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DS8005
Smart Card Interface
Dual SIM Card Interface Multiplexes Access to Two Smart Cards for Lower Power, Board Space, and BOM Cost
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Status
Active: In Production.
Description
The DS8005 dual smart card interface is a low-cost, dual analog front-end for an IC card reader interface that needs to communicate with two smart cards in a
mutually exclusive fashion. The analog interface is designed for use in ISO 7816, EMV®, and B-CAS applications. The device is functionally similar to two DS8024s with external multiplexing to select the active interface, but also includes low power and 1.8V card support. Additionally, the device is designed for applications where the C4/C8 (AUX1/AUX2) contacts are not required on either card interface.
The device is provided in a 28-pin SO package. The pinout is backwards compatible with the DS8313, allowing applications to use the same footprint and
PCB for applications that communicate with either one or two smart cards.
The device is designed to be used with microcontrollers that contain an ISO 7816 UART, or have the bandwidth to run this protocol in software by bit-banging IO ports. If the microcontroller does not have the capability of running the ISO 7816 UART, the DS8007 is the more appropriate product selection.
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Data Sheet
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Key Features
- Analog Interface and Level Shifting for IC Card Communication
- ±8kV (min) ESD (HBM) Protection on Card Interfaces
- Ultra-Low Stop-Mode Current, Less Than 10nA Typical
- Internal IC Card Supply-Voltage Generation
- 5.0V ±5%, 80mA (max)
- 3.0V ±8%, 65mA (max)
- 1.8V ±10%, 30mA (max)
- Automatic Card Activation and Deactivation Controlled by Dedicated Internal Sequencer
- I/O Lines from Host Directly Level Shifted for Smart Card Communication
- Flexible Card Clock Generation, Supporting External Crystal Frequency Divided by 1, 2, 4, or 8
- High-Current, Short-Circuit and High-Temperature Protection
- Low Active-Mode Current
- Internal Multiplexing Allows One ISO 7816 UART Implementation to Control Two Smart Card Sockets
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Applications/Uses
- Access Control
- Financial Terminals
- Pay Television
- Set-Top Box Conditional Access
- Telecommunications
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Key Specifications:
| Smart Card Reader ICs |
| Part Number |
ISO-7816 |
Interface |
Card Supply Voltage
(V) |
EV Kit |
Budgetary Price |
| See Notes |
| DS8005 |
Yes |
Digital I/O |
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Yes |
$1.35 @1k |
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See All Smart Card Reader ICs (21)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Application Circuit
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| DS8005-KIT#
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Active |
KIT;
Land Pattern: Not Available
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0°C to +70°C
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See data sheet
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| DS8005-RJX+
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Active |
TSSOP;28 pin;64.7 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0171 (PDF)
Use pkgcode/variation: U28+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS8005-RRX+
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Active |
SOIC(W);28 pin;192.8 mm²
Outline Drawing:21-0042 (PDF)
Land Pattern: 90-0109 (PDF)
Use pkgcode/variation: W28+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-5257
Rev 0;
2010-05-12
This page last modified: 2011-02-15
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