AT83C21GC_07 ATMEL | Alldatasheet
Document overview
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Technical content
Features
- Smart Card Interface – Compliance with Standards
- ISO/IEC 7816-1, 2, 3 and 4
- EMV 2000
- CB
- Mondex ®, Proton, ZKA, Other: Contact Gemplus ® – Supported Smart Cards
- Number of Smart Cards Supported: 1
- Asynchronous Cards: T=0 and T=1
- Synchronous/Memory Cards Using a Command Interpreter
- EMV or Non EMV Cards
- Electrical Interface
- Transmission Speed: 9.6 Kbps to 115 Kbps
- Card Power Supply: 1.8V/3V/5V
- ESD Protection On Card Pins: 4 KV - Human Body Model
- Card Presence or Insertion Detection
- Short Circuit Current Limitation
- Host Interface – Physical Layer
- Serial Asynchronous Link
- Programmable Transmission Speed From 1,200 bps to 115,200 bps
- Format: 8 bits, No Parity, 1 Stop Bit
- Adjustable Signal Voltage – Protocol
- Gemplus Block Protocol (GBP)
- GBP Interface Library Kit Source Code
- Chip Power Supply – Voltage: V CC - 2.85V to 5.4V – Consumption: 8 mA Typical, 150 mA Max - Smart Card Powered – Power Down Mode
- 100 µA Max Power Down Current
- Power-down/Power-up by Host Command
- Additional Features – Operating Temperature Range: 0° C to +70° C (-40° C to +85° C) – Package: SS0P24, QFN32 – LED Management: The LED is On When the Card is Pow ered On
Description
AT83C21GC is designed to simplify the integration o f smart card interfaces in elec- tronic devices. It manages the electrical interface and communicati on with ISO 7816 –1/2/3/4 com- patible smart cards and memory cards. Figure 1. Basic Architecture of a Smart Card Reader
4247DS–SCR–03/07 AT83C21GC The connection with the host processor is achieved via a serial asynchronous link; the rate can be selected from a range from 1200 to 115,200 bps. The software inside the GemCore chip handles a comm unication protocol with the host system called the Gemplus Block Protocol (GBP). A comple te s et of docume ntation is ava ila ble on the Gem pl us web s ite: http://www.gemplus.com. A GBP Interface Library Kit can be provided, upon r equest. It consists of the source code of the GBP communication layer between the host and GemCor e. It is written in the C language. See the Gemplus developers’ site at www.gemplus.com. En quiries can also be posted to cardreader@atmel.com. For general information on the device, please refer to the AT83C5121 datasheet available on the Atmel web site, www.atmel.com.
4247DS–SCR–03/07 AT83C21GC Ordering information xxx : Firmware version Part Number Temperature Range Package Packing AT83C21GCxxx-ICSIL Industrial SSOP24 Stick AT83C21GCxxx-ICRIL Industrial SSOP24 Tape & Reel AT83C21GCxxx-ICSUL Industrial & Green SSOP24 Stick AT83C21GCxxx-ICRUL Industrial & Green SSOP24 Stick AT83C21GCxxx-PUTUL Industrial & Green QFN32 Tray AT83C21GCxxx-PURUL Industrial & Green QFN32 Tape & Ree l
Figure 3. 32-pin QFN Pinout Table 1. Port Signal Description
P3.2 is a bi-directional I/O port with internal pul l-ups. P3.3 is a bi-directional I/O port with internal pul l-ups. P3.4 is a bi-directional I/O port with internal pul l-ups. programmed by software to 2, 4 or 10 mA (LEDCON reg ister). P3.7 is a bi-directional I/O port with internal pul l-ups. to this pin. If an external oscillator is used, its output is connected to this pin. to this pin. If an external oscillator is used, XTA L2 may be left unconnected. CC is used to power the internal voltage regulators a nd internal I/O’s. current for the pump charge of the DC/DC converter. Table 1. Port Signal Description (Continued)
to an external decoupling capacitor. output of a 3V regulator and must be connected to a n external decoupling capacitor. CVSS is used to sink high shunt currents from the e xternal coil.
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