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Winbond Electronics MS51 Series

7 variants · Winbond Electronics

About the Winbond Electronics Winbond Electronics MS51 Series series

The Winbond Electronics Winbond Electronics MS51 Series series groups 7 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common connectivity of I²C, SPI, UART/USART, core processor of 8051 and core size of 8-Bit. Variants differ by case, data converters and number of i (O), so you can match the exact case your application requires using the selection guide below. All listed Winbond Electronics MS51 Series part numbers are active and orderable.

Select a variant by

Case
10-TFSOP, 10-MSOP (0.118\", 3.00mm Width) · 20-TSSOP (0.173\", 4.40mm Width) · 20-WFQFN Exposed Pad · 28-TSSOP (0.173\", 4.40mm Width) · 32-LQFP
Data converters
A/D 4x12b SAR · A/D 8x12b SAR · A/D 10x12b SAR · A/D 15x12b SAR
Number of i (O)
8 · 18 · 26 · 30
Operating temperature
-40°C ~ 105°C (TA) · -40°C~105°C(TA)
Package
Tray · Tube
Program memory size
8KB (8K x 8) · 16KB (16K x 8) · 32KB (32K x 8)
RAM size
1K x 8 · 2K x 8

Variant comparison

ParameterMS51FC0AEMS51BA9AEMS51EC0AEMS51FB9AEMS51PC0AEMS51TC0AE
Case20-TSSOP (0.173\", 4.40mm Width)10-TFSOP, 10-MSOP (0.118\", 3.00mm Width)28-TSSOP (0.173\", 4.40mm Width)20-TSSOP (0.173\", 4.40mm Width)32-LQFP20-WFQFN Exposed Pad
Data convertersA/D 10x12b SARA/D 4x12b SARA/D 15x12b SARA/D 8x12b SARA/D 15x12b SARA/D 15x12b SAR
Number of i (O)18826183030
Operating temperature-40°C ~ 105°C (TA)-40°C~105°C(TA)-40°C~105°C(TA)-40°C~105°C(TA)-40°C~105°C(TA)-40°C~105°C(TA)
PackageTubeTubeTubeTubeTrayTray
Program memory size32KB (32K x 8)8KB (8K x 8)32KB (32K x 8)16KB (16K x 8)32KB (32K x 8)32KB (32K x 8)
RAM size2K x 81K x 82K x 81K x 82K x 82K x 8

Shared specifications

Connectivity
I²C, SPI, UART/USART
Core processor
8051
Core size
8-Bit
EEPROM size
-
Mounting type
Surface Mount
Oscillator type
Internal
Peripherals
Brown-out Detect/Reset, LVR, POR, PWM, WDT
Program memory type
FLASH
Speed
24MHz
Voltage - supply (Vcc (Vdd))
2.4V ~ 5.5V

Request a quote on any Winbond Electronics MS51 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Winbond Electronics Winbond Electronics MS51 Series variants differ?
Winbond Electronics MS51 Series part numbers differ by case, data converters, number of i (O) and operating temperature. Use the selection guide above to pick by case.
How many Winbond Electronics Winbond Electronics MS51 Series part numbers are listed?
7 Winbond Electronics Winbond Electronics MS51 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Winbond Electronics Winbond Electronics MS51 Series?
Request a quote (RFQ) for any Winbond Electronics MS51 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants