DataSheet.es    


PDF TDA8037 Data sheet ( Hoja de datos )

Número de pieza TDA8037
Descripción Low power 3V smart card interface
Fabricantes NXP Semiconductors 
Logotipo NXP Semiconductors Logotipo



Hay una vista previa y un enlace de descarga de TDA8037 (archivo pdf) en la parte inferior de esta página.


Total 29 Páginas

No Preview Available ! TDA8037 Hoja de datos, Descripción, Manual

TDA8037
Low power 3V smart card interface
Rev. 1.1 — 17 November 2014
Product data sheet
1. General description
The TDA8037 is the cost efficient successor of the established integrated contact smart
card reader IC TDA8035. It offers a high level of security for the card performing current
limitation, short circuit detection, ESD protection as well as supply supervision. Operating
in 3 V supply domain, the current consumption during the shutdown mode of the contact
reader is very low. It is therefore the ideal component for a power efficient contact reader.
2. Features and benefits
2.1 Protection of the contact smart card
Thermal and short-circuit protection on all card contacts
VCC regulation:
3 V 5 % on 2 220 nF multilayer ceramic capacitors with low ESR
Current spikes of 40 nA up to 20 MHz, with controlled rise and fall times, filtered
overload detection approximately 120 mA
Automatic activation and deactivation sequences initiated by software or by hardware
in the event of a short-circuit, card take-off, overheating, VDDhost, VREG and VDD
dropping
Enhanced card-side ElectroStatic Discharge (ESD) protection of (> 8 kV)
Supply supervisor for killing spikes during power on and off:
threshold internally fixed
externally by a resistor bridge (with SO28 package only)
2.2 Easy integration into your contact reader
SW compatible to TDA8024, TDA8034 and TDA8035
3 V smart card supply
Three protected half-duplex bidirectional buffered I/O lines (C4, C7 and C8)
External clock input up to 20 MHz
Card clock generation up to 20 MHz using pin CLKDIV with synchronous frequency
changes of fCLKIN, fCLKIN/2 (with SO28 package only)
Non-inverted control of pin RST using pin RSTIN
Built-in debouncing on card presence contact
Multiplexed status signal using pin OFFN
Chip Select digital input for parallel operation of several TDA8037 ICs (with SO28
package only)

1 page




TDA8037 pdf
NXP Semiconductors
TDA8037
Low power 3V smart card interface
7.3 Pin description
Table 3. Pin description
Symbol
Pin Pin
SO28 TSSOP16
AUX1UC
27 1
Supply
VDD
AUX2UC
28 2
VDD
VDD
PRESN
63
94
VDD
VDD
I/O 11 5
AUX2
12 6
AUX1
13 7
GND
CLK
RST
VCC
14 8
15 9
16 10
17 11
CMDVCCN
RSTIN
OFFN
19
20
23
12
13
14
CLKIN
I/OUC
CLKDIV
TEST
PORADJ
24 15
26 16
1 nc
4 nc
18 nc
CS 21 nc
VCC
VCC
VCC
-
VCC
VCC
VCC
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
Type Description
I/O
I/O
supply
I
I/O
I/O
I/O
supply
O
O
O
I
I
O
I
I/O
I
I
I
I
auxiliary data line to/from the host (internal 10 k pull-up resistor
to VDD)
auxiliary data line to/from the host (internal 10 k pull-up resistor
to VDD)
supply voltage
card presence contact input (active LOW); if PRESN is true, then
the card is considered as present. A debouncing feature of
4.05 ms typ. is built in.
data line to/from the card (C7)(internal 10 k pull up resistor to
VCC)
auxiliary data line to/from the card (C8) (internal 10 k pull up
resistor to VCC)
auxiliary data line to/from the card (C4) (internal 10 k pull up
resistor to VCC)
ground
clock to the card (C3)
card reset (C2)
supply for the card (C1) (decouple to GND with 2x 220 nF
capacitors with ESR<100 m).
start activation sequence input from the host (active LOW)
card reset input from the host (active HIGH)
NMOS interrupt to the host (active LOW) with 10 k internal
pull-up resistor to VDD (see fault detection)
external clock
host data I/O line (internal 10k pull-up resistor to VDD)
control for choosing CLK frequency
test mode
input for VDDhost supervisor. PORADJ threshold can be changed
with an external R bridge.
chip select input from the host (active High)
TDA8037
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 17 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
5 of 29

5 Page





TDA8037 arduino
NXP Semiconductors
TDA8037
Low power 3V smart card interface
8.10 Fault detection
The circuit monitors the following fault conditions:
short-circuit or high current on VCC
Card removal during transaction
VDD, VREG or VDDhost dropping
overheating.
There are two different cases (see Figure 8 on page 12):
1. CMDVCCN High: (outside a card session) then, if the card is not in the reader, OFFN
is Low. It is High when the card is in the reader. The supply supervisor detects a
supply voltage drop on VDD. It generates an internal power-on reset pulse, but does
not act upon OFFN. The card is not powered-up, so no short-circuit or overheating is
detected.
2. CMDVCCN Low: (within a card session) then, OFFN falls Low in any of the
aforementioned cases. As soon as the fault is detected, an emergency deactivation is
automatically performed. When the system controller sets CMDVCCN back to High, it
may sense OFFN again after complete deactivation sequence. It does it to distinguish
between a hardware problem or a card extraction. If the card is still present, OFFN
then returns High.
A bounce may occur on PRESN signal during card insertion or withdrawal. It depends on
the type of card presence switch within the connector (normally close or normally open),
and on the mechanical characteristics of the switch. To counter the bounce, a debounce
feature of approximately 4.05 ms (tdeb = 1280 1/(fosc(int)_Low) is integrated in the device.
When the card is inserted, OFFN goes High only at the end of the debounce time (see
Figure 9 on page 12).
When the card is extracted, an automatic deactivation sequence of the card is performed
on the first True/False transition on PRESN, and OFFN goes Low.
TDA8037
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 17 November 2014
© NXP Semiconductors N.V. 2014. All rights reserved.
11 of 29

11 Page







PáginasTotal 29 Páginas
PDF Descargar[ Datasheet TDA8037.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
TDA8030USB smart card reader (OTP or ROM)NXP Semiconductors
NXP Semiconductors
TDA8031USB smart card reader (OTP or ROM)NXP Semiconductors
NXP Semiconductors
TDA8034ATSmart Card InterfaceNXP Semiconductors
NXP Semiconductors
TDA8034HNSmart Card InterfaceNXP Semiconductors
NXP Semiconductors

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar