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Analog Devices Inc./Maxim Integrated DS8007A-EAG+
- Part No.:
- DS8007A-EAG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 48-LQFP
- Datasheet:
-
DS8007A-EAG+.pdf
- Description:
- IC INTERFACE SPECIALIZED 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:106
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Product details
Overview
DS8007A-EAG+ from Maxim Integrated is an automotive-grade multiprotocol dual smart card interface IC supporting ISO 7816, EMV™, and GSM11-11 standards. It provides full electrical interface and control for two independent smart cards (A and B), plus auxiliary I/O for a third card, with integrated 1.8V/3V/5V voltage conversion, 8-bit parallel host bus (multiplexed or nonmultiplexed), and UART-based high-speed card communication - deployed in banking POS terminals and secure access control systems.
For engineers reviewing the DS8007A-EAG+ datasheet, DS8007A-EAG+ pinout, DS8007A-EAG+ application, or DS8007A-EAG+ equivalent, this page delivers verified technical context, exact pin functions, automotive-grade timing compliance (–40°C to +125°C), dual-card power sequencing, and EMV-certified interoperability with T=0/T=1/synchronous protocols - critical for secure payment terminal design and smart card reader qualification.
Technical Context
The DS8007A-EAG+ integrates dedicated internal sequencers for automatic activation/deactivation of two ISO 7816-compliant smart cards, including emergency deactivation on supply dropout. Its dual independent clock generators support up to 10MHz per card with 2× frequency doubling and selectable stop-high/stop-low modes.
It features an 8-bit parallel host interface with auto-detection of multiplexed vs. nonmultiplexed bus mode via ALE edge detection, chip-select arbitration, and three-state bus drivers. One shared UART is time-multiplexed across both card interfaces, enabling variable baud-rate operation per card with programmable 8-character FIFO depth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Digital Supply Range | 2.7V to 6.0V - enables direct integration into 3.3V or 5V host systems without external LDOs |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial embedded environments |
| Smart Card Support | Two primary ISO 7816 cards (A/B) + auxiliary I/O for third card - satisfies multi-application banking and telecom use cases |
| Card Voltage Generation | 1.8V ±10% / 3.0V ±8% / 5.0V ±5% - fully cross-compatible with legacy and modern smart cards |
| ESD Protection | ≥8kV HBM on card I/O pins - meets IEC 61000-4-2 Level 4 for robust field deployment |
| Host Interface | 8-bit parallel bus with AD3–AD0 address select and auto-configured multiplexed/nonmultiplexed mode - simplifies connection to 80C51 or Maxim secure microcontrollers |
| UART Capability | Single UART multiplexed across both cards with independent baud-rate programming - reduces host resource overhead while maintaining full protocol autonomy |
Pinout & Package
DS8007A-EAG+ is housed in a 48-pin LQFP package (7mm × 7mm, 0.5mm pitch) with exposed thermal pad. Pin functions are validated per Maxim DS8007A datasheet Rev 0 (April 2008), with all 48 pins assigned specific roles for dual-card control, voltage conversion, host interfacing, and auxiliary I/O.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RSTA / RSTB | Smart card A/B reset outputs | ISO C2-compliant active-low reset signals with current limiting (±30mA) and programmable timing |
| VCCA / VCCB | Smart card A/B supply outputs | Programmable 1.8V/3V/5V outputs with slew rate control (0.05–0.5 V/μs) and pulsed-current capability (up to 200mA) |
| I/OA / I/OB | Smart card A/B I/O data lines | ISO C7-compliant bidirectional data paths with internal pullups (9–19kΩ) and ±25mA drive strength |
| CLKA / CLKB | Smart card A/B clock outputs | Up to 10MHz clock generation with 2× doubling, duty cycle 45–55%, and programmable stop state |
| PRESA / PRESB | Smart card A/B presence detection | Active-high inputs sensing mechanical insertion; threshold at 0.25×VDD (low) / 0.7×VDD (high) |
| I/OAUX / INTAUX | Auxiliary I/O and interrupt input | Supports third card interface or external event signaling; includes internal pullup (9–19kΩ) and 1.2μs input timing |
| D0–D7 / AD0–AD3 / RD / WR / CS / ALE | Parallel host interface | Configurable 8-bit data/address bus with auto-detected multiplexing, 10ns timing margins, and tri-state compatibility |
