DS8005-RRX+ Maxim Integrated Products, DS8005-RRX+ Datasheet - Page 15

• Manufacturer Part Number: DS8005-RRX+
• Description: SMART CARD AFE DUAL 28SOIC
• Manufacturer: Maxim Integrated Products

Specifications of DS8005-RRX+

• Number Of Channels: 2
• Power (watts): 700mW
• Voltage - Supply, Digital: 2.7 V ~ 6 V
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: DS8005-KIT# - EVALUATION KIT FOR DS8005
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Bits: -
• Voltage - Supply, Analog: -
• Other names: 90-8005+RRX

A low-power state, stop mode, can be entered by forc-
ing the CMDVCC, 5V/3V, and 1_8V input pins to a
logic-high state. Stop mode can only be entered when
the smart card interface is inactive. In stop mode, all
internal analog circuits are disabled. The OFF_ pin fol-
lows the status of the PRES_ pin. To exit stop mode,
change the state of one or more of the three control
Figure 8. Stop-Mode Sequence
STOP MODE
Stop Mode (Low-Power Mode)
CMDVCC
PRES_
5V/3V
1_8V
OFF_
V
CC_
DEACTIVATE INTERFACE
______________________________________________________________________________________
PRES IN STOP MODE
OFF_ FOLLOWS
STOP MODE
ACTIVATE
pins to a logic-low. An internal 220µs (typ) power-up
delay and the 8ms PRES_ debounce delay are in effect
and OFF_ is asserted to allow the internal circuitry to
stabilize. This prevents smart card access from occur-
ring after leaving stop mode. Figure 8 shows the control
sequence for entering and exiting stop mode. Note that
an in-progress deactivation sequence always finishes
before the device enters low-power stop mode.
220μs DELAY
DEACTIVATE
STOP MODE
Smart Card Interface
OFF_ ASSERTED TO
WAIT FOR DELAY
8ms DEBOUNCE
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