Texas Instruments CD4504BMPWREP

Overview

CD4504BMPWREP from Texas Instruments is a radiation-hardened, high-reliability CMOS hex voltage-level shifter enabling bidirectional logic-level translation between TTL and CMOS domains across independent VCC and VDD supplies. It supports six independent channels, operates from –55°C to +125°C, delivers 140 ns max propagation delay in TTL-to-CMOS mode at 5 V/10 V, and features ±1 µA max input current at 18 V over full temperature range - used in avionics interface modules requiring level-shifting between legacy TTL sensors and modern CMOS FPGAs.

For engineers reviewing the CD4504BMPWREP datasheet, CD4504BMPWREP pinout, CD4504BMPWREP application, or CD4504BMPWREP equivalent, this page provides verified electrical parameters, military-grade thermal and supply sequencing behavior, TSSOP-16 package layout details, and validated alternatives for defense-grade system integration where supply-voltage independence and extended temperature operation are mandatory.

Technical Context

The CD4504BMPWREP implements six identical, isolated level-shifting circuits each with dual-mode operation controlled by the SELECT (Pin 13) input: when HIGH, it enables TTL-to-CMOS translation (VCC = 5 V, VDD = 10/15 V); when LOW, it performs CMOS-to-CMOS shifting (e.g., 5 V ↔ 15 V). Each channel accepts input signals exceeding both supply rails (–0.5 V to VCC + 0.5 V), supporting fault-tolerant interfacing in mixed-supply systems.

Its architecture guarantees supply-sequence independence - VCC may power up before, after, or simultaneously with VDD without latch-up or damage - and includes symmetrical output drive (±4.2 mA at VDD = 15 V), standardized VOH/VOL (≥14.95 V / ≤0.05 V), and input thresholds dynamically configured per mode (VIH min = 0.8 V in TTL mode; 3.5 V in CMOS mode).

Key Specifications

Pinout & Package

TSSOP-16 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, 1.2 mm max height, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage-level shifting applications.

Compared with CD4504BMPWREP, CD4504BE lacks military temperature range and reliability controls, while V62/09606-01XE adds Class H screening and DLA traceability - making CD4504BMPWREP the optimal balance of EP-grade robustness, cost, and supply-chain transparency for defense subcontractors.

Availability

CD4504BMPWREP is available at Aetrix Electronics and suitable for avionics sensor interfaces, downhole telemetry modules, secure military radios, satellite payload sequencers, and defense-grade FPGA interconnects requiring stable component supply across extended temperature and radiation-aware environments.

Supply support for CD4504BMPWREP 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 high-reliability components, with decades of heritage in space-qualified and military-grade ICs.

The CD4504BMPWREP belongs to TI's Enhanced Product (EP) line - engineered for extended life cycles, controlled baselines, and operation in harsh environments including aerospace, defense, and medical systems.

FAQ

What is the maximum allowable voltage difference between VCC and VDD for CD4504BMPWREP?

The CD4504BMPWREP allows VCC and VDD to operate independently within their respective absolute maximum ranges: VCC up to +15 V and VDD up to +20 V. The datasheet confirms operation with VDD > VCC (e.g., 5 V/15 V) and VCC > VDD (e.g., 15 V/10 V) in CMOS-CMOS mode. No maximum differential is specified, but both supplies must remain within their individual –0.5 V to rated max limits relative to VSS.

Does CD4504BMPWREP support bidirectional level shifting on the same pin pair?

No, CD4504BMPWREP provides unidirectional level shifting per channel: inputs (AIN–FIN) are referenced to VCC, outputs (AOUT–EOUT) to VDD. Each of the six channels shifts in one direction only. Bidirectional operation requires external control logic or separate transmit/receive paths - the device does not auto-detect direction or share I/O pins.

Can CD4504BMPWREP drive a 100 pF load while maintaining timing specs?

The CD4504BMPWREP's dynamic specifications are characterized at CL = 50 pF. While not explicitly tested at 100 pF, its ±4.2 mA drive strength at VDD = 15 V and typical transition time of 50 ns (max 100 ns) suggest usable performance up to ~75 pF. For 100 pF, propagation delay increases beyond the 280 ns spec - system-level timing validation is required, and adding a buffer is recommended for guaranteed margins.

Is the SELECT pin on CD4504BMPWREP 5 V tolerant when VDD = 15 V?

Yes - the SELECT pin (Pin 13) is an input referenced to VCC, not VDD. Its input voltage range is –0.5 V to VCC + 0.5 V per Absolute Maximum Ratings. So with VCC = 5 V, SELECT accepts 0–5.5 V regardless of VDD value. It is not directly 15 V tolerant, but functions correctly as long as VCC remains within its 5–15 V operating range.

What is the thermal resistance (θJA) of CD4504BMPWREP in its TSSOP-16 package?

The CD4504BMPWREP in TSSOP-16 (PW) package has a specified junction-to-ambient thermal resistance (θJA) of 91.1°C/W, measured per JESD 51-7. This value assumes standard JEDEC test board conditions (2S2P) and applies across the full –55°C to +125°C operating range. Derating begins linearly at 12 mW/°C above +100°C ambient.