Texas Instruments COP8SBR9HVA8NOPB

Overview

COP8SBR9HVA8NOPB from Texas Instruments is an 8-bit CMOS flash-based microcontroller with 32 kB program memory, 1 kB volatile RAM, brownout reset (2.7–2.9 V trip), and virtual EEPROM functionality. It supports dual-clock operation (up to 20 MHz CPU clock from 10 MHz oscillator), 13 vectored interrupts, and operates from −40°C to +85°C in 44-pin WQFN package. Used in industrial control modules requiring in-system reprogrammability and low-EMI operation.

For engineers reviewing the COP8SBR9HVA8NOPB datasheet, COP8SBR9HVA8NOPB pinout, COP8SBR9HVA8NOPB application, or COP8SBR9HVA8NOPB equivalent, key selection factors include brownout reset voltage range (2.7–2.9 V), 44-pin WQFN thermal performance, instruction cycle time (1.5 μs at 3.33 MHz input), and MICROWIRE/PLUS interface compatibility for firmware updates.

Technical Context

The COP8SBR9HVA8NOPB implements a modified Harvard architecture with two-stage pipeline, enabling overlapped instruction fetch and data access. Its clock system integrates a high-speed oscillator (up to 10 MHz) and low-speed 32.768 kHz oscillator, with on-chip clock doubler producing 20 MHz MCLK for 0.5 μs instruction cycles or 6.67 MHz MCLK for 1.5 μs cycles.

It features three 16-bit timers (T1–T3), two USARTs with baud generators, and true bit manipulation across memory-mapped I/O ports. Brownout reset logic is active only in COP8SBR9 variants, with trip thresholds of 2.7–2.9 V (low) and 4.17–4.5 V (high), and HALT/IDLE power-save modes reduce current to <10 μA.

Key Specifications

Pinout & Package

44-pin WQFN (NJN0044A) package with exposed thermal pad; 7 mm × 7 mm body, 0.5 mm lead pitch, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with COP8SCR9HVA8NOPB and COP8SDR9HVA8NOPB, the COP8SBR9HVA8NOPB uniquely provides low-voltage brownout detection (2.7–2.9 V) for 3.3 V systems while maintaining industrial temperature range - making it optimal for legacy 3.3 V embedded controllers requiring robust power-fail response.

Availability

COP8SBR9HVA8NOPB is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, programmable power supplies, and PLC I/O modules requiring stable component supply across long production lifecycles.

Supply support for COP8SBR9HVA8NOPB 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 company specializing in analog, embedded processing, and connectivity technologies with over 50 years of microcontroller innovation.

The COP8™ family was designed for cost-sensitive, low-EMI industrial control applications requiring in-system programmability, virtual EEPROM, and deterministic real-time interrupt response - all in compact packages like the 44-pin WQFN used by COP8SBR9HVA8NOPB.

FAQ

What is the brownout reset voltage range for COP8SBR9HVA8NOPB?

The COP8SBR9HVA8NOPB features a dual-threshold brownout reset: low trip level is 2.7–2.9 V, and high trip level is 4.17–4.5 V. This allows reliable operation in 3.3 V systems where undervoltage lockout must activate before logic corruption occurs. The reset remains asserted until VCC rises above the hysteresis band. COP8SBR9HVA8NOPB does not support disabling BOR via software - it is always active.

Which package type does COP8SBR9HVA8NOPB use, and what are its thermal characteristics?

COP8SBR9HVA8NOPB uses a 44-pin WQFN package (TI package code NJN0044A), measuring 7 mm × 7 mm with 0.5 mm pitch and an exposed thermal pad. Its θ_JA is 42°C/W typical on 2-layer board with 1-in² copper pour under the pad. The package supports reflow per JEDEC J-STD-020 and is rated for industrial temperature range (−40°C to +85°C).

Does COP8SBR9HVA8NOPB support in-system programming, and how is it implemented?

Yes, COP8SBR9HVA8NOPB supports in-system programming via its MICROWIRE/PLUS serial interface (pins G4/SO, G5/SK, G6/SI). A boot ROM contains erase/program/read routines callable by user firmware. No external high-voltage programmer is needed - updates occur at standard VCC levels. The COP8SBR9HVA8NOPB also supports virtual EEPROM emulation using Flash sectors managed by these same routines.

What is the maximum instruction execution speed of COP8SBR9HVA8NOPB?

COP8SBR9HVA8NOPB achieves a 1.5 μs instruction cycle time when driven by a 3.33 MHz crystal (yielding 6.67 MHz MCLK), or 0.5 μs when driven by a 10 MHz crystal (yielding 20 MHz MCLK). Its architecture executes 77% of instructions in a single byte and single cycle, delivering high code efficiency. The actual throughput depends on oscillator configuration and clock doubler enable state.

How many I/O pins does COP8SBR9HVA8NOPB provide, and what are their drive capabilities?

COP8SBR9HVA8NOPB provides 59 total I/O pins across Ports A–G, L, and D. Port D (D0–D7) is output-only with 10 mA sink capability at 4.5 V. All other ports support bidirectional operation with configurable weak pull-up, push-pull, or tri-state modes. Output drive strength is 7 mA source / 10 mA sink (4.5 V), and input hysteresis is 0.25 × VCC for noise immunity.