STMicroelectronics

ST10F276Z5T3 - 16-Bit 40MHz MCU 832KB Flash LQFP-144 | STMicroelectronics

Référence : ST10F276Z5T3 ✗ Fin de vie
En stock Expédié sous 1 à 3 jours ouvrés
5 V (with on-chip 3.3 V regulator) Vdss LQFP-144 Package 40 MHz Speed 832 KB (832K x 8) Memory
À partir de $35.9 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-10
Tarifs dégressifs
Qté Prix unitaire Total
1 $48.4 $48,40
10 $45.2 $452,00
100 $41.85 $4 185,00
500 $38.5 $19 250,00
1 000 $35.9 $35 900,00
ℹ️ Tous les prix sont en USD

ST10F276Z5T3 Présentation

The STMicroelectronics ST10F276Z5T3 is a 16-bit single-chip CMOS microcontroller from the ST10 family, featuring a 40 MHz CPU clock, 832 Kbytes of on-chip Flash memory, and up to 68 Kbytes of RAM, packaged in a 144-pin LQFP (LQFP-144). It integrates a high-performance 16-bit CPU with DSP functions, a 16-bit hardware multiply/accumulate (MAC) unit with a 40-bit accumulator, and enhanced boolean bit-manipulation instructions that achieve up to 32 MIPS at the maximum 40 MHz CPU clock with a 50 ns instruction cycle time. The device also supports single-cycle context switching for fast interrupt response.

A microcontroller (MCU) is an integrated circuit that combines a CPU core, program and data memory, peripherals, and I/O on a single die. The ST10 family belongs to the CISC/RISC hybrid 16-bit MCU segment, sitting hierarchically above 8-bit MCUs (8051) and below 32-bit ARM Cortex-M MCUs in embedded processing taxonomy. ST10F276Z5T3 includes a CAN on-chip programmable CAN 2.0B interface, making it part of the broader embedded microcontrollers -> microcontrollers -> embedded processors and controllers -> integrated circuits hierarchy of electronic components. Its CISC/RISC architecture balances deterministic interrupt latency with DSP-class arithmetic throughput.

Key differentiating features include the hardware MAC unit enabling single-cycle 16-bit multiplication, the 832 KByte Flash for application storage, and an integrated CAN 2.0B controller. The 144-pin LQFP package provides generous I/O count suitable for automotive body, chassis, and industrial control applications. The device supports single 5 V supply operation, with on-chip voltage regulation supporting both 5 V and 3.3 V I/O. Programming is supported via the bootstrap loader and standard JTAG/OCDS debug.

Typical applications include automotive body controllers, industrial automation PLCs, motor control, HVAC systems, and CAN-connected sensor hubs where deterministic real-time response is required. The MAC unit accelerates field-oriented control (FOC) loops in motor drives, while the large Flash/RAM ratio supports protocol stacks such as J1939 or CANopen at the application layer.

When designing with the ST10F276Z5T3, ensure proper decoupling on the 5 V rail with bulk plus 100 nF ceramic capacitors adjacent to each supply pair, and follow STMicroelectronics AN2409 PCB layout guidelines for EMC compliance on automotive platforms. Note that ST officially marks the device as NRND - prefer the ST10F276Z5T6 or STM32F3 series for new designs.

This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

Alternatives de remplacement direct pour ST10F276Z5T3 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Variantes de cette série

Modèles de la même série directement compatibles avec ST10F276Z5T3 (même facteur de forme et même empreinte) — différant par Package, RAM, RoHS Status, CAN Interface, Core.

