73S8010R-IM/F1 Maxim Integrated, 73S8010R-IM/F1 Datasheet - Page 6

• Manufacturer Part Number: 73S8010R-IM/F1
• Description: I2C Interface IC
• Manufacturer: Maxim Integrated

Specifications of 73S8010R-IM/F1

• Rohs: yes

73S8010R Data Sheet
Table 1 describes the pin functions for the device.
6
Pin
Name
Card Interface
I/O
AUX1
AUX2
RST
CLK
PRES
VCC
GND
Miscellaneous Inputs and Outputs
XTALIN
XTALOUT
VDDF_ADJ
NC
Power Supply and Ground
VDD
VPC
GND
GND
GND
(SO28)
7, 8, 9
5, 22
Pin
11
13
12
16
15
10
17
14
24
25
18
21
14
6
4
(QFN32)
16,25,32
4,5,6,9,
2,21
Pin
11
10
14
13
15
12
23
24
17
20
12
8
7
3
1
Table 1: 73S8010R Pin Definitions
Type
GND
GND
GND
GND
PSO
IO
IO
IO
O
O
O
–
I
I
I
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.
Card clock: provides clock signal (CLK) to card. The
crystal oscillator frequency and CLKSEL bits in the
control register determine the rate of this clock.
Card Presence switch: active high indicates card is
present. Includes a pull-down resistor.
Card power supply – logically controlled by the
sequencer, output of LDO regulator. Requires an
external filter capacitor to GND.
Card ground.
Crystal oscillator input: can be connected to crystal or
driven as a source for the card clock.
Crystal oscillator output: connected to crystal. Left
open if XTALIN is being used as an external clock
input.
V
to overwrite a higher VDDF value (that controls
deactivation of the card). Must be left open if unused.
Non-connected pin.
System interface supply voltage and supply voltage
for internal circuitry.
LDO regulator power supply source.
LDO regulator ground.
Smart card I/O ground.
Digital ground.
DD
threshold adjustment input: this pin can be used
CC.
CC.
CC.
Description
DS_8010R_022
Rev. 1.6