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Microchip Technology AT83C21GC144-ICRUL
- Part No.:
- AT83C21GC144-ICRUL
- Manufacturer:
- Microchip Technology
- Category:
- Specialized
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
AT83C21GC144-ICRUL.pdf
- Description:
- IC INTERFACE SPECIALIZED 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,135
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Product details
Overview
AT83C21GC144-ICRUL from Atmel is a smart card interface controller IC compliant with ISO/IEC 7816-1/2/3/4, EMV 2000, and CB standards. It supports single asynchronous T=0/T=1 and synchronous/memory smart cards with programmable card supply (1.8V/3V/5V), UART host interface (1.2–115.2 kbps), and integrated LED drive. It is used in secure payment terminals, ID card readers, and access control systems.
For engineers reviewing the AT83C21GC144-ICRUL datasheet, AT83C21GC144-ICRUL pinout, AT83C21GC144-ICRUL application, or AT83C21GC144-ICRUL equivalent, key selection criteria include ISO 7816 electrical compliance, dual-package support (SSOP24/QFN32), Gemplus Block Protocol (GBP) stack integration, and industrial-grade temperature range (0°C to +70°C).
Technical Context
The AT83C21GC144-ICRUL implements a dedicated smart card interface controller with on-chip voltage regulation for CVCC (card power), DVCC (digital core), and EVCC (UART level-shifter supply). It integrates a hardware UART with software-configurable baud rate and GBP protocol handling firmware.
It features dual smart card I/O paths (CIO/CIO1), independent clock/reset generation (CCLK/CRST and CCLK1/CRST1), card presence detection (CPRES), and ESD-protected card pins (4 kV HBM). The device supports power-down mode with ≤100 µA current and host-triggered wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Smart Card Standards | ISO/IEC 7816-1/2/3/4, EMV 2000, CB - ensures interoperability with global banking, ID, and transit cards. |
| Card Supply Voltage | Programmable 1.8V/3V/5V - enables single design to support legacy and modern contact smart cards. |
| UART Baud Rate | 1.2 kbps to 115.2 kbps - matches host processor flexibility and legacy terminal compatibility. |
| ESD Protection | 4 kV HBM on card pins - meets IEC 61000-4-2 Level 2 for robust field operation. |
| Operating Temperature | 0°C to +70°C - certified for industrial embedded reader applications without extended thermal margin. |
| Power-Down Current | ≤100 µA - enables low-power standby in battery-backed or energy-sensitive terminals. |
| LED Drive Capability | Software-programmable 2/4/10 mA per LED - eliminates external current-limiting resistors for status indication. |
Pinout & Package
AT83C21GC144-ICRUL is supplied in SSOP24 package (Industrial & Green, tape-and-reel). Pin functions are validated per Atmel datasheet 4247DS–SCR–03/07, Figures 2 and Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/CIO | Smart Card I/O | Bidirectional data line for T=0/T=1 protocols; internal pull-up <20 kΩ ensures reliable card handshake. |
| P1.2/CPRES | Card Presence Detection | Digital input sensing mechanical insertion; enables automatic card initialization sequence. |
| P1.4/CCLK | Card Clock Output | Programmable clock generator driving card CLK pin; supports ISO-defined frequency classes. |
| P1.5/CRST | Card Reset Output | Active-low reset signal with <20 kΩ pull-up; meets ISO 7816-3 timing requirements for cold/warm reset. |
| P3.0/RxD | UART Receive Input | Asynchronous serial input referenced to EVCC; compatible with standard 3.3V/5V logic levels. |
| P3.1/TxD | UART Transmit Output | Asynchronous serial output referenced to EVCC; supports full-duplex host communication. |
| P3.6/CCLK1/LED0 | LED Driver / Alternate Clock | Direct LED cathode drive (2/4/10 mA); eliminates external resistor; also serves as secondary clock output. |
| RST | Device Reset Input | Active-low reset with internal pull-up; 64-cycle hold time ensures deterministic initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Gemplus Block Protocol (GBP) Firmware | On-chip implementation of GBP stack reduces host CPU overhead and accelerates development of certified readers. |
| Triple-Supply Architecture | Independent CVCC (card), DVCC (core), EVCC (UART) rails enable precise voltage domain isolation and noise immunity. |
| Integrated DC/DC Pump Control | LI pin drives external coil for charge-pump-based CVCC generation - simplifies 1.8V/3V/5V card voltage switching. |
| Hardware Card Presence Detection | CPRES input provides immediate, glitch-free card insertion event without polling or external circuitry. |
| Programmable LED Drive | Software-selectable 2/4/10 mA sink per LED pin eliminates discrete current-setting components and PCB space. |
Applications
| Payment Terminal Reader | ID Card Authentication System |
|---|---|
Use Scenario: Embedded in countertop or portable POS terminals processing EMV chip-and-PIN transactions. IC Role / Device Role / Timing Role: Smart card interface controller managing ISO 7816 physical layer, T=0 protocol framing, and card power sequencing. Use Value: Enables certified EMV transaction flow with built-in GBP stack and 4 kV ESD protection for public-use durability. | Use Scenario: Integrated into government-issued eID card readers for national ID verification at border checkpoints. IC Role / Device Role / Timing Role: Secure contact interface handling asynchronous T=1 APDU exchange and card voltage negotiation (1.8V/3V/5V). Use Value: Supports multi-standard ID cards (e.g., ICAO-compliant ePassports) with guaranteed ISO 7816-3 timing compliance. |
| Physical Access Control Panel | Secure Healthcare Smart Card Reader |
Use Scenario: Mounted in wall-mounted door controllers validating employee proximity or contact smart cards for facility entry. IC Role / Device Role / Timing Role: Card interface managing card presence detection (CPRES), reset assertion, and secure data exchange via T=0. Use Value: Reduces BOM count with integrated LED drive and eliminates external level shifters via EVCC-referenced UART. | Use Scenario: Used in hospital bedside terminals reading patient health insurance or electronic prescription cards. IC Role / Device Role / Timing Role: Contact smart card controller supporting memory and microprocessor cards under ZKA or Proton protocols. Use Value: Meets healthcare regulatory requirements via industrial temp range (0°C to +70°C) and certified EMV/CB interoperability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar smart card interface controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670 | TPM 2.0 co-processor with integrated smart card interface; requires external secure boot chain. | Targeted at PC/laptop TPM modules, not standalone readers; lacks GBP firmware and LED drive. | Select when security certification (FIPS 140-2 Level 3) and cryptographic acceleration are required over reader simplicity. |
| SC16IS752 | I²C-to-UART bridge with GPIO; no native ISO 7816 support, card power, or CPRES detection. | Requires full custom firmware for smart card protocol; unsuitable for EMV-certified designs. | Select only for non-certified, low-cost prototyping where host handles all ISO 7816 timing and voltage control. |
Compared with SLB9670 and SC16IS752, the AT83C21GC144-ICRUL delivers turnkey ISO 7816 compliance, integrated card power management, and GBP-ready firmware - reducing time-to-certification and eliminating external analog support circuitry.
