TDA8026ETSLASHC2 datasheet(7/61 Pages) NXP

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TDA8026_1

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Product data sheet

Rev. 1.1 — 30 June 2016

7 of 61

NXP Semiconductors

TDA8026

Multiple smart card slot interface IC

7.2 Pin description

Table 4.

Pin description

Symbol

Type[1]

Supply

power

Description

IRQN

VDD(INTF)

microcontroller interrupt; active LOW; open-drain

INTAUXN

VDD(INTF) auxiliary interrupt line input:

auxiliary contact reader front end not connected:

connect INTAUXN pad to supply voltage VDD(INTF)

auxiliary contact reader front end connected: connect

INTAUXN pad to an external 10 k

 pull-up resistor;

active LOW

SDWNN

I[3]

VDD(INTF) shutdown and reset input; active LOW

VDD(INTF)

microcontroller interface supply voltage

SDA

I/O

VDD(INTF) serial data line to and from the I2C-bus master;

open-drain

SCL

VDD(INTF) serial clock line from the I2C-bus master

VDD(INTF) I2C-bus address configuration and selection

SPRES

VDD(INTF) PRES mode[2] configuration and selection

CLKIN1

VDD(INTF) card slot 1 external clock input; connect external clock

(fclk(ext)) to generate the CLK(1) frequency

CLKIN2

VDD(INTF) card slots 2 to 5 external clock input; connect external

clock (fclk(ext)) to generate the CLK(2) to CLK(5)

frequency

GND1

ground connection

I/OUC1

I/O[3]

VDD(INTF) card slot 1 microcontroller data input and output

I/OUC2

I/O[3]

VDD(INTF) card slots 2 to 5 microcontroller data input and output

VCC(1)

card slot 1 card supply; position C1

RST(1)

VCC(1)

card slot 1 card reset output; position C2

CLK(1)

VCC(1)

card slot 1 card clock output; provides fCLK; position C3

C4(1)

I/O[4]

VCC(1)

card slot 1 auxiliary input and output; position C4

C8(1)

I/O[4]

VCC(1)

card slot 1 auxiliary input and output; position C8

I/O(1)

I/O[4]

VCC(1)

card slot 1 card input and output; position C7

GNDC(1)

card slot 1 card ground signal; position C5

PRES(1)

VDD(INTF) card slot 1 card presence input

VCC(2)

card slot 2 card supply; position C1

RST(2)

VCC(2)

card slot 2 card reset; position C2

CLK(2)

VCC(2)

card slot 2 card clock output; provides fCLK; position C3

I/O(2)

I/O[4]

VCC(2)

card slot 2 card input and output; position C7

GNDC(2)

card slot 2 card signal ground; position C5

PRES(2)

VDD(INTF) card slot 2 card presence input

GNDS

card slots 3 to 5 card signal ground; position C5

VCC(3)

card slot 3 card supply; position C1

RST(3)

VCC(3)

card slot 3 card reset output; position C2

CLK(3)

VCC(3)

card slot 3 card clock output; provides fCLK; position C3

I/O(3)

I/O[4]

VCC(3)

card slot 3 card input and output; position C7

TDA8026ET/C2 Datasheet(PDF) 7 Page - NXP Semiconductors

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