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NXP Semiconductors Electronic Components Datasheet

TDA8023 Datasheet

Low power IC card interface

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TDA8023
Low power IC card interface
Rev. 2.0 — 24 June 2016
Product data sheet
1. General description
The TDA8023 is a complete cost-efficient, low-power analog interface for synchronous or
asynchronous smart cards. It can be placed between the card and the microcontroller with
very few external components to perform all supply, protection and control functions.
2. Features and benefits
I2C-bus controlled IC card interface in TSSOP28
Supply voltage from 2.7 V to 6.5 V
Independant supply voltage VDD(INTF) for interface signals with the microcontroller
Shutdown input for very low power consumption when the part is not used
Power reduction modes when the card is active
DC-to-DC converter for VCC generation (capacitive doubler, tripler, or inductive, or
follower automatically selected according to supply voltage and card voltage)
1 specific protected half duplex bidirectional buffered I/O line, with current limitation at
15 mA, maximum frequency 1 MHz
2 auxiliary card I/O lines controlled by I2C-bus (C4 and C8)
VCC regulation: 5 V, 3 V or 1.8 V 8 %, ICC < 55 mA, current spikes of 40 nAs up to
20 MHz, with controlled rise and fall times, filtered overload detection approximately
80 mA, current limitation about 120 mA
Thermal and short-circuit protections 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 VDD(DCDC) drop-out
Enhanced ElectroStatic Discharge (ESD) protection on card side (> 6 kV)
20 MHz clock input
Clock generation for the card up to 10 MHz (CLKIN divided by 1, 2, 4 or 5) with
synchronous frequency changes; stop HIGH or LOW or free running 1 MHz in cards
Low-power mode; current limitation on pin CLK (C3)
RST signal (C2) with current limitation at 20 mA, controlled by an embedded
programmable CLK pulse counter on asynchronous cards or by a register on
synchronous cards
ISO 7816-3, GSM 11.11 and EMVCo 4.3 compatibility
Supply voltage supervisor for spike killing during power-on and emergency
deactivation at power-off: threshold internally fixed or set via an external resistor
bridge; pulse width internally fixed or set via an external capacitor
Card presence input with 10 ms built-in debouncing system
One interrupt signal INT


NXP Semiconductors Electronic Components Datasheet

TDA8023 Datasheet

Low power IC card interface

No Preview Available !

NXP Semiconductors
TDA8023
Low power IC card interface
3. Applications
Banking terminals
Internet terminals
Set-top boxes
Portable IC card readers
4. Quick reference data
Table 1. Quick reference data
VDD = 3.3 V; VDD(INTF) = 1.5 V; fCLKIN = 10 MHz; GND = 0 V; Tamb = 25 C; unless otherwise specified.
Symbol Parameter
Conditions
Min Typ
Supply
VDD
VDD(DCDC)
supply voltage
DC-to-DC converter
supply voltage
on pin VDD
on pin VDDP
2.7 -
2.7 -
VDD(INTF)
IDD
interface supply voltage on pin VDDI
supply current
Shutdown mode
Inactive mode; CLKIN LOW or HIGH
1.5
[1] -
[1] -
-
-
-
Active mode; VCC = 5 V; fCLK = 5 MHz
capacitive; ICC = 5 mA
capacitive; ICC = 55 mA
inductive; ICC = 5 mA
inductive; ICC = 55 mA
Power-down mode; VCC = 5 V; ICC = 100 A;
CLK stopped; CLKIN HIGH or LOW;
capacitive or inductive
[1]
-
-
-
-
[1] -
-
-
-
-
-
Supply voltage for the card: pin VCC[2]
VCC supply voltage
Active mode; 2.7 V < VDD < 6.5 V
5 V card; ICC < 60 mA; VCC = 5 V
3 V card; ICC < 55 mA; VCC = 3 V
1.8 V card; ICC < 35 mA; VCC = 1.8 V
Active mode; AC current pulses with
I < 200 mA, t < 400 ns and f < 20 MHz
[3]
4.75
2.80
1.66
[3]
5
3
1.8
5 V card; current pulses of 40 nAs
4.65 -
3 V card; current pulses of 24 nAs
2.76 -
1.8 V card; current pulses of 15 nAs
1.62 -
Vripple(p-p) peak-to-peak ripple
voltage
on VCC; 20 kHz to 200 MHz
--
ICC supply current
VDD > 2.7 V
5 V card; VCC = 0 V to 5 V
3 V card; VCC = 0 V to 3 V
1.8 V card; VCC = 0 V to 1.8 V
--
--
--
Max Unit
6.5 V
6.5 V
6.5 V
10 A
200 A
15 mA
200 mA
15 mA
150 mA
2 mA
5.25 V
3.15 V
1.94 V
5.35 V
3.24 V
1.98 V
350 mV
55 mA
55 mA
35 mA
TDA8023
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2.0 — 24 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
2 of 33


Part Number TDA8023
Description Low power IC card interface
Maker NXP
Total Page 30 Pages
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