Renesas IDT74CBTLV3862PYG

Overview

IDT74CBTLV3862PYG from Renesas Electronics is a low-voltage 10-bit bi-directional bus switch with dual active-high and active-low enables, 5Ω on-resistance, 0.25ns max propagation delay, and operation across 2.3V–3.6V supply. It provides high-speed bus isolation in 3.3V systems such as memory expansion interfaces and FPGA I/O bridging.

For engineers reviewing the IDT74CBTLV3862PYG datasheet, IDT74CBTLV3862PYG pinout, IDT74CBTLV3862PYG application, or IDT74CBTLV3862PYG equivalent, key selection criteria include its dual-enable control logic, power-off isolation capability, over-voltage tolerance up to 4.6V, and industrial temperature range (–40°C to +85°C).

Technical Context

The IDT74CBTLV3862PYG implements ten independent analog switches controlled by two complementary enable inputs (OE and OE), enabling flexible bus gating without external logic. Its CMOS transmission-gate architecture delivers symmetrical A↔B conduction with minimal signal distortion.

Designed for hot-swap and partial-power-down scenarios, the device maintains high-impedance isolation when VCC = 0V and tolerates input voltages up to 4.6V regardless of supply state - critical for mixed-voltage domain interfacing and level-shifting applications.

Key Specifications

Pinout & Package

Package: 24-pin Shrink Small Outline Package (SSOP), Green, body size 8.2mm × 3.9mm, 0.635mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74CBTLV3862PWR and 7WBD3862QG8, the IDT74CBTLV3862PYG offers superior industrial-grade ESD (2000V HBM) and latch-up immunity (100mA), making it preferred for factory automation and telecom infrastructure where long-term field reliability is critical.

Availability

IDT74CBTLV3862PYG is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, hot-swappable module interfaces, and industrial backplane isolation requiring stable component supply and long-lifecycle support.

Supply support for IDT74CBTLV3862PYG 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, and IoT applications.

The IDT74CBTLV3862PYG belongs to Renesas' legacy IDT bus switch portfolio, designed specifically for high-speed, low-latency digital signal routing in mixed-voltage embedded systems requiring robust isolation and hot-swap capability.

FAQ

What is the recommended pull-up resistor value for OE on the IDT74CBTLV3862PYG?

The OE pin must be tied to VCC through a pull-up resistor to ensure high-impedance state during power-up. Minimum resistance depends on driver sink capability; typical design uses 10kΩ. The IDT74CBTLV3862PYG datasheet specifies that OE should be held HIGH via external resistor, and values between 4.7kΩ and 47kΩ are commonly used in industrial layouts with adequate noise margin and rise time.

Does the IDT74CBTLV3862PYG support true bidirectional signal flow without direction control pins?

Yes, the IDT74CBTLV3862PYG is inherently bidirectional: each A/B pair functions as a passive analog switch with no internal direction logic. Signals pass equally well from A-to-B or B-to-A when enabled, eliminating need for direction control lines - a key advantage over transceivers. This behavior is confirmed in the functional block diagram and switching characteristics of the IDT74CBTLV3862PYG.

Can the IDT74CBTLV3862PYG be used in a 5V system environment?

The IDT74CBTLV3862PYG is not rated for 5V VCC operation, but its I/O pins tolerate up to 4.6V regardless of VCC state. It can safely interface with 5V peripherals when VCC is supplied at 3.3V or 2.5V, provided input voltages remain ≤4.6V and no current is sourced into VCC. This over-voltage tolerance makes the IDT74CBTLV3862PYG suitable for mixed-voltage interconnects without external protection.

What is the maximum capacitive load the IDT74CBTLV3862PYG can drive while maintaining specified tPD?

The IDT74CBTLV3862PYG propagation delay (tPD ≤ 0.25ns) is characterized with CL = 50pF (for VCC = 3.3V) and CL = 30pF (for VCC = 2.5V), per test circuit definitions. Driving loads beyond these values increases RC delay nonlinearly; for reliable sub-nanosecond timing, total node capacitance (including trace, probe, and load) should remain ≤50pF. This constraint is explicitly defined in the "Test Conditions" table of the IDT74CBTLV3862PYG datasheet.

How does the dual-enable feature (OE and OE) improve system design flexibility with the IDT74CBTLV3862PYG?

The dual-enable architecture of the IDT74CBTLV3862PYG allows direct connection to both active-high and active-low control signals without external inverters - for example, OE can connect to a processor GPIO (active-high), while OE connects to a system reset signal (active-low). This simplifies timing-critical enable sequencing and supports fail-safe isolation strategies. The function table confirms only one combination (OE=H, OE=L) enables conduction; all others force high-Z, enhancing controllability in complex power-management schemes.