The following document contains information on Cypress products. The document has the series name, product name, and ordering part numbering with the prefix MB. However, Cypress will offer these products to new and existing customers with the series name, product name, and ordering part number with the prefix CY. How to Check the Ordering Part Number 1. Go to www.cypress.com/pcn. 2. Enter the keyword (for example, ordering part number) in the SEARCH PCNS field and click Apply. 3. Click the corresponding title from the search results. 4. Download the Affected Parts List file, which has details of all changes For More Information Please contact your local sales office for additional information about Cypress products and solutions. About Cypress Cypress is the leader in advanced embedded system solutions for the world s most innovative automotive, industrial, smart home appliances, consumer electronics and medical products. Cypress microcontrollers, analog ICs, wireless and USB-based connectivity solutions and reliable, high-performance memories help engineers design differentiated products and get them to market first. Cypress is committed to providing customers with the best support and development resources on the planet enabling them to disrupt markets by creating new product categories in record time. To learn more, go to www.cypress.com. MB9A140NB Series 32-bit ARM Cortex -M3 FM3 Microcontroller The MB9A140NB Series are highly integrated 32-bit microcontrollers dedicated for embedded controllers with low-power consumption mode and competitive cost. These series are based on the ARM Cortex-M3 Processor with on-chip Flash memory and SRAM, and have peripheral functions 2 such as various timers, ADCs, and Communication Interfaces (UART, CSIO, I C). The products which are described in this datasheet are placed into TYPE6 product categories in FM3 Family Peripheral Manual. Features * 32-bit ARM Cortex -M3 Core External Bus Interface Processor version: r2p1 Supports SRAM, NOR Flash memory device Up to 40 MHz Frequency Operation Up to 8 chip selects Integrated Nested Vectored Interrupt Controller (NVIC): 8-/16-bit Data width 1 NMI (non-maskable interrupt) and 48 peripheral interrupts Up to 25-bit Address bit and 16 priority levels Maximum area size: Up to 256 MB 24-bit System timer (Sys Tick): System timer for OS task management Supports Address/Data multiplex Supports external RDY function On-chip Memories *: MB9AF141LB, F142LB and F144LB do not support External Bus Interface. Flash memory Dual operation Flash memory Multi-function Serial Interface (Max 8 channels) Dual Operation Flash memory has the upper bank and the lower bank. 4 channels with 16 steps9-bit FIFO (ch.4 to ch.7), 4 So, this series could implement erase, write and read channels without FIFO (ch.0 to ch.3) operations for each bank simultaneously. Operation mode is selectable from the followings for each Main area: Up to 256 Kbytes (Up to 240 Kbytes upper bank channel. + 16 Kbytes lower bank) UART Work area: 32 Kbytes (lower bank) CSIO I2C Read cycle: 0 wait-cycle UART Security function for code protection Full-duplex double buffer SRAM Selection with or without parity supported This Series on-chip SRAM is composed of two independent SRAM (SRAM0, SRAM1). SRAM0 is connected to I-code bus Built-in dedicated baud rate generator and D-code bus of Cortex-M3 core. SRAM1 is connected to External clock available as a serial clock System bus. * Hardware Flow control : Automatically control the SRAM0: Up to 16 KB transmission by CTS/RTS (only ch.4) SRAM1: Up to 16 KB Various error detection functions available (parity errors, framing errors, and overrun errors) *: MB9AF141LB, F142LB and F144LB do not support Hardware Flow control. Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 002-05637 Rev.*B Revised June 1, 2017