Texas Instruments CY74FCT162827BTPVC

Overview

CY74FCT162827BTPVC from Texas Instruments is a 20-bit non-inverting 3-state buffer/line driver with dual 10-bit sections, balanced 24 mA output drivers, I_off partial-power-down support, and 5.0 V ±10% supply operation. It delivers low ground bounce (<0.6 V typical), sub-5 ns propagation delay (t_PLH/t_PHL ≤ 5.0 ns at CL = 50 pF), and operates across −40°C to +85°C - ideal for high-speed backplane and transmission-line interfacing in industrial control systems.

For engineers reviewing the CY74FCT162827BTPVC datasheet, CY74FCT162827BTPVC pinout, CY74FCT162827BTPVC application, or CY74FCT162827BTPVC equivalent, key selection criteria include its 24 mA balanced drive strength, 56-pin SSOP (O56) package, I_off-enabled power-down safety, and guaranteed 5.0 ns max propagation delay under industrial temperature and load conditions.

Technical Context

The CY74FCT162827BTPVC implements two independent 10-bit buffer sections, each with NANDed output-enable inputs (OE1/OE2) enabling flexible gating of 10-bit groups. Its output drivers integrate internal current-limiting resistors to suppress undershoot and reduce external termination needs.

This device uses FCT logic family architecture with TTL-compatible input thresholds (V_IL = 0.8 V, V_VIH = 2.0 V), 5 V supply-only operation, and I_off circuitry that disables outputs and blocks reverse current when V_CC = 0 V - critical for hot-swap and mixed-voltage system interoperability.

Key Specifications

Pinout & Package

Package: 56-pin SSOP (O56), 300-mil body width, 0.025-inch pitch, 1.2 mm max height - compatible with standard SSOP reflow profiles and IPC-7351 land patterns.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit buffer applications.

Compared with CY74FCT162827CTPVC, the CY74FCT162827BTPVC trades 0.8 ns of speed margin for broader availability and lower unit cost; versus SN74FCT162827BPVCT, it offers identical performance but originates from Cypress' pre-acquisition qualification flow - both meet full industrial temp and reliability requirements.

Availability

CY74FCT162827BTPVC is available at Aetrix Electronics and suitable for industrial backplane interface, high-speed data bus isolation, and transmission-line driver applications requiring stable component supply, long-term lifecycle support, and guaranteed SSOP packaging consistency.

Supply support for CY74FCT162827BTPVC 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability industrial and automotive ICs.

The CY74FCT162827BTPVC belongs to TI's FCT logic family - engineered for noise-immune, high-drive 5 V bus interfacing in industrial control, test equipment, and legacy system upgrades where timing precision and power-down safety are mandatory.

FAQ

What is the maximum propagation delay specification for CY74FCT162827BTPVC?

The CY74FCT162827BTPVC has a maximum propagation delay of 5.0 ns under standard test conditions (CL = 50 pF, RL = 500 Ω, V_CC = 4.5 V to 5.5 V, TA = −40°C to +85°C). This value applies to both t_PLH and t_PHL and is verified across the full industrial temperature range - making CY74FCT162827BTPVC suitable for synchronous bus designs up to ~100 MHz.

Does CY74FCT162827BTPVC support 3.3 V logic inputs?

No, CY74FCT162827BTPVC does not support 3.3 V logic inputs. Its input thresholds are TTL-compatible (V_IL = 0.8 V max, V_VIH = 2.0 V min) and designed exclusively for 5 V operation (V_CC = 5.0 V ±10%). Applying 3.3 V signals may result in marginal or undefined switching behavior; level translation is required for mixed-voltage interfaces involving CY74FCT162827BTPVC.

How many output-enable inputs does CY74FCT162827BTPVC have, and how do they operate?

CY74FCT162827BTPVC has four active-low output-enable inputs: 1OE1, 1OE2, 2OE1, and 2OE2. Each pair (1OE1/1OE2 and 2OE1/2OE2) controls one 10-bit buffer section via NAND logic - both enables in a pair must be low to activate the corresponding 10 outputs. This architecture allows independent gating of two 10-bit data groups using minimal control lines.

Is CY74FCT162827BTPVC pin-compatible with CY74FCT162827ATPVC?

Yes, CY74FCT162827BTPVC is pin-compatible with CY74FCT162827ATPVC - both use the same 56-pin SSOP (O56) package, identical pinout, and share identical DC and functional specifications. The only difference is speed grade: CY74FCT162827ATPVC is rated for 8.0 ns max propagation delay, while CY74FCT162827BTPVC is rated for 5.0 ns, allowing direct substitution where tighter timing is required.

What is the purpose of the I_off feature in CY74FCT162827BTPVC?

The I_off feature in CY74FCT162827BTPVC disables all outputs and blocks current backflow when V_CC = 0 V - essential for partial-power-down scenarios such as hot-plug module insertion, power sequencing in multi-rail systems, or standby mode in industrial controllers. This prevents damage to powered downstream circuitry and eliminates bus contention during power transitions, a key requirement validated in CY74FCT162827BTPVC's datasheet.