MS51FB9AE
NuvotonThe MS51FB9AE is a 1T 8051 microcontroller from Nuvoton's NuMicro MS51 series, with 16KB Flash, 1KB SRAM, a 24MHz core, 18 I/O pins and an 8-channel 12-bit ADC, supplied in TSSOP-20 and specified for the industrial range of -40 C to +105 C. It covers cost-sensitive control tasks in appliances, power tools and small industrial nodes where an 8051 code base already exists, pairing a compact footprint with enough analogue input for sensor front ends. The code itself decodes cleanly: F marks the TSSOP-20 package, B the 16KB Flash, 9 the 1KB SRAM and E the industrial temperature grade. Selection advice: because the MS51 family spans several package and memory combinations, match the complete MS51FB9AE string to your BOM rather than ordering by the series name alone. Parameters verified against Nuvoton documentation.
- MPN
- MS51FB9AE
- Manufacturer
- Nuvoton
- Family
- 8051 microcontroller
- Package
- TSSOP-20
- Manufacturer channel coverage
- Checked by RFQ
- Data last checked
- Commercial check required
- Required order checks
- Suffix, package, date code, lot, source and traceability
Four checks before a commercial offer.
Identity
Exact MPN, manufacturer and suffix
Supply
Supplier type, quantity and freshness
Evidence
Lot, labels, photos and documents
Terms
Price, lead time, payment and shipping
Explore more Integrated Circuits records
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
MS51FB9AE FAQ
What should I check before substituting MS51FB9AE with another 8051 microcontroller?
Match the full ordering code, not the series name: package (TSSOP-20), temperature grade and packing all ride on the suffixes. A same-series code in a different package is a different orderable device, so confirm the substitute against the Nuvoton datasheet before changing the BOM.