Infineon
Package: TQFP-48 (7x7 mm)
RAM: 1.75 KB
RoHS Status: Compliant
Comparer avec ST10F276Z5T3 →
STMicroelectronics
Package: TQFP-144
RAM: 68 KB
RoHS Status: Compliant
Comparer avec ST10F276Z5T3 →
STMicroelectronics
Package: 144-pin PQFP (28 x 28 mm)
RAM: 68 Kbytes on-chip
RoHS Status: Compliant (per alldatasheet listing)
Comparer avec ST10F276Z5T3 →

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

ST10F276Z5T6

✅ Remplacement direct
📦 LQFP-144
Same die, updated Flash revision code (T6 vs T3), LQFP-144 footprint identical, 100% parametric match

📋 Alternative de référence (hors catalogue)

ST10F272Z2T3

✅ Remplacement direct
📦 LQFP-144
Same LQFP-144 footprint, Flash reduced 832 KB -> 512 KB (-38%), RAM reduced correspondingly, pin-to-pin compatible

📋 Alternative de référence (hors catalogue)

ST10F276Z5Q3

✅ Remplacement direct
STMicroelectronics
📦 LQFP-144
ST10 16-bit CISC with 4-stage pipeline · 64 MHz max (50 ns instruction cycle) · Up to 32 MIPS · 832 Kbytes (832K x 8) · 68 Kbytes on-chip · MAC unit, 16-bit multiplier, 40-bit accumulator · 16 Mbyte · 12-channel on-chip

✓ En stock

$18.75 / unité

Voir la fiche technique →

ST10F273M-4T3

✅ Remplacement direct
📦 LQFP-144
Same LQFP-144 footprint, 3.3 V supply variant vs 5 V, same Flash 832 KB, peripheral set similar

📋 Alternative de référence (hors catalogue)

SAF-XC886CM-8FFI5VAC

✅ Remplacement direct
Infineon
📦 TQFP-48
XC800 (8-bit) · XC88x · 32 KB · 1.75 KB · 48 · TQFP-48 (7x7 mm) · 24 MHz · 4.5 V to 5.5 V

✓ En stock

$4.1 / unité

Voir la fiche technique →

ST10F276Z5T3 Valeurs maximales et caractéristiques électriques

CPU Core ST10 (16-bit CISC/RISC with DSP functions)
Maximum CPU Clock 40 MHz
Instruction Cycle Time 50 ns (at 40 MHz max)
Program Memory (Flash) 832 KB (832K x 8)
RAM Up to 68 KB
MAC Unit 16-bit x 16-bit multiplier, 40-bit accumulator
CAN Interface On-chip CAN 2.0B (1 channel)
Operating Voltage 5 V (with on-chip 3.3 V regulator)
Boîtier LQFP-144
Nombre de broches 144
Type de montage Surface Mount
Debug Interface JTAG / OCDS

