MAX32550

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First found Nov 13, 2015

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ABRIDGED
DATA SHEET
MAX32550
EVALUATION KIT AVAILABLE
DeepCover Secure Cortex-M3
Flash Microcontroller
General Description
Benefits and Features
The DeepCover Secure microcontroller (MAX32550) provides an interoperable, secure, and cost-effective solution
to build new generations of trusted devices such as mobile
chip and pin pads. The MAX32550 is based on a Cortex
M3 processor with 1MB of embedded flash, 256KB of
system RAM, 8KB of battery-backed AES self-encrypted
NVSRAM. It includes all the essential functions of mobile
POS terminal including a cryptographic engine, a true
random number generator, battery-backed RTC, environmental and tamper detection circuitry, a magnetic stripe
reader, a smart card controller with embedded transceiver
to directly support 1.8V, 3.3V, and 5V cards, and an integrated secure keypad controller. It also provides a seamless interface to TFT displays and includes a vast array of
peripherals, SPIs, UARTs, DMA, ADC, and DAC that add
flexibility to control and differentiate the system design.
●● Security Features Facilitate System-Level Protection
• Secure Boot Loader with Public Key Authentication
• AES, DES and SHA Hardware Accelerators
• Modulo Arithmetic Hardware Accelerator (MAA)
Supporting RSA, DSA, and ECDSA
• 8-Line Secure Keypad Controller
• Hardware True Random-Number Generator
• Die Shield with Dynamic Fault Detection
• 6 External Tamper Sensors with Independent
Random Dynamic Patterns
• 256-Bit Flip-Flop-Based Battery-Backup AES Key
Storage
• Temperature and Voltage Tamper Monitor
• Real-Time Clock
DeepCover® embedded security solutions cloak sensitive
data under multiple layers of advanced physical security
to provide the most secure key storage possible.
Applications
●● PCI Mobile Payment Terminals (mPOS)
●● ATM Keyboards
●● EMV Card Reader
Functional Diagram
MAX32550
ARM
CORTEX M3
APB PERIPHERALS
NVIC
MPU
I D
I
AHB
I S
AHB I
I
APB BRIDGE
AHB PERIPHERALS
CODE SPACE
FLASH
1MB
SRAM
256kB
NVSRAM
8kB*
ROM
64kB
DMA
CRYPTO
USB DEVICE
TRNG
TFT
DAC
APB
SECURITY
MONITOR*
RTC*
WATCHDOG
OSC/PLL (2)
OTP
GPIO
TIMERS (6)
KEYPAD
UART (2)
SPI (3)
I2C
ADC
SMART CARD
●● ARM® Cortex® M3 Processor Core Allows for Easy
Integration into Applications
• 108MHz Core Operating Frequency Through PLL
• 1MB Dual-Bank Flash Memory with Cache
• 256KB System SRAM
• 8KB AES Self-Encrypted NVSRAM
●● Integrated Peripherals Reduce External Component Count
• Triple-Track Magnetic Stripe Head Interface
• One ISO 7816 Smart Card Interface with Integrated
Transceiver (1.8V, 3V, and 5V)
• USB 2.0 Device with Internal Transceiver and
Dedicated PLL
• 3 SPI Ports, 2 UART Ports, and 1 I2C Controller
• 6 Timers, 4 with PWM Capability
• Up to 70 General-Purpose I/O Pins
• 2-Channel, 10-Bit ADC and 1-Channel, 8-Bit DAC
• Color/Monochrome LCD TFT Controller
• 4-Channel DMA Controller
●● Power Management Optimizes Battery Life and
Reduces Active Power Consumption
• Single 3.3V Supply Operation*
• Integrated Battery-Backup Switch
• Clock Gating Function
• Low-Current Battery-Backup Operation
MONO LCD
MSR
* BATTERY-BACKED BLOCKS
*5V smart card support requires external 5.0V supply.
DeepCover is a registered trademark of Maxim Integrated Products, Inc.
ARM and Cortex are registered trademarks and ARM is a service mark of
ARM Limited.
19-7145; Rev 1; 12/14
ABRIDGED
DATA SHEET
MAX32550
Additional Documentation
Designers must have the following documents to fully use
all the features of this device. This data sheet contains
pin descriptions, feature overviews, and electrical specifications. Errata sheets contain deviations from published
specifications. User guides contain detailed descriptions
of device features and peripherals from a programming
perspective.
●●
This MAX32550 data sheet, which contains electrical/
timing specifications, package information, and pin
descriptions.
●●
The MAX32550 revision-specific errata sheet.
●●
The MAX32550 User Guide, which contains detailed
information and programming guidelines for core features and peripherals.
Development and Technical Support
Technical support is available at https://support.maximintegrated.com/micro.
DeepCover Secure Cortex-M3
Flash Microcontroller
Ordering Information
PART
PIN-PACKAGE
ICE
MAX32550-LNS+
121 CSBGA
(8mm x 8mm, 0.65mm pitch)
No
MAX32550-LNJ+
121 CSBGA
(8mm x 8mm, 0.65mm pitch)
Yes
+Denotes a lead(Pb)-free/RoHS-compliant package.
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
LAND
PATTERN NO.
121 CSBGA
X12188+2C
21-0680
90-0451
Note to readers: This document is an abridged version of the full data sheet. To request the full data sheet, go
to www.maximintegrated.com/MAX32550 and click on Request Full Data Sheet.
www.maximintegrated.com
Maxim Integrated │ 20

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