73S8009C-32IM/F Maxim Integrated Products, 73S8009C-32IM/F Datasheet - Page 7

• Manufacturer Part Number: 73S8009C-32IM/F
• Description: IC PWR MGMT/SMART CARD INT 32QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73S8009C-32IM/F

• Applications: Smart Card Reader, Writer
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 32-VFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS_8009C_025
Table 1 describes the pin functions for the device.
Rev. 1.5
Pin
Name
Card Interface
I/O
AUX1
AUX2
RST
CLK
PRES
PRES
VCC
GND
Miscellaneous Inputs and Outputs
CLKIN
TEST1
TEST2
Power Supply and Ground
VDD
VPC
VBAT
Pin
(QFN32)
22
21
20
18
16
14
13
19
17
10
30
29
26
25
7
Type
PSO
GND
PSO
PSI
IO
IO
IO
O
O
–
–
I
I
I
Table 1: 73S8009C Pin Definitions
Equivalent
Figure 16
Figure 16
Figure 16
Figure 15
Figure 14
Figure 18
Figure 18
Figure 13
Figure 18
Figure 13
Figure 13
Circuit
–
–
–
Card I/O: Data signal to/from card. Includes a pull-up
resistor to V
AUX1: Auxiliary data signal to/from card. Includes a
pull-up resistor to V
AUX2: Auxiliary data signal to/from card. Includes a
pull-up resistor to V
Card reset: provides reset (RST) signal to card. RST is
the pass through signal on RSTIN. Internal control logic
will hold RST low when card is not activated or VCC is
too low.
Card clock: provides clock signal (CLK) to card. CLK is
the pass through of the signal on pin CLKIN. Internal
control logic will hold CLK low when card is not
activated or VCC is too low.
Card Presence switch: active high indicates card is
present. Should be tied to GND when not used, but it
Includes a high-impedance pull-down current source.
Card Presence switch: active low indicates card is
present. Should be tied to V
Includes a high-impedance pull-up current source.
Card power supply – logically controlled by sequencer,
output of LDO regulator. Requires an external 0.47 µF
low ESR filter capacitor to GND.
Card ground.
Clock signal source for the card clock.
Factory test pin. This pin must be tied to GND in
typical applications.
Factory test pin. This pin must be tied to GND in
typical applications.
System interface supply voltage and supply voltage for
companion controller circuitry. Requires a minimum of
two 0.1 µF capacitors to ground for proper decoupling.
Power supply source for main voltage converter circuit.
A 10 µF and a 0.1 µF ceramic capacitor must be
connected to this pin.
Alternate power source input, typically from two series
cells, V > 4 V.
CC.
CC.
CC.
Description
DD
when not used, but it
73S8009C Data Sheet
7