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Microchip Technology AT83C22OK104-RDTUM
- Part No.:
- AT83C22OK104-RDTUM
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- -
- Datasheet:
-
AT83C22OK104-RDTUM.pdf
- Description:
- IC INTERFACE SPECIALIZED 64VQFP
- Quantity:
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Inventory:1,667
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Product details
Overview
AT83C22OK104-RDTUM from Atmel is a certified smart card reader system-on-chip for USB keyboards, integrating ISO 7816-compliant smart card interface (T=0/T=1/TWI), USB 2.0 CCID host interface, and keyboard matrix controller. It supports 1.8V/3V/5V cards, delivers 60 mA card power, and includes thermal/short-circuit protection. Used in EMV-certified banking keyboards and PKI token peripherals.
For engineers reviewing the AT83C22OK104-RDTUM datasheet, AT83C22OK104-RDTUM pinout, AT83C22OK104-RDTUM application, or AT83C22OK104-RDTUM equivalent, this page provides verified package mapping, functional pin roles, real-world use cases, and validated alternative parts for smart card reader integration into USB peripheral designs.
Technical Context
The AT83C22OK104-RDTUM implements a dual-function embedded controller based on the AT83C5122 microcontroller core. It integrates dedicated hardware blocks for ISO 7816-3 smart card protocol handling (including automatic card type detection and movement sensing) and USB 2.0 full-speed (12 Mbps) CCID-class device communication with customer-specific descriptors.
It embeds firmware supporting T=0/T=1/TWI protocols, SLE4432/42 (S=10), SLE4418/28 (S=9), and 8-pin card handling (C4/C8). Keyboard support covers up to 160 keys (20×8 matrix) with slow-rise/fall timing for EMI control and built-in SPE (Secure Pin Entry).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Smart Card Interface | ISO 7816-3 compliant; supports T=0, T=1, TWI (S=8), SLE4432/42 (S=10), SLE4418/28 (S=9) |
| Card Voltage Support | 1.8 V, 3 V, and 5 V smart cards; auto-detection and switching |
| Card Power Delivery | 60 mA regulated supply; includes short-circuit and thermal protection |
| USB Interface | USB 2.0 full-speed (12 Mbps); CCID class-compliant; WHQL and EMV 2000 certified |
| Keyboard Matrix | Configurable up to 20×8 (160 keys); slow edge rates for EMI reduction |
| Firmware Integration | Preloaded ready-to-use firmware for smart card + keyboard; customer-specific firmware supported |
| Operating Temp | Industrial range: –40°C to +85°C |
Pinout & Package
AT83C22OK104-RDTUM is housed in a 64-pin Very Thin Quad Flat Package (VQFP) with 0.5 mm pitch, measuring 10 mm × 10 mm × 1.0 mm. The package is RoHS-compliant and designed for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, VCCIO | Power Supply Inputs | Dual-supply pins: VCC for core (3.3 V), VCCIO for I/O (3.3 V or 5 V configurable) |
| GND | Ground Reference | Multiple dedicated ground pins for analog/digital isolation and noise reduction |
| USBDP/USBDM | USB Differential Pair | Full-speed USB 2.0 data lines; internal termination and pull-up resistors enabled |
| SCCLK/SCDAT/SCRST | Smart Card Interface Signals | ISO 7816 clock, I/O, and reset outputs; support for active-low reset and bidirectional data |
| KBRx/KBCy | Keyboard Matrix Rows/Columns | Configurable GPIOs for scanning up to 20 rows × 8 columns; programmable slew rate control |
| LED1–LED3 | Status Indicator Outputs | Open-drain drivers for green (ready), red (busy), and three keyboard LEDs |
| SPE_IN/SPE_OUT | Secure Pin Entry Interface | Dedicated pins for tamper-resistant keypad scanning and encrypted key entry path |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CCID Firmware | Eliminates need for custom USB driver development; enables plug-and-play on Windows, Linux, macOS, and Windows CE |
| Auto Card Detection & Power-off | Reduces system power by disabling card supply when no card is inserted or after timeout |
| EMV 2000 & WHQL Certification | Validated for payment terminal deployment; reduces certification effort for end-product OEMs |
| Configurable Keyboard Layout | Supports customer-defined 20×8 matrix without firmware modification; layout defined via configuration EEPROM |
| Secure Pin Entry (SPE) | Hardware-isolated signal path for PIN pad inputs prevents side-channel leakage during cryptographic operations |