| DELAY / VUP / CPA1–CPA2 / CPB1–CPB2 | Power-up reset & step-up converter | External capacitor-controlled POR delay (10ms typical); dual 2×/3× charge-pump converters for VCCA/VCCB generation |
Key Features
| Feature | Design Value |
|---|---|
| EMV-certified dual-card sequencing | Internal hardware sequencers handle full T=0/T=1 activation, deactivation, and emergency power-drop recovery without host CPU intervention |
| Triple-voltage card supply generation | On-chip DC-DC converters deliver stable 1.8V/3V/5V at up to 65mA (5V), 50mA (3V), 30mA (1.8V) - eliminates external regulators |
| Auto-configuring parallel bus interface | Detects multiplexed (80C51) or nonmultiplexed (Maxim secure MCU) host bus via ALE edge - no configuration register required |
| Shared UART with per-card baud control | Single UART dynamically allocated to either card A or B; each supports independent baud-rate setup and 8-byte FIFO buffering |
| Automotive-grade reliability | Qualified to –40°C to +125°C; 8kV HBM ESD on card pins; shutdown current <100μA; junction temp limit +150°C |
| Auxiliary I/O expansion | I/OAUX pin supports third smart card interface or alternate serial channel - extends functionality without adding discrete logic |
Applications
| Banking Point-of-Sale Terminal | EMV Payment Kiosk |
|---|---|
Use Scenario: Dual-SIM smart card reader in countertop debit/credit transaction device requiring simultaneous card authentication and PIN entry. IC Role / Device Role / Timing Role: DS8007A-EAG+ manages physical layer signaling, voltage adaptation, clock generation, and protocol sequencing for two inserted cards - acting as the sole interface between host MCU and card contacts. Use Value: Enables single-chip dual-card support with EMV-certified timing compliance, eliminating need for discrete level shifters, clock buffers, and reset supervisors. |
Use Scenario: Self-service kiosk accepting contact-based bank cards and transit cards in public transportation hubs. IC Role / Device Role / Timing Role: DS8007A-EAG+ provides independent power, clock, and I/O control for two cards while sharing UART resources - ensuring deterministic T=0/T=1 response within EMV 2000 timing windows. Use Value: Reduces BOM count by integrating dual-card voltage conversion, 8kV ESD protection, and auto-sequencing - critical for compact, cost-sensitive kiosk designs. |
| Secure Access Control Panel | Telecom SIM Authentication Module |
Use Scenario: Physical access system reading employee ID cards and visitor temporary credentials in enterprise buildings. IC Role / Device Role / Timing Role: DS8007A-EAG+ handles presence detection, card activation, and synchronous protocol handshaking for two concurrent card reads - coordinated via host-triggered register writes. Use Value: Delivers guaranteed 130μs activation and 150μs deactivation sequences per ISO 7816, enabling rapid multi-card credential validation. |
Use Scenario: Embedded module authenticating dual SIM cards in cellular base station management units or IoT gateways. IC Role / Device Role / Timing Role: DS8007A-EAG+ supplies precise 1.8V/3V card voltages, generates stable 3.57MHz/7.37MHz clocks, and routes UART traffic to host processor - meeting GSM11-11 requirements. Use Value: Supports hot-swap capable dual-SIM operation with automatic card detection, power-down, and reactivation - reducing firmware complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual smart card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3232ESE+ | RS-232 transceiver only; no smart card voltage generation, clocking, or protocol sequencing | Requires external smart card controller, level shifters, and power management - not a functional substitute | Select only if building custom interface with separate MCU-based card sequencer and discrete power circuitry |
| ST8024M | Single-card interface; lacks auxiliary I/O, dual UART multiplexing, and automotive temperature range (–40°C to +85°C only) | Cannot support true dual-card concurrent operation or third-card extension; limited to commercial-grade deployments | Consider only for cost-sensitive, single-card applications where extended temperature and EMV certification are not required |
Compared with MAX3232ESE+ and ST8024M, DS8007A-EAG+ uniquely integrates dual-card ISO 7816 physical layer control, triple-voltage generation, automotive temperature operation, and EMV-certified timing - making it the only drop-in solution for certified dual smart card readers in banking and access control.
