SMARTCARD INTERFACE. ST8024 Datasheet


ST8024 INTERFACE. Datasheet pdf. Equivalent


Part Number

ST8024

Description

SMARTCARD INTERFACE

Manufacture

STMicroelectronics

Total Page 30 Pages
Datasheet
Download ST8024 Datasheet


ST8024
ST8024
Smartcard interface
Features
Designed to be compatible with the NDS
conditional access system
IC card interface
3 or 5 V supply for the IC (VDD and GND)
Three specifically protected half-duplex bi-
directional buffered I/O lines to card contacts
C4, C7 and C8
DC-DC converter for VCC generation
separately powered from a 5 V ± 20% supply
(VDDP and PGND)
3 or 5 V ± 5 % 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 nA 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
SO-28
TSSOP28
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)
Built-in debounce on card presence contacts
One multiplexed status signal off
Description
The ST8024 is a complete low cost analog
interface for asynchronous 3 V and 5 V smart
cards. It can be placed between the card and the
microcontroller with few external components to
perform all supply protection and control
functions. ST8024 is a direct replacement of
ST8004.
Main applications are: smartcard readers for set-
top-box, IC card readers for banking,
identification, pay TV.
Table 1. Device summary
Order codes
Temperature range
ST8024CDR
- 25 to 85 °C
ST8024CTR
- 25 to 85 °C
March 2009
Packages
SO-28 (tape and reel)
TSSOP28 (tape and reel)
Rev 8
Packaging
1000 parts per reel
2500 parts per reel
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www.st.com
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ST8024
Contents
Contents
ST8024
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 Voltage supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.1 Without external divider on pin PORADJ . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2.2 With an external divider on pin PORADJ . . . . . . . . . . . . . . . . . . . . . . . . 17
5.2.3 Application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.3 Clock circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 I/O transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Inactive mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.6 Activation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.7 Active mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.8 Deactivation sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.9 VCC generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.10 Fault detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
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Features ST8024 Smartcard interface Features Designed to be compatible with the ND S conditional access system ■ IC card interface ■ 3 or 5 V supply for the IC (VDD and GND) ■ Three specifically protected half-duplex bi- directional buffered I/O lines to card contacts C4, C7 and C8 ■ DC-DC converter for VCC generation separately powered from a 5 V ± 20% supply (VDDP and PGND) ■ 3 o r 5 V ± 5 % regulated card supply volt age (VCC) with appropriate decoupling h as the following capabilities: – ICC < 80 mA at VDDP = 4 to 6.5 V – Handle s current spikes of 40 nA up to 20 MHz – Controls rise and fall times – Fi ltered overload detection at approximat ely 120 mA ■ Thermal and short-circui t protection on all card contacts ■ A utomatic activation and deactivation se quences; initiated by software or by ha rdware in the event of a short-circuit, card take-off, overheating, VDD or VDD P drop-out ■ Enhanced ESD protection on card side (> 6 kV) ■ 26 MHz integrated crystal oscillator ■ Clock generation for cards u.
Keywords ST8024, datasheet, pdf, STMicroelectronics, SMARTCARD, INTERFACE, T8024, 8024, 024, ST802, ST80, ST8, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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