphasizes this as a design requirement for robust power sequencing.

What is the typical ON-resistance of 74CBTLV16210PAG at 2.5V supply?

At V_CC = 2.5V ± 0.2V, the 74CBTLV16210PAG exhibits a typical R_ON of 5Ω (measured at VI = 0V, IO = 64mA) and 10Ω (at VI = 2.4V, IO = 15mA), per the DC Electrical Characteristics table. These values reflect actual measured channel resistance under defined load conditions and directly impact voltage drop and signal attenuation in high-speed data paths.

Can 74CBTLV16210PAG be used in a 5V system environment?

The 74CBTLV16210PAG is not rated for 5V V_CC operation (max V_CC = 4.6V absolute, recommended 2.3–3.6V), but its inputs tolerate up to 4.6V regardless of supply. It can interface with 5V signals only if clamped or attenuated to ≤4.6V - direct 5V connection violates absolute maximum ratings and risks permanent damage. Use only in 3.3V or lower V_CC systems with over-voltage-safe signaling.

How does 74CBTLV16210PAG achieve power-off isolation?

The 74CBTLV16210PAG achieves power-off isolation via intrinsic MOSFET channel cutoff when V_CC = 0V, limiting leakage current to ≤10µA (I_OFF) between A and B ports. This is validated in DC Electrical Characteristics and enables safe signal blocking during hot-swap, standby, or partial system shutdown - a key differentiator from standard transceivers that require active V_CC to maintain high-Z states.