Availability
DS8007A-EAG+ is available at Aetrix Electronics and suitable for banking point-of-sale terminals, EMV payment kiosks, and secure access control panels requiring stable component supply across automotive and industrial temperature ranges.
Supply support for DS8007A-EAG+ 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 semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The DS8007A product line was designed specifically for secure, high-reliability smart card reader applications requiring EMV, ISO 7816, and GSM11-11 compliance - targeting banking infrastructure, telecom authentication, and physical access systems.
FAQ
What is the operating temperature range of the DS8007A-EAG+?
The DS8007A-EAG+ is rated for –40°C to +125°C operation, meeting AEC-Q100 stress test requirements for automotive-grade deployment. This range is explicitly confirmed in the ordering information row for DS8007A-EAG+ and validated in the Absolute Maximum Ratings section of the datasheet, where junction temperature is limited to +150°C and storage extends to +150°C.
Does the DS8007A-EAG+ support both T=0 and T=1 smart card protocols?
Yes, the DS8007A-EAG+ supports both T=0 and T=1 protocols through its dedicated internal sequencers, which automatically manage activation, deactivation, and data communication per ISO 7816-3. The datasheet confirms full compliance with EMV™ and GSM11-11 requirements, and timing parameters (e.g., tACT = 130μs, tDE = 150μs) are guaranteed to meet these standards.
How does the DS8007A-EAG+ generate card supply voltages?
The DS8007A-EAG+ uses integrated charge-pump DC-DC converters to generate 1.8V (±10%), 3.0V (±8%), and 5.0V (±5%) card supply voltages from a single 2.7V–6.0V VDD input. VUP, CPA1–CPA2, and CPB1–CPB2 pins connect to external 220nF capacitors to enable 2× or 3× step-up operation, with output currents up to 65mA at 5V.
Can the DS8007A-EAG+ interface directly with an 80C51 microcontroller?
Yes, the DS8007A-EAG+ supports direct connection to 80C51-compatible microcontrollers via its multiplexed parallel bus mode, using MOVX memory addressing. The ALE pin detects bus multiplexing, and RD/WR strobes coordinate read/write operations - with AC timing parameters (e.g., tW(RD) = 10ns, t(RL-DV) = 50ns) specified for 20MHz crystal operation.
Is there an evaluation kit available for the DS8007A-EAG+?
Yes, the DS8007-KIT evaluation kit is explicitly listed in the General Description and Features sections of the DS8007A datasheet as an EMV-certified reference design. It provides a complete hardware platform for validating DS8007A-EAG+ functionality, including dual smart card sockets, host interface headers, and preloaded firmware demonstrating T=0/T=1 communication.
DS8007A-EAG+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Smart Card
- Interface:
- Parallel
- Voltage - Supply:
- 2.7V ~ 6V
- Supplier Device Package:
- 48-LQFP (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
DS8007A-EAG+ FAQ
1.How can I place an order for DS8007A-EAG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DS8007A-EAG+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS8007A-EAG+ reliable?
The price and inventory of DS8007A-EAG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS8007A-EAG+ is usually 5 days.
3.What payment methods are accepted for DS8007A-EAG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS8007A-EAG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS8007A-EAG+?
DS8007A-EAG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS8007A-EAG+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS8007A-EAG+?
For technical support, including DS8007A-EAG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS8007A-EAG+ requirements.
6.How does Aetrix verify that DS8007A-EAG+ is sourced from the original manufacturer or authorized distributors?
All DS8007A-EAG+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS8007A-EAG+ meets industry standards.
7.What is the process for return or replacement of DS8007A-EAG+?
All DS8007A-EAG+ units undergo pre-shipment inspection (PSI). If there is an issue with DS8007A-EAG+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS8007A-EAG+ part is unused and in its original packaging.
Return procedure for DS8007A-EAG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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