73s1217f68im Maxim Integrated Products, Inc., 73s1217f68im Datasheet - Page 9

• Manufacturer Part Number: 73s1217f68im
• Description: Bus-powered 80515 System-on-chip With Usb, Iso 7816 / Emv, Pinpad And More
• Manufacturer: Maxim Integrated Products, Inc.

Rev. 1.2
Pin Name
INT3
INT2
SIO
SCLK
PRES
CLK
RST
IO
AUX1
AUX2
VCC
GND
VPC
VBUS
VBAT
VP
LIN
ON_OFF
48
49
45
53
55
57
61
60
59
58
56
65
62
66
63
47
64
54
GND
PSO
PSO
PSI
PSI
PSI
PSI
IO
IO
IO
IO
O
O
O
I
I
I
I
Figure 35
Figure 35
Figure 31
Figure 32
Figure 44
Figure 42
Figure 42
Figure 43
Figure 43
Figure 43
Figure 46
Description
General purpose interrupt input.
General purpose interrupt input.
IO data signal for use with external Smart Card interface
circuit such as 73S73S8010x.
Clock signal for use with external Smart Card interface
circuit.
Smart Card presence. Active high. Note: the pin has a very
weak pull down resistor. In noisy environments, an external
pull down may be desired to insure against a false card
event.
Smart card clock signal.
Smart card Reset signal.
Smart card Data IO signal.
Auxiliary Smart Card IO signal (C4).
Auxiliary Smart Card IO signal (C8).
Smart Card VCC supply voltage output. A 0.47μF capacitor
is required and should be located at the smart card
connector. The capacitor should be a ceramic type with low
ESR.
Smart Card Ground.
Power supply source for main voltage converter circuit. A
10μF and a 0.1μF capacitor are required at the VPC input.
The 10μF capacitor should be a ceramic type with low ESR.
Alternate power source input from USB connector or hub.
V > 4V.
Intermediate output of main converter circuit. Requires an
external 4.7μF low ESR filter capacitor to GND.
Connection to 10μH inductor for internal step up converter.
Note: inductor must be rated for 400 mA maximum peak
current.
Power control pin. Connected to normally open SPST switch
to ground. Closing switch for duration greater than de-
bounce period will turn 73S1217F on. If 73S1217F is on,
closing switch will flag the 73S1217F to go to the off state.
Firmware will control when the power is shut down.
Alternate power source input, typically from two series cells,
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