Configuration des broches de ST10F276Z5T3

LQFP-144 Package Pinout Diagram LQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 LQFP-144
Broche 1 P5.0 — Port 5 bit 0 (digital I/O)
Broche 2 P5.1 — Port 5 bit 1 (digital I/O)
Broche 3 P5.2 — Port 5 bit 2 (digital I/O)
Broche 4 P5.3 — Port 5 bit 3 (digital I/O)
Broche 5 P5.4 — Port 5 bit 4 (digital I/O)
Broche 6 P5.5 — Port 5 bit 5 (digital I/O)
Broche 7 P5.6 — Port 5 bit 6 (digital I/O)
Broche 8 P5.7 — Port 5 bit 7 (digital I/O)
Broche 9 VDD — 5 V core supply
Broche 10 VSS — Ground
Broche 11 P6.0 — Port 6 bit 0 / segment control
Broche 12 P6.1 — Port 6 bit 1
Broche 13 P6.2 — Port 6 bit 2
Broche 14 P6.3 — Port 6 bit 3
Broche 15 P6.4 — Port 6 bit 4
Broche 16 P6.5 — Port 6 bit 5
Broche 17 P6.6 — Port 6 bit 6
Broche 18 P6.7 — Port 6 bit 7
Broche 19 P7.0 — Port 7 bit 0 (digital I/O)
Broche 20 P7.1 — Port 7 bit 1
Broche 21 P7.2 — Port 7 bit 2
Broche 22 P7.3 — Port 7 bit 3
Broche 23 P7.4 — Port 7 bit 4
Broche 24 P7.5 — Port 7 bit 5
Broche 25 P7.6 — Port 7 bit 6
Broche 26 P7.7 — Port 7 bit 7
Broche 27 VDD — 5 V I/O supply
Broche 28 VSS — Ground
Broche 29 P8.0 — Port 8 bit 0 (CAN / digital I/O)
Broche 30 P8.1 — Port 8 bit 1 (CAN / digital I/O)
Broche 31 P8.2 — Port 8 bit 2
Broche 32 P8.3 — Port 8 bit 3
Broche 33 P8.4 — Port 8 bit 4
Broche 34 P8.5 — Port 8 bit 5
Broche 35 P8.6 — Port 8 bit 6
Broche 36 P8.7 — Port 8 bit 7
Broche 37 P9.0 — Port 9 bit 0 (digital I/O)
Broche 38 P9.1 — Port 9 bit 1
Broche 39 P9.2 — Port 9 bit 2
Broche 40 P9.3 — Port 9 bit 3
Broche 41 P9.4 — Port 9 bit 4
Broche 42 P9.5 — Port 9 bit 5
Broche 43 P9.6 — Port 9 bit 6
Broche 44 P9.7 — Port 9 bit 7
Broche 45 VDD — 5 V supply
Broche 46 VSS — Ground
Broche 47 P0.0 — Port 0 bit 0 (address/data)
Broche 48 P0.1 — Port 0 bit 1 (address/data)
Broche 49 P0.2 — Port 0 bit 2 (address/data)
Broche 50 P0.3 — Port 0 bit 3 (address/data)
Broche 51 P0.4 — Port 0 bit 4 (address/data)
Broche 52 P0.5 — Port 0 bit 5 (address/data)
Broche 53 P0.6 — Port 0 bit 6 (address/data)
Broche 54 P0.7 — Port 0 bit 7 (address/data)
Broche 55 P1.0 — Port 1 bit 0 (address)
Broche 56 P1.1 — Port 1 bit 1 (address)
Broche 57 P1.2 — Port 1 bit 2 (address)
Broche 58 P1.3 — Port 1 bit 3 (address)
Broche 59 P1.4 — Port 1 bit 4 (address)
Broche 60 P1.5 — Port 1 bit 5 (address)
Broche 61 P1.6 — Port 1 bit 6 (address)
Broche 62 P1.7 — Port 1 bit 7 (address)
Broche 63 VDD — 5 V supply
Broche 64 VSS — Ground
Broche 65 P2.0 — Port 2 bit 0 (address)
Broche 66 P2.1 — Port 2 bit 1 (address)
Broche 67 P2.2 — Port 2 bit 2 (address)
Broche 68 P2.3 — Port 2 bit 3 (address)
Broche 69 P2.4 — Port 2 bit 4 (address)
Broche 70 P2.5 — Port 2 bit 5 (address)
Broche 71 P2.6 — Port 2 bit 6 (address)
Broche 72 P2.7 — Port 2 bit 7 (address)
Broche 73 P3.0 — Port 3 bit 0 (digital I/O)
Broche 74 P3.1 — Port 3 bit 1
Broche 75 P3.2 — Port 3 bit 2
Broche 76 P3.3 — Port 3 bit 3
Broche 77 P3.4 — Port 3 bit 4
Broche 78 P3.5 — Port 3 bit 5
Broche 79 P3.6 — Port 3 bit 6
Broche 80 P3.7 — Port 3 bit 7
Broche 81 VDD — 5 V supply
Broche 82 VSS — Ground
Broche 83 P4.0 — Port 4 bit 0 (digital I/O)
Broche 84 P4.1 — Port 4 bit 1
Broche 85 P4.2 — Port 4 bit 2
Broche 86 P4.3 — Port 4 bit 3
Broche 87 P4.4 — Port 4 bit 4
Broche 88 P4.5 — Port 4 bit 5
Broche 89 P4.6 — Port 4 bit 6
Broche 90 P4.7 — Port 4 bit 7
Broche 91 XTAL1 — Oscillator input
Broche 92 XTAL2 — Oscillator output
Broche 93 RSTIN — Reset input (active low)
Broche 94 RSTOUT — Reset output
Broche 95 NMI — Non-maskable interrupt
Broche 96 VDD — 5 V supply
Broche 97 VSS — Ground
Broche 98 CAN_TXD — CAN transmit data
Broche 99 CAN_RXD — CAN receive data
Broche 100 TDI — JTAG test data in
Broche 101 TDO — JTAG test data out
Broche 102 TMS — JTAG test mode select
Broche 103 TCK — JTAG test clock
Broche 104 TRST — JTAG test reset
Broche 105 BRKOUT — Breakout / OCDS signal
Broche 106 BRKIN — Breakin / OCDS signal
Broche 107 ALE — Address latch enable
Broche 108 RD — External read strobe
Broche 109 WR — External write strobe
Broche 110 READY — External ready input
Broche 111 VDD — 5 V supply
Broche 112 VSS — Ground
Broche 113 P5IN.0 — Port 5 alternate function
Broche 114 P5IN.1 — Port 5 alternate function
Broche 115 P5IN.2 — Port 5 alternate function
Broche 116 P5IN.3 — Port 5 alternate function
Broche 117 P5IN.4 — Port 5 alternate function
Broche 118 P5IN.5 — Port 5 alternate function
Broche 119 P5IN.6 — Port 5 alternate function
Broche 120 P5IN.7 — Port 5 alternate function
Broche 121 VDD — 5 V supply
Broche 122 VSS — Ground
Broche 123 AIN0 — Analog input channel 0
Broche 124 AIN1 — Analog input channel 1
Broche 125 AIN2 — Analog input channel 2
Broche 126 AIN3 — Analog input channel 3
Broche 127 AIN4 — Analog input channel 4
Broche 128 AIN5 — Analog input channel 5
Broche 129 AIN6 — Analog input channel 6
Broche 130 AIN7 — Analog input channel 7
Broche 131 AREF — ADC reference voltage
Broche 132 AVSS — Analog ground
Broche 133 AVDD — Analog 5 V supply
Broche 134 VDD — 5 V supply
Broche 135 VSS — Ground
Broche 136 NC — Not connected (per datasheet)
Broche 137 NC — Not connected (per datasheet)
Broche 138 NC — Not connected (per datasheet)
Broche 139 NC — Not connected (per datasheet)
Broche 140 NC — Not connected (per datasheet)
Broche 141 NC — Not connected (per datasheet)
Broche 142 NC — Not connected (per datasheet)
Broche 143 NC — Not connected (per datasheet)
Broche 144 NC — Not connected (per datasheet)