Availability
AT83C21GC144-ICRUL is available at Aetrix Electronics and suitable for payment terminals, ID authentication systems, and physical access control panels requiring stable component supply and long-term industrial availability.
Supply support for AT83C21GC144-ICRUL 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 semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and secure authentication solutions.
The AT83C21GC product line was designed specifically for cost-effective, standards-compliant smart card reader implementations in industrial and commercial terminals - integrating protocol stack, power control, and ESD-hardened I/O in one IC.
FAQ
What smart card standards does the AT83C21GC144-ICRUL support?
The AT83C21GC144-ICRUL supports ISO/IEC 7816-1, -2, -3, and -4, EMV 2000, CB, Mondex®, Proton, and ZKA standards. It handles both asynchronous T=0 and T=1 protocols, as well as synchronous and memory cards using a command interpreter. This multi-standard support makes the AT83C21GC144-ICRUL suitable for global financial, ID, and transit applications requiring interoperability across legacy and modern card types.
Does the AT83C21GC144-ICRUL support multiple smart card voltages?
Yes, the AT83C21GC144-ICRUL provides programmable card supply voltage outputs of 1.8V, 3V, and 5V via its CVCC pin. This capability is implemented using an internal DC/DC converter controlled through the LI pin and external coil, allowing a single AT83C21GC144-ICRUL design to interface reliably with all common contact smart card types without hardware modification.
What is the role of the Gemplus Block Protocol (GBP) in the AT83C21GC144-ICRUL?
The Gemplus Block Protocol (GBP) is embedded firmware inside the AT83C21GC144-ICRUL that manages bidirectional communication between the host processor and the smart card. It handles low-level framing, error checking, and flow control, enabling the host to issue high-level APDU commands without implementing ISO 7816-4 transport logic. This reduces host firmware complexity and accelerates EMV or eID certification for the AT83C21GC144-ICRUL-based system.
What package options are available for the AT83C21GC144-ICRUL?
The AT83C21GC144-ICRUL is offered exclusively in the SSOP24 package with Industrial & Green specification and tape-and-reel packing. Although the underlying AT83C21GC family includes QFN32 variants (e.g., AT83C21GCxxx-PUTUL), the specific AT83C21GC144-ICRUL ordering code maps only to the 24-pin SSOP package, as confirmed in Atmel's official ordering information table.
How does the AT83C21GC144-ICRUL handle card presence detection and LED indication?
The AT83C21GC144-ICRUL uses the P1.2/CPRES pin for hardware-based card presence detection, providing immediate digital notification of insertion without polling. For visual feedback, it offers integrated LED drive on P3.6/CCLK1/LED0 and P3.7/CRST1/LED1, each programmable to sink 2 mA, 4 mA, or 10 mA - eliminating external current-limiting resistors and simplifying board layout for the AT83C21GC144-ICRUL design.
AT83C21GC144-ICRUL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 24-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- Serial
- Voltage - Supply:
- 2.85V ~ 5.4V
- Supplier Device Package:
- 24-SSOP
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AT83C21GC144-ICRUL FAQ
1.How can I place an order for AT83C21GC144-ICRUL through Aetrix?
Please submit a Request for Quotation (RFQ) for AT83C21GC144-ICRUL 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 AT83C21GC144-ICRUL reliable?
The price and inventory of AT83C21GC144-ICRUL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT83C21GC144-ICRUL is usually 5 days.
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AT83C21GC144-ICRUL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT83C21GC144-ICRUL 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 AT83C21GC144-ICRUL?
For technical support, including AT83C21GC144-ICRUL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT83C21GC144-ICRUL requirements.
6.How does Aetrix verify that AT83C21GC144-ICRUL is sourced from the original manufacturer or authorized distributors?
All AT83C21GC144-ICRUL 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 AT83C21GC144-ICRUL meets industry standards.
7.What is the process for return or replacement of AT83C21GC144-ICRUL?
All AT83C21GC144-ICRUL units undergo pre-shipment inspection (PSI). If there is an issue with AT83C21GC144-ICRUL, 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 AT83C21GC144-ICRUL part is unused and in its original packaging.
Return procedure for AT83C21GC144-ICRUL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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