Applications
| EMV Payment Keyboards | PKI Authentication Tokens |
|---|---|
Use Scenario: Integrated into desktop or point-of-sale keyboards used by banks and financial institutions for chip-and-PIN transactions. IC Role / Device Role / Timing Role: Smart card interface controller and USB CCID device; handles T=0 protocol timing, card power sequencing, and secure PIN capture. Use Value: Enables pre-certified, drop-in smart card reader functionality with zero driver development and guaranteed EMV 2000 compliance. | Use Scenario: Embedded in enterprise two-factor authentication devices for remote access and digital signing. IC Role / Device Role / Timing Role: Dual-role controller managing both smart card I/O (ISO 7816) and host USB enumeration (CCID class); synchronizes secure key entry with card APDU exchange. Use Value: Provides hardware-enforced separation between PIN input and cryptographic processing, satisfying FIPS 140-2 Level 2 physical security requirements. |
| Healthcare Smart Card Terminals | Government e-ID Readers |
Use Scenario: Used in hospital workstations for patient identity verification and electronic health record access via national health cards. IC Role / Device Role / Timing Role: Smart card interface with multi-voltage support (1.8 V/3 V/5 V); manages card hot-plug detection and auto-negotiated protocol selection. Use Value: Ensures reliable operation across diverse national health card variants without manual voltage or protocol configuration. | Use Scenario: Deployed in kiosks and border control systems for reading national ID cards compliant with ICAO 9303 and ISO/IEC 7816-4. IC Role / Device Role / Timing Role: CCID-compliant USB device providing standardized APDU transport; supports extended APDU and secure messaging channels. Use Value: Delivers interoperability with standard PC/SC middleware and eliminates need for proprietary reader drivers in government IT infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card reader controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon SLE78CLXXF-xxQK | ARM-based secure microcontroller; requires external USB PHY; no integrated keyboard matrix controller | Targeted at standalone readers, not keyboard-integrated designs; lacks native keyboard firmware | Select when higher security certification (Common Criteria EAL5+) is required and keyboard integration is handled separately |
| NXP JCOP401R3-xx | JavaCard OS platform; no USB or keyboard interface; functions as card-side applet host only | Used inside smart cards-not as a reader IC; incompatible role and interface domain | Not a functional alternative; only relevant for card-side application development, not reader hardware design |
Compared with AT83C22OK104-RDTUM, the Infineon SLE78CLXXF offers stronger cryptographic acceleration but demands additional USB and keyboard logic; the NXP JCOP401R3 serves a fundamentally different role as an embedded JavaCard platform-not a reader controller-making it non-substitutable in this application context.
Availability
AT83C22OK104-RDTUM is available at Aetrix Electronics and suitable for EMV payment terminals, PKI token peripherals, healthcare smart card workstations, and government e-ID reader systems requiring stable component supply and long-term industrial temperature support.
Supply support for AT83C22OK104-RDTUM 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) is a U.S.-based semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication solutions.
The AT83C22OK product line was developed as a turnkey smart card reader chipset for USB peripheral integrators, targeting rapid time-to-market in certified financial, healthcare, and identity applications without firmware development overhead.
FAQ
What is the primary function of the AT83C22OK104-RDTUM?
The AT83C22OK104-RDTUM is a single-chip smart card reader controller designed for integration into USB keyboards. It combines ISO 7816 smart card interface logic, USB 2.0 CCID device functionality, and a programmable keyboard matrix controller-all on one die. Its purpose is to enable certified, driverless smart card reading in peripherals like banking keyboards and PKI tokens without requiring custom firmware development. The AT83C22OK104-RDTUM integrates all necessary protocol stacks and protections for industrial deployment.
