ProductsIntegrated CircuitsSTM32F103CBT6
PACKAGE REFERENCELQFP-48Confirm case, pinout and ordering suffix before purchase.
SOURCING REFERENCE RECORD

STM32F103CBT6

STMicroelectronics

Arm Cortex-M3 microcontroller with 128 KB Flash for embedded control.

Integrated Circuits32-bit microcontrollerLQFP-48
MPN
STM32F103CBT6
Manufacturer
STMicroelectronics
Family
32-bit microcontroller
Package
LQFP-48
Manufacturer channel coverage
Checked by RFQ
Data last checked
Checked Sep 28, 2026, 11:54 AM UTC
Lifecycle
Active
MANUFACTURER CHANNEL

Manufacturer-direct availability.

Only manufacturer-channel availability is shown here. Sourceics confirms the final source and commercial terms before quoting.

Sourceics pricing Sep 28, 2026, 11:54 AM UTC
No manufacturer-channel availability record was returned. Search results may show other market channels; those are not manufacturer availability or Sourceics-owned stock. Send an RFQ for source and stock verification.

Manufacturer-channel figures are the highest single-offer report, not a sum across offers or Sourceics-owned inventory. MOQ, packaging and lead time refer to that same reported offer; other formats need confirmation. Figures may change without notice. Displayed prices are Sourceics selling prices for the stated quantity breaks. Final source, quantity, price, lead time and traceability are confirmed in the quotation.

PROCUREMENT DATA

Identity and sourcing requirements.

Manufacturer part number
STM32F103CBT6
Manufacturer
STMicroelectronics
Product family
32-bit microcontroller
Category
Integrated Circuits
Package reference
LQFP-48
Manufacturer-channel report
Confirmed on request
Sourceics price status
Sourceics price USD 8.12 at 1+
Sourceics sourcing status
Supplier and stock verified during RFQ
Required order checks
Suffix, package, date code, lot, source and traceability
MANUFACTURER DATA REVIEW

Device and package reference

Manufacturer device/package data only. Full ordering-code validity, grade and current lifecycle are not established by this reference; confirm them during quotation.

Core
Arm Cortex-M3, up to 72 MHz
Flash memory
128 KB
SRAM
20 KB
Supply voltage
2.0 V to 3.6 V
Key interfaces
USB, CAN, up to 2x I2C, up to 2x SPI, 3x USART
Peripherals
Two 12-bit ADCs, general-purpose and PWM timers
Order code
C = 48 pins · B = 128 KB Flash · T = LQFP · 6 = −40…+85 °C
Source: STMicroelectronics STM32F103CB product page · DS5319 Rev 20 · Reviewed 2026-09-28
QUOTE WORKFLOW

Four checks before a commercial offer.

01

Identity

Exact MPN, manufacturer and suffix

02

Supply

Supplier type, quantity and freshness

03

Evidence

Lot, labels, photos and documents

04

Terms

Price, lead time, payment and shipping

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