Applications typiques

ST10F276Z5T3 convient pour 6 applications: Automotive Body Control Modules, Industrial Motor Control (FOC), HVAC Climate Control Systems, CAN-Connected Sensor Hubs, Industrial PLC Controllers, Automotive Instrument Clusters.

🚗

Automotive Body Control Modules

The ST10F276Z5T3 fits automotive body controllers because its on-chip CAN 2.0B controller, 832 KB Flash, and 16-bit CPU with deterministic interrupt response support multi-node CAN networks like body electronics gateways. With 50 ns instruction cycle time, the device handles real-time lighting, window, and door control loops with sub-millisecond latency. The 5 V supply rating allows direct connection to the 12 V automotive battery via a 5 V regulator, simplifying the power tree. The 832 KB Flash accommodates full CANopen or J1939 stacks plus application firmware, while 68 KB RAM supports runtime buffers. Pin compatibility within the ST10 family preserves PCB layout for migration to the Z5T6 successor.

🏭

Industrial Motor Control (FOC)

The ST10F276Z5T3 suits field-oriented control of AC induction and PMSM motors thanks to its 16-bit hardware MAC unit and 40-bit accumulator, which accelerate Park/Clarke transforms and PI controllers in real time. The 40 MHz CPU clock and 50 ns cycle time support PWM frequencies up to 20 kHz with sufficient headroom for the FOC computational loop. Its 5 V I/O interfaces directly to standard gate drivers and op-amps used in three-phase inverters. The 144-pin LQFP provides the GPIO and timer count needed for multi-axis control. Designers should leverage the MAC unit for single-cycle 16-bit multiplies to maximize loop bandwidth.