Does the AT83C22OK104-RDTUM support 1.8V smart cards?
Yes, the AT83C22OK104-RDTUM supports 1.8 V, 3 V, and 5 V smart cards with automatic voltage detection and switching. Its smart card interface includes dedicated regulation circuitry and level-shifting to ensure safe, compliant operation across all three voltage classes per ISO 7816-3. This capability is confirmed in the official Atmel documentation (4306AS–SCR–05/04) and is essential for compatibility with modern low-voltage EMV cards. The AT83C22OK104-RDTUM handles card insertion detection and voltage negotiation autonomously.
Is the AT83C22OK104-RDTUM pin-compatible with other members of the AT83C22OK family?
Yes, all AT83C22OK variants-including AT83C22OK104-RDTUM-are packaged in identical 64-pin VQFP and share the same pinout. Differences between versions (e.g., AT83C22OK101 vs. AT83C22OK104) relate solely to preloaded firmware features and certification scope (e.g., EMV 2000 level, keyboard layout size), not electrical or mechanical interface. Therefore, AT83C22OK104-RDTUM can be substituted on the same PCB footprint where another AT83C22OK variant is used, provided firmware and compliance requirements align. The AT83C22OK104-RDTUM maintains full hardware compatibility within its family.
What certifications does the AT83C22OK104-RDTUM hold?
The AT83C22OK104-RDTUM holds WHQL (Microsoft Windows Hardware Quality Labs) certification, EMV 2000 certification for payment applications, USB 1.1/2.0 compliance, USB CCID class compliance, ISO 7816-3 interface compliance, and HBCI (Home Banking Computer Interface) certification. These are documented in the Atmel preliminary summary (4306AS–SCR–05/04) and verified through Omnikey's CardMan Smart@Key qualification program. The AT83C22OK104-RDTUM leverages these pre-validated certifications to accelerate end-product approval.
Can the AT83C22OK104-RDTUM be used without modifying host software?
Yes, the AT83C22OK104-RDTUM operates as a standard USB CCID class device, enabling plug-and-play functionality on any OS with built-in CCID support-including Windows (98 through 10), Linux, macOS X, and Windows CE. No vendor-specific drivers are needed. Host applications communicate via standard PC/SC APIs. The AT83C22OK104-RDTUM includes preloaded CCID firmware that handles all USB enumeration, APDU transport, and error recovery transparently-eliminating host-side software adaptation for basic smart card read/write operations.
AT83C22OK104-RDTUM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- USB
- Voltage - Supply:
- 3.6V ~ 5.5V
- Supplier Device Package:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
AT83C22OK104-RDTUM FAQ
1.How can I place an order for AT83C22OK104-RDTUM through Aetrix?
Please submit a Request for Quotation (RFQ) for AT83C22OK104-RDTUM 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 AT83C22OK104-RDTUM reliable?
The price and inventory of AT83C22OK104-RDTUM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT83C22OK104-RDTUM is usually 5 days.
3.What payment methods are accepted for AT83C22OK104-RDTUM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT83C22OK104-RDTUM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT83C22OK104-RDTUM?
AT83C22OK104-RDTUM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT83C22OK104-RDTUM 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 AT83C22OK104-RDTUM?
For technical support, including AT83C22OK104-RDTUM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT83C22OK104-RDTUM requirements.
6.How does Aetrix verify that AT83C22OK104-RDTUM is sourced from the original manufacturer or authorized distributors?
All AT83C22OK104-RDTUM 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 AT83C22OK104-RDTUM meets industry standards.
7.What is the process for return or replacement of AT83C22OK104-RDTUM?
All AT83C22OK104-RDTUM units undergo pre-shipment inspection (PSI). If there is an issue with AT83C22OK104-RDTUM, 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 AT83C22OK104-RDTUM part is unused and in its original packaging.
Return procedure for AT83C22OK104-RDTUM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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