Analog Devices Inc./Maxim Integrated ZA9L1037NW2CSGA426

Overview

The ZA9L1037NW2CSGA426 from Maxim Integrated is a PCI 2.0-compliant, high-security ARM922T-based SoC microcontroller operating at 200MHz, featuring 64KB zero-wait-state SRAM, dual 256-pin LFBGA package (1.0mm pitch), and integrated tamper detection sensors for POS terminal applications.

For engineers reviewing the ZA9L1037NW2CSGA426 datasheet, ZA9L1037NW2CSGA426 pinout, ZA9L1037NW2CSGA426 application, or ZA9L1037NW2CSGA426 equivalent, key selection criteria include secure boot ROM with customer-unique keys, FIPS 180-2 SHA-1 hash generation, NIST 800-22 RNG, dual ISO 7816 UARTs, and 3-track magnetic stripe reader interface.

Technical Context

The ZA9L1037NW2CSGA426 implements a dual-bus architecture with primary and secondary external buses supporting SDRAM (16MB–512MB) and synchronous flash, alongside an AHB/APB bridge for peripheral access. It integrates a security controller with environmental sensors (voltage, temperature, frequency), tamper switch/wire mesh detection, and battery-backed 4KB secure SRAM with active zeroization.

Its communication subsystem includes three UARTs (one 8-wire, two 4-wire), two dedicated SPI interfaces, USB 2.0 OTG, nine timer/counters with PWM, and two ISO 7816 smart card UARTs - all mapped to up to 76 GPIO pins with 5V-tolerant capability on UART/SPI I/O.

Key Specifications

Pinout & Package

ZA9L1037NW2CSGA426 is housed in a 256-ball Low-Profile Fine-Pitch Ball Grid Array (LFBGA) package with 1.0mm ball pitch and RoHS-compliant finish. Pin assignments follow Maxim's standard ZA9L1 pin mapping for secure POS SoC functionality.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar secure microcontroller applications.

Compared with Infineon SLI97xx and NXP LPC18xx, the ZA9L1037NW2CSGA426 delivers PCI PTS v2.0 compliance out-of-box via integrated tamper sensors, secure boot, and certified crypto engines-reducing certification time by 6–12 months and eliminating external secure element dependencies.

Availability

ZA9L1037NW2CSGA426 is available at Aetrix Electronics and suitable for EFTPOS terminals, PIN pads, and electronic payment terminals requiring stable component supply, long-term lifecycle support, and PCI-certified security features.

Supply support for ZA9L1037NW2CSGA426 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and secure ICs for industrial, healthcare, communications, and consumer applications.

The ZA9L1 product line was developed specifically for PCI-compliant point-of-sale systems, integrating security, interface, and real-time control functions into a single SoC to accelerate certified terminal development.

FAQ

What security certifications does the ZA9L1037NW2CSGA426 support out of the box?

The ZA9L1037NW2CSGA426 is designed to meet Payment Card Industry (PCI) PTS v2.0 requirements. It includes hardware-enforced security features such as tamper detection sensors, secure boot ROM with customer-unique keys, NIST 800-22-compliant RNG, and FIPS 180-2 SHA-1 hash generation-all validated for PCI PTS compliance. The ZA9L1037NW2CSGA426 does not require external secure elements to achieve this level of certification.

Does the ZA9L1037NW2CSGA426 include an integrated magnetic stripe reader interface?

Yes, the ZA9L1037NW2CSGA426 integrates a dedicated 3-track magnetic stripe reader interface with analog front-end circuitry, signal conditioning, and decoding logic. This eliminates the need for external magstripe ASICs in POS terminals and PIN pads. The ZA9L1037NW2CSGA426 supports ISO/IEC 7811 standards for track 1, 2, and 3 decoding.

What is the role of the secure 4KB SRAM in the ZA9L1037NW2CSGA426?

The ZA9L1037NW2CSGA426 includes 4KB of battery-backed secure SRAM used to store cryptographic keys, session tokens, and sensitive runtime data. It features fast hardware erase upon tamper detection (e.g., voltage glitch, temperature anomaly, or physical intrusion). This ensures zeroization of secrets before attackers can extract them, a mandatory requirement for PCI PTS v2.0 certification.

Can the ZA9L1037NW2CSGA426 run Linux or other full-featured operating systems?

Yes, the ZA9L1037NW2CSGA426 includes an ARM922T core with MMU support, enabling execution of Linux® and Windows® Embedded CE. Its 64KB zero-wait-state SRAM and dual external bus interface allow efficient OS operation with external SDRAM (up to 512MB). The ZA9L1037NW2CSGA426 has been validated with Linux kernel 2.6.x for POS terminal reference designs.

How many GPIO pins does the ZA9L1037NW2CSGA426 support, and what are their voltage tolerances?

The ZA9L1037NW2CSGA426 provides up to 76 general-purpose I/O pins with configurable multiplexing. Its GPIOs operate at 3.3V I/O voltage and are 5V tolerant on UART and SPI signal lines-enabling direct interfacing with legacy 5V peripherals without level shifters. The ZA9L1037NW2CSGA426 pinout reserves specific balls for tamper, RTC, and secure memory control functions.

Is JTAG debugging supported on the ZA9L1037NW2CSGA426?

Yes, the ZA9L1037NW2CSGA426 includes full JTAG Embedded ICE (In-Circuit Emulation) support for real-time debugging, boundary scan testing, and firmware development. The JTAG interface is accessible via dedicated pins and is enabled across all operating modes-including active, idle, and battery backup. This capability is documented in the ZA9L1037NW2CSGA426 functional diagram and abridged data sheet.