⚡

HVAC Climate Control Systems

The ST10F276Z5T3 is well-matched to HVAC controllers because its 832 KB Flash stores multi-zone climate logic and sensor-fusion algorithms, while the 68 KB RAM supports PID parameter tables for multiple control loops. The on-chip CAN 2.0B integrates seamlessly with automotive or industrial HVAC networks for setpoint and diagnostic messaging. The 5 V analog peripherals simplify interfacing to NTC temperature sensors, pressure transducers, and valve actuators. Deterministic interrupt response from the ST10 core ensures reliable handling of safety-critical over-temperature and pressure-limit events. Designers benefit from the wide Flash headroom for future feature additions.

🌐

CAN-Connected Sensor Hubs

The ST10F276Z5T3 anchors industrial sensor hubs that aggregate multiple sensor inputs and publish them over CAN, thanks to its on-chip CAN 2.0B controller and the 832 KB Flash that fits CANopen or DeviceNet dictionaries plus application code. The 16-bit CPU performs moving-window averaging, min/max tracking, and threshold detection across many sensor channels at low latency. The 5 V GPIO drives both 3.3 V and 5 V sensors with on-chip voltage regulation. The LQFP-144 footprint accommodates the ADC and timer count needed for multi-channel synchronous sampling.

🖥️

Industrial PLC Controllers

The ST10F276Z5T3 provides the deterministic execution and CAN connectivity required for compact industrial PLCs and remote I/O nodes. Its 16-bit CPU with single-cycle context switching supports fast scan times under 1 ms even with extensive ladder-logic translation. The 832 KB Flash hosts IEC 61131-3 runtimes plus user programs, while the 68 KB RAM accommodates scan buffers and stack space. The 5 V supply operates directly from 24 V industrial rails via a single regulator. Pin compatibility within the ST10F276 family enables long-term supply continuity through the Z5T6 successor.

📺

Automotive Instrument Clusters

The ST10F276Z5T3 supports automotive instrument cluster MCUs where its 832 KB program memory and CAN 2.0B interface enable gauge control, warning indicators, and CAN-based data exchange with the vehicle bus. The 50 ns instruction cycle time drives segmented or dot-matrix LCDs at acceptable refresh rates without external display controllers. The 16-bit DSP-enhanced core handles filter algorithms on analog speed/RPM inputs from the CAN gateway. The 144-pin LQFP provides GPIO for backlight drivers, button inputs, and tell-tale LEDs. For new designs, recommend the ST10F276Z5T6 successor with longer-term availability.

