TDA8020HL/C1,118 NXP Semiconductors, TDA8020HL/C1,118 Datasheet - Page 7
![IC SMART CARD INTERFACE 32LQFP](/photos/6/52/65261/568-32-lqfp_sot358-1_sml.jpg)
TDA8020HL/C1,118
Manufacturer Part Number
TDA8020HL/C1,118
Description
IC SMART CARD INTERFACE 32LQFP
Manufacturer
NXP Semiconductors
Type
Interfacer
Datasheet
1.TDA8020HLC2118.pdf
(28 pages)
Specifications of TDA8020HL/C1,118
Voltage - Supply
2.7 V ~ 6.5 V
Mounting Type
Surface Mount
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Drivers/receivers
-
Protocol
-
Other names
568-3523-2
935267381118
TDA8020HLBD-T
935267381118
TDA8020HLBD-T
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TDA8020HL/C1,118
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Philips Semiconductors
FUNCTIONAL DESCRIPTION
Throughout this specification, it is assumed that the reader
is familiar with ISO 7816 terminology.
Supply
The TDA8020HL operates with a supply voltage from
2.7 to 6.5 V. An integrated voltage supervisor ensures that
no spike appears on cards contacts during power-on or off.
The supervisor also initializes the device, and forces an
automatic emergency deactivation of the contacts in the
event of a supply drop-out.
As long as the supply voltage is below the threshold
voltage V
the supply voltage reaches V
charged with a small current source of approximately 2 A.
When the voltage on C
supervisor is no longer active. As long as the supervisor is
active (pin IRQ is LOW), bit SUPL in the status register is
set. When pin IRQ goes HIGH the voltage supervisor
becomes inactive (see Fig.3).
2003 Nov 06
handbook, full pagewidth
Dual IC card interface
th1
, the capacitor C
V th1
V CDEL
V DD
IRQ
V hys1
V th2
V th1
DEL
reaches V
DEL
th1
remains uncharged. When
BUS NOT RESPONDING
and V
th2
hys1
, then the
, then C
t w
Fig.3 Voltage supervisor.
DEL
is
BUS OK
7
status read
after event
Separate supply pins are used for the DC-to-DC converter,
allowing specific decoupling for counteracting the noise
the switching transistors may induce on the supply.
A specific reference supply voltage, V
interface signals CLKIN1, CLKIN2, I/O1uC, I/O2uC,
SAD0, SAD1, SCL, SDA and IRQ, which can be lower
than V
a low voltage supplied device.
Pins SCL, SDA and IRQ are open-drain outputs, and may
be externally pulled up to a voltage higher than V
DD
RESPONDING
(minimum 1.5 V), thus allowing direct control with
BUS NOT
t w
BUS OK
RESPONDING
BUS NOT
TDA8020HL
Product specification
DDI
FCE835
, is used for the
DD
.