DS8007 Maxim, DS8007 Datasheet - Page 11

• Manufacturer Part Number: DS8007
• Description: The DS8007 multiprotocol dual smart card interface is a low-cost, dual smart card reader interface supporting all ISO 7816, EMV®, and GSM11-11 requirements
• Manufacturer: Maxim

PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
1
2
3
4
5
6
7
8
9
RSTOUT
I/OAUX
PRESA
PRESB
NAME
GNDA
GNDB
CLKA
CLKB
RSTA
RSTB
CPA1
CPB1
V
V
V
GND
I/OA
C8A
C4A
I/OB
C8B
C4B
V
CCA
CCB
DDA
UP
______________________________________________________________________________________
Multiprotocol Dual Smart Card Interface
Reset Output. This active-high output is provided for resetting external devices. The RSTOUT pin is driven
high until the DELAY pin reaches V
stated so it can externally be pulled down. The SUPL bit is set for each RSTOUT pulse.
Auxiliary I/O. This I/O pin allows connection to an auxiliary smart card interface.
Smart Card A I/O Data Line. This is the I/O data line associated with smart card A. This is also referred to
as the ISO C7 contact.
Smart Card A Auxiliary I/O. This is an auxiliary I/O associated with smart card A. This is also referred to
as the ISO C8 contact. This can be associated with synchronous cards.
Smart Card A Presence Contact. This is the active-high presence contact associated with smart card A.
Smart Card A Auxiliary I/O. This is an auxiliary I/O associated with smart card A. This is also referred to
as the ISO C4 contact. This can be associated with synchronous cards.
Smart Card A Ground. This must be connected to GND.
Smart Card A Clock Output. This is the clock output associated with smart card A. This is also referred to
as the ISO C3 contact.
Smart Card A Supply Voltage. This is the supply voltage output associated with smart card A. This is also
referred to as the ISO C1 contact.
Smart Card A Reset. This is the reset output associated with smart card A. This is also referred to as the
ISO C2 contact.
Smart Card B I/O Data Line. This is the I/O data line associated with smart card B. This is also referred to
as the ISO C7 contact.
Smart Card B Auxiliary I/O. This is an auxiliary I/O associated with smart card B. This is also referred to
as the ISO C8 contact. This can be associated with synchronous cards.
Smart Card B Presence Contact. This is the active-high presence contact associated with smart card B.
Smart Card B Auxiliary I/O. This is an auxiliary I/O associated with smart card B. This is also referred to
as the ISO C4 contact. This can be associated with synchronous cards.
Smart Card B Ground. This must be connected to GND.
Smart Card B Clock Output. This is the clock output associated with smart card B. This is also referred to
as the ISO C3 contact.
Smart Card B Supply Voltage. This is the supply voltage output associated with smart card B. This is also
referred to as the ISO C1 contact.
Smart Card B Reset. This is the reset output associated with smart card B. This is also referred to as the
ISO C2 contact.
Ground
Step-Up Converter Connection. Connect a low-ESR capacitor of 220nF between this pin and ground.
Step-Up Converter Contact 1. Connect a low-ESR capacitor of 220nF between CPA1 and CPA2.
Step-Up Converter Contact 3. Connect a low-ESR capacitor of 220nF between CPB1 and CPB2.
Analog Supply Voltage. Positive analog-supply voltage for the step-up converter; can be higher but not
lower than V
DD.
This pin should be decoupled to AGND with a good quality capacitor.
DRST
. Once the DELAY pin reaches V
FUNCTION
DRST
, the RSTOUT pin is three-
Pin Description
11