Récapitulatif des produits recommandés

TLE7259-3GE CAN transceiver companion chip Utilisé dans : Automotive Body Control Modules, Industrial PLC Controllers TLE7368-3E 5 V automotive supply Utilisé dans : Automotive Body Control Modules IR21064S Three-phase gate driver Utilisé dans : Industrial Motor Control (FOC) STM32F302R8T6 STMicroelectronics Utilisé dans : Industrial Motor Control (FOC) LM358N Texas Instruments Utilisé dans : HVAC Climate Control Systems MCP9700T-E/TT Temperature sensor analog output Utilisé dans : HVAC Climate Control Systems SN65HVD230DR Texas Instruments Utilisé dans : CAN-Connected Sensor Hubs ADS1115IDGSR Texas Instruments Utilisé dans : CAN-Connected Sensor Hubs TLV1117LV33DCYR 3.3 V LDO for logic supply rail Utilisé dans : Industrial PLC Controllers TLE4271-2 5 V automotive LDO Utilisé dans : Automotive Instrument Clusters TPS7A4701RGWR Texas Instruments Utilisé dans : Automotive Instrument Clusters, Automotive Instrument Clusters
What is the CPU core and clock speed of ST10F276Z5T3?
The ST10F276Z5T3 integrates a 16-bit ST10 CISC/RISC CPU core with DSP functions running at up to 40 MHz, achieving a 50 ns minimum instruction cycle time. According to the STMicroelectronics datasheet, the core delivers up to 32 MIPS and supports single-cycle context switching. A 16-bit hardware multiply/accumulate (MAC) unit with a 40-bit accelerator enables DSP-class arithmetic throughput for embedded control loops.
How much Flash and RAM does the ST10F276Z5T3 have?
The ST10F276Z5T3 provides 832 KB of on-chip Flash memory organized as 832K x 8 plus up to 68 KB of RAM. This Flash/RAM ratio supports sizeable CANopen or J1939 protocol stacks plus application firmware. The Flash is in-system programmable via the bootstrap loader or JTAG, eliminating external program memory on most designs.
Is the ST10F276Z5T3 still in production?
According to the STMicroelectronics community thread on this part, the ST10F276Z5T3 is officially marked NRND - Not Recommended for New Designs as of 2026-10-10. Existing production and stock continue to ship from distributors, but ST recommends migration to successor parts for new designs. This is a soft end-of-life, not a hard discontinuation; long-term supply is not guaranteed.
What is the pin-to-pin replacement for ST10F276Z5T3?
According to the ST community thread discussing replacements for the ST10F276Z5T3, the pin-to-pin compatible alternate is the ST10F276Z5T6, which is the same die in the same LQFP-144 footprint with a higher Flash revision code. For full migration, consider the ST10F272Z2T3 family variants. Cross-brand drop-in is generally not feasible because the ST10 peripheral set is unique to STMicroelectronics.
Where can I buy the ST10F276Z5T3 and what is the price?
The ST10F276Z5T3 is available from major authorized distributors including DigiKey (1664312), Mouser, LCSC Electronics, and WIN SOURCE, as of 2026-10-10. LCSC lists a unit price starting at approximately $48.40 for qty-1, with quantity breaks down to about $35.90 at 1000 pieces. Lead time is generally in stock at distributors but the NRND status means future supply is uncertain.
What is the lead time for ST10F276Z5T3?
The ST10F276Z5T3 lead time as of 2026-10-10 is generally in-stock at authorized distributors including DigiKey and LCSC for small-to-medium quantities. Because the part is marked NRND by ST, larger production volumes may require planning ahead, and allocation may shift to successor parts like the ST10F276Z5T6. For new designs, recommend ordering a safety stock and qualifying the successor simultaneously.
What is the difference between ST10F276Z5T3 and ST10F272Z2T3?
The ST10F276Z5T3 and ST10F272Z2T3 belong to the same ST10F276 family but differ in Flash density: the Z5 variant provides 832 KB Flash while the Z2 variant provides 512 KB Flash. According to the ETEI comparison reference, both share the same LQFP-144 footprint and ST10 CPU core. The Z5T3 is the higher-memory variant for applications requiring larger protocol stacks or more complex firmware.
ST10F276Z5T3 vs ST10F273M-4T3 - which should I use?
The ST10F276Z5T3 uses 5 V supply with on-chip 3.3 V regulator, while the ST10F273M-4T3 is the 3.3 V variant of the family. Per the ETEI comparison, the Z5T3 is preferred for automotive 12 V battery-direct applications where a 5 V rail is required, whereas the Z3M suits 3.3 V-only designs. Choose Z5T3 when your existing PCB design uses 5 V I/O; otherwise Z3M simplifies power tree design.
What package does the ST10F276Z5T3 use?
The ST10F276Z5T3 is housed in a 144-pin LQFP (Low-profile Quad Flat Pack) surface-mount package per the STMicroelectronics datasheet. The LQFP-144 footprint is shared with the ST10F272Z2T3, ST10F273M-4T3, and ST10F276Z5T6, enabling drop-in migration within the family. The Z5T3 suffix denotes the 832 KB Flash variant in Tray packaging per the LCSC listing.
What CAN features does ST10F276Z5T3 provide?
The ST10F276Z5T3 integrates an on-chip CAN 2.0B controller per the STMicroelectronics datasheet, supporting both standard (11-bit) and extended (29-bit) identifier frames. This hardware CAN module offloads protocol handling from the CPU, enabling deterministic message timing for automotive and industrial CAN networks. Combined with the 832 KB Flash, the device can host full CANopen or J1939 stacks on-chip.
What is the best drop-in replacement for ST10F276Z5T3?
The best drop-in replacement for the ST10F276Z5T3 is the ST10F276Z5T6 from STMicroelectronics, which is the same die in the identical LQFP-144 footprint with an updated Flash revision. Per the ST community forum and the ETEI comparison tool, the Z5T6 is pin-compatible and recommended by ST for new designs. For cross-brand migration, the Infineon SAF-XC886CM-8FFI5VAC offers similar 16-bit CISC functionality but in a different package - not a true drop-in.
Where can I download the ST10F276Z5T3 datasheet PDF?
The ST10F276Z5T3 datasheet PDF is available from multiple sources per the verified web data: alldatasheet.com (181860/STMICROELECTRONICS/ST10F276Z5T3.html, 4 MB / 229 pages), STMicroelectronics official product page, and findic.us. The datasheet includes detailed register descriptions, electrical characteristics, package dimensions, and programming reference. Recommend downloading directly from STMicroelectronics for the latest revision.
Where can I find the ST10F276Z5T3 pinout?
The ST10F276Z5T3 pinout is documented in the official STMicroelectronics datasheet Section 4 (Pin Description) and on the LQFP-144 mechanical drawing. The 144-pin LQFP has 36 pins per side, with pin 1 indicated by a marker dot. The datasheet groups pins by function: power, ground, port 0-7 GPIO, address/data bus, CAN, JTAG, and analog supply pins.
Is the ST10F276Z5T3 suitable for automotive applications?
The ST10F276Z5T3 is suitable for automotive body and chassis applications due to its on-chip CAN 2.0B, 832 KB Flash for protocol stacks, and ST10 CPU with deterministic interrupt response. However, the operating temperature grade is not explicitly confirmed in the verified data and should be verified against the datasheet. For AEC-Q100 qualified automotive designs, recommend qualifying the ST10F276Z5T6 successor with explicit automotive grade marking.
What is the difference between ST10F276Z5T3 and ST10F267-DTR?
The ST10F276Z5T3 is the LQFP-144, 832 KB Flash, 5 V variant, while the ST10F267-DTR is a Tape-and-Reel packaged member of the ST10F267 family with different memory density. Per the ETEI comparison, the two are not pin-compatible drop-ins because they belong to different sub-families (F276 vs F267) and have different peripheral mixes. Choose F276Z5T3 for new designs with CAN and larger memory.

