Analog Devices Inc./Maxim Integrated ZA9L1043NW2CSGA427

Overview

The ZA9L1043NW2CSGA427 from Maxim Integrated is a PCI 2.0-compliant, secure ARM922T-based SoC microcontroller operating at 200MHz, featuring 64KB zero-wait-state SRAM, dual 256-pin BGA package (1.0mm pitch), and integrated security peripherals including tamper sensors, NIST 800-22–compliant RNG, FIPS 180-2 SHA-1 hash engine, and two ISO 7816 smart card UARTs - deployed in EFTPOS terminals and PIN pads.

For engineers reviewing the ZA9L1043NW2CSGA427 datasheet, ZA9L1043NW2CSGA427 pinout, ZA9L1043NW2CSGA427 application, or ZA9L1043NW2CSGA427 equivalent, key selection criteria include PCI-compliant tamper detection, secure boot ROM with customer-unique keys, 3-track magnetic stripe reader interface, 10-bit 4-channel ADC, and dual SPI/USB 2.0 OTG support for payment terminal design.

Technical Context

The ZA9L1043NW2CSGA427 implements an ARM922T core with MMU enabling Linux® and Windows® Embedded CE OS support, paired with 8KB/8KB I/D caches and vectored interrupt controller. Its dual external bus architecture supports synchronous flash and SDRAM (16MB–512MB) while maintaining strict isolation between primary and secure buses.

Security is enforced via hardware-level mechanisms: voltage/temperature/frequency sensors, active zeroization of 4KB secure SRAM on tamper event, battery-backed RTC, and cryptographic verification of boot image using customer-specific keys stored in embedded secure boot ROM.

Key Specifications

Pinout & Package

ZA9L1043NW2CSGA427 is housed in a 256-ball fine-pitch ball grid array (LFBGA) package with 1.0mm ball pitch and RoHS-compliant finish. Pin assignments are defined per Maxim's official ZA9L1 pinout diagram (Rev 0, March 2009).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX32590 and SLI97, the ZA9L1043NW2CSGA427 uniquely integrates PCI 2.0–required tamper sensing, 3-track magstripe front-end, and dual ISO 7816 interfaces - reducing bill-of-materials and enabling single-chip EFTPOS certification.

Availability

ZA9L1043NW2CSGA427 is available at Aetrix Electronics and suitable for EFTPOS terminals, PIN pads, and electronic payment peripherals requiring stable component supply, long-term lifecycle assurance, and PCI-compliant security features.

Supply support for ZA9L1043NW2CSGA427 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and secure microcontroller solutions for industrial, automotive, and payment systems.

The Zatara® product line was developed specifically to address PCI Security Standards Council requirements for point-of-sale transaction security - integrating tamper detection, secure memory, and certified cryptographic engines into a single ARM9-based SoC.

FAQ

What is the operating temperature range for ZA9L1043NW2CSGA427?

The ZA9L1043NW2CSGA427 is rated for industrial operation from –40°C to +85°C. This range is validated across all integrated security functions, including tamper sensors and secure SRAM retention, ensuring reliable performance in uncontrolled retail and kiosk environments where thermal cycling occurs.

Does ZA9L1043NW2CSGA427 support Linux® or other real-time operating systems?

Yes, ZA9L1043NW2CSGA427 supports Linux® and Windows® Embedded CE due to its ARM922T core with MMU and 8KB/8KB instruction/data caches. The MMU enables full virtual memory management required for multitasking OS deployment in EFTPOS and PIN pad applications.

How does the secure boot process work in ZA9L1043NW2CSGA427?

The ZA9L1043NW2CSGA427 uses an embedded secure boot ROM that cryptographically verifies the application image using customer-unique keys before execution. This prevents unauthorized firmware loading and ensures only authenticated, signed code runs - a mandatory requirement for PCI 2.0 compliance.

Is ZA9L1043NW2CSGA427 pin-compatible with other ZA9L1 variants?

Yes, all ZA9L1 family members, including ZA9L1043NW2CSGA427, share the same 256-ball LFBGA package and pinout. Differences between variants (e.g., ZA9L1043 vs. ZA9L1042) relate to pre-programmed security keys and minor configuration fuses - not physical layout or electrical interface.

What interfaces does ZA9L1043NW2CSGA427 provide for smart card readers?

ZA9L1043NW2CSGA427 includes two dedicated ISO 7816-compliant UARTs with built-in protocol handling for contact smart cards. These interfaces support T=0 and T=1 protocols and integrate clock generation, reset control, and voltage regulation - eliminating need for external smart card controller ICs.