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NXP Semiconductors Electronic Components Datasheet

TDA8026 Datasheet

Multiple smart card slot interface

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TDA8026
Multiple smart card slot interface IC
Rev. 1.1 — 30 June 2016
Product data sheet
1. General description
The TDA8026 is a cost-effective, analog interface for addressing multiple smart card slots
in a Point Of Sales (POS) terminal. It can address up to two main cards (synchronous or
asynchronous smart cards supported) and up to four Security Access Modules (SAMs).
Its packaging supports the latest payment terminal security requirements.
2. Features and benefits
I2C-bus controlled IC card interface in a TFBGA64 package
Supply voltage between 2.7 V and 5.5 V
Dedicated microcontroller interface supply voltage (VDD(INTF))
Shutdown mode ensures very low power consumption when the TDA8026 is inactive
Programmable power reduction modes triggered when the card slots are inactive
VCC(n) generation via DC-to-DC converter: two card slots can be fully loaded, the three
others in reduced consumption mode
Two clock input pins: CLKIN1 for card slot 1 and CLKIN2 for card slots 2 to 5
Two transparent I/O lines on microcontroller side, one for card slot 1 and the other for
card slots 2 to 5
Five protected, half-duplex, bidirectional, buffered I/O lines with current limitation at
15 mA and a maximum frequency 1 MHz
Two I2C-bus controlled auxiliary I/O lines
VCC(n) regulation on all card slots at ICC 55 mA:
5 V, 3 V or 1.8 V 5 %
Current spikes of 40 nAs up to 20 MHz for 5 V cards with controlled rise and fall
times
Current limitation of approximately 100 mA
Thermal protection and short-circuit protection on all card contacts
Automatic activation and deactivation sequences initiated by the software or hardware
in the event of a short-circuit, card take-off or voltage drop-out for VDD(INTF), VDD or VUP
Enhanced ElectroStatic Discharge (ESD) protection on the card-side up to 6 kV
20 MHz clock input
Card clock generation up to 20 MHz and dividable by 1, 2, 4 or 5 with synchronous
frequency changes:
Stop, HIGH or LOW
Clock frequency between 1 MHz and 2.2 MHz in card low-power mode
Current limitation on pin CLK(n)


NXP Semiconductors Electronic Components Datasheet

TDA8026 Datasheet

Multiple smart card slot interface

No Preview Available !

NXP Semiconductors
TDA8026
Multiple smart card slot interface IC
RST(n) signal lines with current limitation at 20 mA, controlled by an embedded
programmable clock pulse counter on asynchronous cards or by a register on
synchronous cards
ISO 7816-3 and EMV 4.31 payment systems compatibility
VDD(INTF) supply voltage supervisor ensures correct communication between
microcontroller and circuit; threshold internally fixed or set using an external resistor
bridge
VDD supply voltage supervisor for spike suppression during power-on and emergency
deactivation at power-off; threshold internally fixed
Card presence input with a 17.8 ms (typical) built-in debouncing system on card slots
1 and 2
One interrupt signal (IRQN)
3. Applications
Point Of Sale terminals
Multiple SAM contact readers
4. Quick reference data
Table 1. Quick reference data
VDD = VDD(INTF) = 3.3 V; fclk(ext) = 10 MHz; GND = 0 V; inductor = 10 H; decoupling capacitors on pins VDD and VUP = 10 F;
Tamb = 25 C unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
Supply
VDD
supply voltage
IDD
supply current
on pin VDD; DC-to-DC converter on
on pin VDD; DC-to-DC converter off and
VCC(n) pin = 5 V
shutdown mode
Standby mode
[1] 2.7
-
[1] 5.25 -
5.5 V
5.5 V
-
25
40
A
-
300 450 A
clock-stop mode; all card slots in this mode;
-
3.7 -
mA
fclk(ext) stopped on pins CLK(n); pins CLKIN1
and CLKIN2 either stopped, HIGH-level or
LOW-level
VDD(INTF)
IDD(INTF)
active mode; all VCC(n) pins = 5 V; fclk(ext) on [2] -
pins CLK(n) = 5 MHz; ICC(1) = ICC(2) = 55 mA; [3]
ICC(3) = ICC(4) = ICC(5) = 2 mA
interface supply voltage on pin VDD(INTF)
1.6
interface supply current shutdown mode
-
active mode; all VCC(n) pins = 5 V; fclk(ext) on
-
pins CLK(n) = 5 MHz
210 260 mA
-
3.6 V
10
15
A
35
-
A
1. for C3 version
TDA8026_1
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 30 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
2 of 61


Part Number TDA8026
Description Multiple smart card slot interface
Maker NXP
Total Page 3 Pages
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