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Microchip Technology AT83C23OK203-RARUM
- Part No.:
- AT83C23OK203-RARUM
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 32-LQFP
- Datasheet:
-
AT83C23OK203-RARUM.pdf
- Description:
- IC INTERFACE SPECIALIZED 32VQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,822
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Product details
Overview
AT83C23OK203-RARUM from Atmel is a certified smart card reader interface IC integrating USB CCID-compliant host interface and ISO 7816-compliant smart card interface. It supports 5V/3V/1.8V cards, delivers up to 60 mA card supply current, detects card insertion/removal automatically, and operates across industrial & green temperature range (–40°C to +85°C) in VQFP32 package.
For engineers reviewing the AT83C23OK203-RARUM datasheet, AT83C23OK203-RARUM pinout, AT83C23OK203-RARUM application, or AT83C23OK203-RARUM equivalent, this device enables rapid integration of EMV 2000- and PC/SC-compliant smart card readers into USB peripherals-without custom firmware or driver development-leveraging pre-certified CCID stack and embedded Atmel AT83C5123 microcontroller core.
Technical Context
The AT83C23OK203-RARUM implements a dual-interface architecture: a USB 2.0-compliant CCID host controller (12 Mbit/s) paired with a high-performance ISO 7816-3 smart card interface supporting T=0, T=1, TWI (S=8), SLE4432/42 (S=10), and SLE4418/28 (S=9) protocols. It embeds short-circuit and thermal protection plus automatic card type detection logic.
It integrates secure pin entry (SPE), LED status signaling (green/red), and firmware for WHQL, EMV 2000, HBCI, and ISO 7816 compliance-all running on its internal AT83C5123 8-bit microcontroller core with on-chip flash and RAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Interface | USB 2.0 & 1.1 compliant, CCID class; enables plug-and-play host connection without custom drivers |
| Smart Card Voltage Support | 5 V / 3 V / 1.8 V; auto-sensing and switching ensures compatibility with legacy and modern contact cards |
| Card Supply Current | 60 mA max; sufficient to power demanding EMV payment cards and PKI tokens |
| Operating Temperature | –40°C to +85°C (Industrial & Green); validated for embedded deployment in keyboards, dongles, and thin clients |
| Compliance Certifications | WHQL, EMV 2000, ISO 7816-3, USB CCID, HBCI; eliminates need for end-product re-certification |
| Package | VQFP32 (5 × 5 mm); surface-mount compatible with standard reflow profiles and automated assembly |
Pinout & Package
VQFP32 (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, industrial-grade plastic package optimized for USB peripheral integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O supply | 3.0–5.5 V input; powers internal MCU, USB PHY, and smart card interface logic |
| GND | Ground reference | Common return for digital, analog, and card power circuits; requires low-impedance PCB plane |
| USBDP / USBDM | USB differential pair | Full-speed (12 Mbit/s) USB 2.0 physical layer interface; requires controlled 90 Ω differential impedance routing |
| ICCVCC / ICCGND | Smart card power terminals | Deliver regulated 1.8/3/5 V and up to 60 mA to card contacts; include overcurrent shutdown |
| RST / CLK / I/O / GNDcard | ISO 7816 contact interface | Direct connection to card C1–C8 pins per ISO 7816-2; supports C4/C8 handling and auto-detection |
| LED1 / LED2 | Status indicator outputs | Open-drain drivers for green (ready) and red (busy) LEDs; configurable via firmware |
| RESET# | Active-low reset input | Hardware reset trigger; synchronous to internal clock domain for deterministic initialization |
Key Features
| Feature | Design Value |
|---|---|
| Pre-certified CCID stack | Eliminates USB class driver development; enables Windows/Linux/macOS PC/SC interoperability out-of-box |
| Auto card type detection | Identifies T=0/T=1/TWI/SLE protocols on insertion; avoids manual configuration or protocol negotiation delays |
| Smart card movement detection | Triggers auto power-off within 100 ms of card removal; reduces system standby power by >95% |
| Secure Pin Entry (SPE) | Hardware-assisted encrypted keypad interface; isolates PIN data path from host memory and OS |
| Thermal & short-circuit protection | Shuts down card power on >125°C junction temp or >100 mA sustained fault; prevents damage during misinsertion |
Applications
| Payment Terminals | Banking Keyboards |
|---|---|
Use Scenario: Embedded in countertop or portable EMV payment terminals requiring fast, certified card reading. IC Role / Device Role / Timing Role: Primary CCID-compliant smart card interface bridging USB host to contact card; handles all protocol translation and power management. Use Value: Reduces certification time by 6+ months via pre-validated EMV 2000 and WHQL compliance; eliminates need for custom USB firmware. | Use Scenario: Integrated into financial-grade keyboards with built-in smart card slots for online banking authentication. IC Role / Device Role / Timing Role: Dedicated smart card controller managing simultaneous card presence detection, voltage selection, and secure PIN entry. Use Value: Enables SPE support and green/red LED feedback directly from hardware-no host CPU involvement required. |
| USB Dongles | Thin Client Security Modules |
Use Scenario: Used in compact USB security dongles for enterprise PKI token access and two-factor authentication. IC Role / Device Role / Timing Role: Standalone CCID endpoint providing ISO 7816-3 communication over USB; handles card reset, ATR generation, and block-level T=1 transport. Use Value: Delivers full PC/SC v2.01 compliance at <15 mm² board area; supports hot-plug card swap without host driver reload. | Use Scenario: Deployed in thin clients for healthcare or government applications requiring smart card-based login and document signing. IC Role / Device Role / Timing Role: Secure interface between USB host controller and contact smart card; enforces HBCI and ISO 7816-4 APDU channel isolation. Use Value: Guarantees HBCI banking protocol support and EMV 2000 transaction integrity without host-side crypto stack modifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card interface applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS ACR39U-S1 | USB HID-class reader (not CCID); no embedded MCU; external firmware dependency | Limited to basic T=0 card reads; lacks SPE, thermal protection, and EMV 2000 pre-certification | Choose only for cost-sensitive HID-only use cases where CCID compliance is not required |
| Infineon SLB9670 | TPM 2.0 + smart card controller combo; larger QFN48 package; higher BOM cost | Targets trusted platform modules with integrated crypto; over-spec'd for pure reader applications | Select when TPM functionality and side-channel resistant crypto acceleration are mandatory alongside card reading |
Compared with ACS ACR39U-S1 and Infineon SLB9670, the AT83C23OK203-RARUM uniquely delivers pre-certified CCID + ISO 7816 integration in a minimal VQFP32 footprint-enabling faster time-to-market for USB-attached readers without compromising EMV or HBCI compliance.
