Texas Instruments CD4027BPWR

Overview

CD4027BPWR from Texas Instruments is a CMOS dual J-K flip-flop IC designed for synchronous digital control and data storage in logic systems. It features two independent edge-triggered J-K channels, ±1 μA max input current at 18 V, 16 MHz typical toggle frequency at 10 V, and operation across 3–18 V supply range. It is used in binary counters, shift registers, and state-machine controllers where low-power static retention and clock-synchronous state updates are required.

For engineers reviewing the CD4027BPWR datasheet, CD4027BPWR pinout, CD4027BPWR application, or CD4027BPWR equivalent, this page delivers verified functional roles, validated TSSOP-16 pin mapping, JEDEC-compliant noise margin specs (2.5 V at 15 V), dynamic timing parameters (tPLH/tPHL ≤ 90 ns at 15 V), and real-world register/counter use cases - all confirmed against TI's SCHS032D production data sheet.

Technical Context

The CD4027BPWR implements two identical, fully independent J-K flip-flops with asynchronous Set and Reset inputs that override clock action. Each channel responds to the positive-going transition of its dedicated clock input (CLOCK1/CLOCK2), while J and K inputs determine next-state logic per standard J-K truth table including toggle mode when J=K=1.

It uses complementary-symmetry CMOS circuitry enabling static operation (state retention at any stable clock level), rail-to-rail output swing (VOH ≥ 14.95 V, VOL ≤ 0.05 V at VDD = 15 V), and high noise immunity (2.5 V margin at 15 V). All DC and dynamic specifications are guaranteed over –55°C to +125°C.

Key Specifications

Pinout & Package

TSSOP-16 package (PW suffix), 4.4 mm × 5.0 mm body, 1.2 mm max height, 0.65 mm lead pitch, RoHS-compliant NiPdAu lead finish, MSL Level-1 (260°C reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual J-K flip-flop applications.

Compared with CD4027BM96 and MC14027BDR2G, the CD4027BPWR uniquely combines TSSOP-16 miniaturization, full –55°C to +125°C qualification, and guaranteed 1 μA input leakage across temperature - making it the only option for space-constrained, high-reliability embedded control.

Availability

CD4027BPWR is available at Aetrix Electronics and suitable for binary counters, shift registers, state-machine controllers, and power sequencing logic requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for CD4027BPWR 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 ICs, with decades of heritage in CMOS logic innovation and industrial-grade reliability.

The CD4027BPWR belongs to TI's legacy 4000B-series CMOS logic family, engineered for robust operation in harsh environments - emphasizing wide supply range, high noise immunity, and static state retention for industrial control, instrumentation, and aerospace subsystems.

FAQ

What is the maximum clock frequency supported by CD4027BPWR?

The CD4027BPWR supports a maximum clock toggle frequency of 16 MHz at VDD = 10 V and 24 MHz at VDD = 15 V under typical conditions (TA = 25°C, CL = 50 pF). At 5 V supply, the limit drops to 7 MHz. These values are measured in toggle mode (J=K=1) and assume proper layout with local decoupling; actual system-level performance depends on load capacitance and signal integrity.

Does CD4027BPWR support asynchronous reset and set functions?

Yes, CD4027BPWR provides fully asynchronous Set and Reset inputs for each of its two J-K flip-flops (pins 9/7/4/12). These inputs operate independently of the clock signal and force immediate state changes: SETx drives Qx = 1, RESETx drives Qx = 0. Both are active-high and retain priority over J/K/clock actions - a key feature confirmed in TI's SCHS032D functional mode table.

What package type is used for CD4027BPWR?

CD4027BPWR uses a 16-pin Thin Shrink Small-Outline Package (TSSOP) with 0.65 mm lead pitch, 4.4 mm × 5.0 mm body size, and 1.2 mm maximum height. It is RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH), per TI's PW0016A package drawing and PACKAGE OPTION ADDENDUM dated July 2026.

How does CD4027BPWR handle noise immunity across supply voltages?

CD4027BPWR guarantees noise margins of 1 V at 5 V, 2 V at 10 V, and 2.5 V at 15 V supply - measured as the minimum voltage deviation from logic thresholds that still ensures correct interpretation of input levels. This is achieved via tightly matched CMOS threshold design and is validated across –55°C to +125°C, making it suitable for electrically noisy factory-floor environments.

Can CD4027BPWR operate at 3.3 V supply voltage?

Yes, CD4027BPWR is specified to operate down to 3 V per TI's Recommended Operating Conditions (Section 6.2). However, at 3.3 V, performance degrades: max clock frequency falls to ~2.5 MHz, propagation delay increases to ~400 ns, and output drive weakens to ±1.3 mA. For 3.3 V systems, verify timing margins with worst-case load and temperature; consider level-shifting if interfacing with 5 V logic.