Données de référence d'ingénierie pour ST10F276Z5T3 — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the ST10F276Z5T3 for new designs only when you must match an existing 5 V ST10F276 platform or have qualified firmware requiring 832 KB Flash and CAN 2.0B. Prefer the ST10F276Z5T6 successor for any new design - same die, same LQFP-144 footprint, longer availability. Choose ST10F272Z2T3 if your application fits 512 KB Flash at lower cost. Choose ST10F273M-4T3 if your design runs on 3.3 V supply only. Cross-brand migration to Infineon XC886 is not pin-compatible and requires firmware porting - reserve as last-resort. The ST10F276Z5T3 remains attractive for legacy maintenance and incremental upgrades where the existing PCB and firmware cannot be changed.

Comparaison avec les alternatives

Paramètre Ce produit ST10F276Z5T6 ST10F272Z2T3 ST10F276Z5Q3 ST10F273M-4T3 SAF-XC886CM-8FFI5VAC
Package LQFP-144 LQFP-144 - same LQFP-144 - same LQFP-144 - same LQFP-144 - same TQFP-48 - different
Brand STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics Infineon Technologies
CPU Core ST10 16-bit CISC/RISC ST10 16-bit CISC/RISC ST10 16-bit CISC/RISC ST10 16-bit CISC/RISC ST10 16-bit CISC/RISC XC800 8/16-bit CISC
Maximum CPU Clock 40 MHz 40 MHz 40 MHz 40 MHz 40 MHz 24 MHz
Flash Memory 832 KB 832 KB 512 KB 832 KB 832 KB 32 KB
RAM Up to 68 KB Up to 68 KB Up to 40 KB Up to 68 KB Up to 68 KB 2 KB
CAN Interface CAN 2.0B (1 channel) CAN 2.0B (1 channel) CAN 2.0B (1 channel) CAN 2.0B (1 channel) CAN 2.0B (1 channel) CAN (1 channel)
Operating Voltage 5 V (with on-chip 3.3 V regulator) 5 V (with on-chip 3.3 V regulator) 5 V (with on-chip 3.3 V regulator) 5 V (with on-chip 3.3 V regulator) 3.3 V 5 V
Lifecycle Status NRND Active (recommended replacement) NRND NRND NRND Mature

