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TDA8024
Datasheet
General description
The TDA8024 is a complete and cost-efficient analog interface for asynchronous 3 or 5 V smart cards. It can be placed between the card and the microcontroller to perform all supply, protection and control functions. Very few external components are required. The TDA8024AT is a direct replacement for the TDA8004AT.
More information can be obtained from the Philips Internet site (http://www.semiconductors.philips.com) and from ?Application note AN10141?.
Features
- IC card interface
- 3 or 5 V supply for the IC (VDD and GND)
- Three specifically protected half-duplex bidirectional buffered I/O lines to card contacts C4, C7 and C8
- DC/DC converter for VCC generation separately powered from a 5 V +- 20 pct supply (VDDP and PGND)
- 3 or 5 V +- 5 pct regulated card supply voltage ((VCC) with appropriate decoupling has the following capabilities:
- ICC < 80 mA at VDDP = 4 to 6.5 V
- Handles current spikes of 40 nAs up to 20 MHz
- Controls rise and fall times
- Filtered overload detection at approximately 120 mA
- Thermal and short-circuit protection on all card contacts
- Automatic activation and deactivation sequences; initiated by software or by hardware in the event of a short-circuit, card take-off, overheating, VDD or VDDP drop-out
- Enhanced ESD protection on card side (>6 kV)
- 26 MHz integrated crystal oscillator
- Clock generation for cards up to 20 MHz (divided by 1, 2, 4 or 8 through CLKDIV1 and CLKDIV2 signals) with synchronous frequency changes
- Non-inverted control of RST via pin RSTIN
- ISO 7816, GSM11.11 and EMV (payment systems) compatibility
- Supply supervisor for spike-killing during power-on and power-off and Power-on reset (threshold fixed internally or externally by a resistor bridge); not for TDA8024AT
- Built-in debounce on card presence contacts
- One multiplexed status signal OFF.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| TDA8024T/C1 | TDA8024TD-T | 9352 713 42118 | Volume production | SOT136-1
(SO28) | Reel Pack, SMD, 13" | Standard Marking | Not available
| week 4, 2004 |
| TDA8024T/C1 | 9352 713 42518 | Volume production | SOT136-1
(SO28) | Reel Dry Pack, SMD, 13" | Standard Marking | Not available
| week 4, 2004 | |
| TDA8024TT/C1 | TDA8024TT-T | 9352 737 23118 | Volume production | SOT361-1
(TSSOP28) | Reel Pack, SMD, 13" | Standard Marking | TDA8024TT/C1
| week 24, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| TDA8024T/C1 | 9352 713 42118 | not available | ||||||
| TDA8024T/C1 | 9352 713 42518 | not available | ||||||
| TDA8024TT/C1 | 9352 737 23118 | NA | DIGI-KEY CORPORATION | 2,500 | 12/3/2008 | Buy online | Order samples | |
| NA | DIGI-KEY CORPORATION | 4,346 | 12/3/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 48 | 12/3/2008 | Buy online |
Applications
- IC card readers for banking
- Electronic payment
- Identification
- Pay TV.
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Design support
Support Documents
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