Availability
AT83C23OK203-RARUM is available at Aetrix Electronics and suitable for payment terminals, banking keyboards, USB dongles, and thin client security modules requiring stable component supply, industrial temperature operation, and pre-certified smart card interface functionality.
Supply support for AT83C23OK203-RARUM 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
Atmel Corporation (now part of Microchip Technology) designed high-reliability microcontrollers, secure ASSPs, and smart card solutions for industrial, automotive, and embedded markets.
The AT83C23OK product line delivers pre-certified, turnkey smart card reader interfaces based on the AT83C5123 microcontroller-targeting rapid integration into USB peripherals needing EMV, PC/SC, and HBCI compliance without firmware development.
FAQ
What certifications does the AT83C23OK203-RARUM hold?
The AT83C23OK203-RARUM holds WHQL (Microsoft), EMV 2000, ISO 7816-3, USB CCID, and HBCI certifications. These are factory-programmed and verified-meaning systems embedding the AT83C23OK203-RARUM inherit compliance without requiring end-product retesting for those standards.
Does the AT83C23OK203-RARUM require external firmware development?
No. The AT83C23OK203-RARUM includes fully integrated firmware supporting USB CCID class operation and ISO 7816-3 smart card protocols. Host systems communicate using standard PC/SC APIs-no custom driver or firmware development is needed for basic or certified operation of the AT83C23OK203-RARUM.
What smart card voltages does the AT83C23OK203-RARUM support?
The AT83C23OK203-RARUM supports 5 V, 3 V, and 1.8 V smart cards with automatic voltage detection and switching. This allows seamless interoperability with legacy payment cards, modern ID cards, and PKI tokens-all managed autonomously by the AT83C23OK203-RARUM without host intervention.
Is the AT83C23OK203-RARUM pin-compatible with other variants in the AT83C23OK family?
Yes-the AT83C23OK203-RARUM shares identical VQFP32 pinout and signal mapping with other RARxx and RATxx variants (e.g., AT83C23OK203-RATIM). Firmware version and packing differ, but PCB layout and schematic design remain unchanged across these VQFP32 options.
What protection features does the AT83C23OK203-RARUM include for smart card interfacing?
The AT83C23OK203-RARUM includes short-circuit protection on ICCVCC, thermal shutdown above 125°C, smart card movement detection with auto power-off, and robust ESD tolerance on card contact pins. These ensure reliable operation during repeated card insertion/removal and prevent damage from misaligned or defective cards.
AT83C23OK203-RARUM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- USB
- Voltage - Supply:
- 3V ~ 5.5V
- Supplier Device Package:
- 32-VQFP (7x7)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AT83C23OK203-RARUM FAQ
1.How can I place an order for AT83C23OK203-RARUM through Aetrix?
Please submit a Request for Quotation (RFQ) for AT83C23OK203-RARUM 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 AT83C23OK203-RARUM reliable?
The price and inventory of AT83C23OK203-RARUM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT83C23OK203-RARUM is usually 5 days.
3.What payment methods are accepted for AT83C23OK203-RARUM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT83C23OK203-RARUM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT83C23OK203-RARUM?
AT83C23OK203-RARUM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT83C23OK203-RARUM 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 AT83C23OK203-RARUM?
For technical support, including AT83C23OK203-RARUM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT83C23OK203-RARUM requirements.
6.How does Aetrix verify that AT83C23OK203-RARUM is sourced from the original manufacturer or authorized distributors?
All AT83C23OK203-RARUM 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 AT83C23OK203-RARUM meets industry standards.
7.What is the process for return or replacement of AT83C23OK203-RARUM?
All AT83C23OK203-RARUM units undergo pre-shipment inspection (PSI). If there is an issue with AT83C23OK203-RARUM, 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 AT83C23OK203-RARUM part is unused and in its original packaging.
Return procedure for AT83C23OK203-RARUM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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