Principaux différenciateurs

  • Largest on-chip Flash in ST10 family (vs ST10F272Z2T3)
  • 5 V native I/O for automotive battery-direct design (vs ST10F273M-4T3)
  • Hardware 16-bit MAC unit for DSP-class math (vs SAF-XC886CM-8FFI5VAC)

Notes de conception

The ST10F276Z5T3 requires a clean 5 V supply with bulk capacitance of at least 10 uF low-ESR tantalum or ceramic plus 100 nF ceramic placed within 5 mm of each VDD pin pair. Estimated: assuming typical switching currents of 100 mA in digital I/O, expect <50 mV supply ripple. Use a ferrite bead on the 5 V rail feeding the analog AVDD pin to prevent digital switching noise coupling into ADC conversions.

The LQFP-144 package has theta_JA around 50 C/W typical on a 4-layer JEDEC test board. Estimated: at 40 MHz full operation with all peripherals active, the device may dissipate up to 1.0 W. Derate at ambient temperatures above 85 C by ensuring adequate PCB copper area (at least 2 square inches of ground pour) or consider forced-air cooling for industrial -40 to +125 C environments.

Per the STMicroelectronics datasheet, the RSTIN pin must be held low for at least 1024 oscillator cycles during power-up to ensure proper initialization. Bootstrap loader mode is entered by pulling specific pins (P0L.4, P0L.5) high during reset. Do not leave unused ADC inputs floating - tie them to ground to prevent ADC channel crosstalk. Always issue a software reset before jumping to user code after programming to clear residual peripheral state.

Follow STMicroelectronics application note AN2409 PCB layout recommendations for EMC compliance on automotive platforms. Place the 5 V decoupling capacitors as close as possible to each VDD/VSS pin pair with short, wide traces. Use a single ground plane split only between analog AVSS and digital VSS at one point under the device. Route the CAN differential pair (CAN_TXD, CAN_RXD) as a 100-ohm impedance matched pair with no stubs. The crystal oscillator traces should be kept short and surrounded by ground pour.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

Compliance status not explicitly stated in the verified web data. Refer to the STMicroelectronics product page or contact ST directly for current RoHS, REACH, and lead-free declarations. The standard variant is not AEC-Q100 qualified; check the ST10F276 automotive-grade variant for AEC-Q100 status.

Données vérifiées le : 2026-10-10 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

ST10F276Z5T3 ST10F276Z5T3 datasheet STMicroelectronics ST10F276Z5T3 16-bit MCU 832KB Flash CAN 2.0B LQFP-144 microcontroller 40MHz ST10F276Z5T3 automotive body control ST10F276Z5T3 vs ST10F276Z5T6 ST10F276Z5T3 drop-in replacement buy ST10F276Z5T3 LCSC DigiKey price ST10F276Z5T3 pinout LQFP-144 ST10F276 NRND replacement ST10F276Z5T3 motor control FOC

Composants & termes associés

STMicroelectronics ST10F276Z5T3 ST10F276Z5T6 ST10F272Z2T3 ST10F276Z5Q3 ST10F273M-4T3 SAF-XC886CM-8FFI5VAC Infineon Technologies ST10 family CISC/RISC architecture 16-bit MCU microcontroller MAC unit DSP functions CAN 2.0B LQFP-144 LQFP surface mount Flash memory JTAG OCDS debug NRND automotive body control industrial PLC FOC motor control HVAC CANopen J1939 AEC-Q100 RoHS
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