Texas Instruments SM470R1B1MPGES

Overview

SM470R1B1MPGES from Texas Instruments is a radiation-tolerant, high-temperature 16-/32-bit RISC microcontroller based on the ARM7TDMI™ core, operating at up to 60 MHz with 1 MB flash and 64 KB SRAM. It integrates two High-End CAN Controllers (HECC), five I²C modules, three SCIs, two SPIs, a 12-channel 10-bit MibADC, and a 12-pin High-End Timer Lite (HET) - designed for real-time control in harsh industrial and aerospace environments.

For engineers reviewing the SM470R1B1MPGES datasheet, SM470R1B1MPGES pinout, SM470R1B1MPGES application, or SM470R1B1MPGES equivalent, this device is selected for extreme-temperature embedded systems requiring dual CAN bus redundancy, deterministic timing via HET, secure memory access (MSM/JTAG security), and robust analog-to-digital acquisition with 1.55-µs conversion time.

Technical Context

The SM470R1B1MPGES implements the ARM7TDMI 16-/32-bit RISC CPU in big-endian mode with pipeline execution, delivering high instruction throughput while maintaining code efficiency. Its 470+ system module (SYS) provides address decoding, memory protection, bus supervision, and prioritized interrupt management across 16 external and multiple internal sources.

Timing is governed by a zero-pin PLL (ZPLL) clock module supporting multiply-by-4 or -8 internal scaling and bypass mode, generating ACLK, SYSCLK, MCLK, and ICLK. The HET Lite peripheral uses a reduced-instruction-set micromachine with 64-word RAM and XOR-share capability for sub-channel pulse generation, while the MibADC supports three configurable conversion groups with 64-word FIFO and analog/digital watchdog timers.

Key Specifications

Pinout & Package

SM470R1B1MPGES is packaged in a 144-pin LQFP (PGE) with exposed thermal pad, optimized for high-reliability PCB mounting in extreme-temperature applications. Pin functions are defined per TI SPNS155I Rev I, including dedicated GIO, peripheral multiplexing, and power/ground segregation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-temperature microcontroller applications.

Compared with TMS570LS1227ZWTQ and SPC56EL70L5COBR, the SM470R1B1MPGES uniquely combines extreme-temperature operation (–55°C to +150°C), dual HECC with 32-mailbox buffers, HET Lite for sub-µs deterministic I/O, and 12-channel MibADC - making it irreplaceable in legacy CAN-based aerospace actuation and high-temp industrial motor control where timing fidelity and analog bandwidth are non-negotiable.

Availability

SM470R1B1MPGES is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive systems, aerospace actuation units, and energy grid protection relays requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SM470R1B1MPGES 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 ICs for industrial, automotive, and aerospace markets.

The SM470R1x family was engineered for extreme-environment embedded control - emphasizing radiation tolerance, extended temperature operation, CAN-based distributed real-time systems, and secure firmware execution in safety-critical infrastructure.

FAQ

What is the maximum operating temperature range for the SM470R1B1MPGES?

The SM470R1B1MPGES is rated for operation from –55°C to +150°C, qualified per controlled baseline with extended product lifecycle support. This specification is validated per TI SPNS155I Rev I and applies specifically to the PGE (LQFP-144) package variant, enabling deployment in under-hood automotive, downhole oil/gas, and aerospace actuation environments where conventional MCUs fail.

Does the SM470R1B1MPGES support CAN FD or only classical CAN?

The SM470R1B1MPGES implements two High-End CAN Controllers (HECC) compliant exclusively with CAN 2.0B protocol (up to 1 Mbps), not CAN FD. Its HECC modules provide full 32-mailbox buffering, message filtering, and error confinement - optimized for deterministic real-time control in harsh environments, but lacking the higher data-rate and flexible data-length features of CAN FD.

How many analog input channels does the MibADC in the SM470R1B1MPGES support?

The SM470R1B1MPGES integrates a 12-channel, 10-bit Multi-Buffered ADC (MibADC) with dedicated ADIN[0] through ADIN[11] pins. It supports grouped sequential conversions, hardware-triggered acquisition, and a 64-word FIFO - enabling simultaneous sampling of multi-sensor arrays without CPU intervention during critical control cycles.

What is the purpose of the HET Lite peripheral in the SM470R1B1MPGES?

The HET Lite peripheral in the SM470R1B1MPGES is an advanced deterministic timer subsystem with 12 high-resolution I/O pins and 64-word RAM. It executes timing-critical tasks - such as PWM generation, encoder capture, and sensor excitation - using a reduced instruction set micromachine, independent of CPU load. Its XOR-share feature allows adjacent channels to synthesize sub-microsecond pulses essential for motor phase control.

Is the SM470R1B1MPGES pin-compatible with other devices in the SM470R1x family?

The SM470R1B1MPGES shares the same 144-pin LQFP (PGE) footprint and core peripheral mapping with SM470R1B1M-HT variants, but differs in temperature screening and packaging qualification. Pin compatibility is confirmed per TI SPNS155I Rev I Section 5.3; however, users must verify voltage rail assignments, I/O drive strength, and peripheral enable configurations against their specific variant's datasheet revision.