X9530 Datasheet, PDF (3/30 Pages) Xicor Inc. – Temperature Compensated Laser Diode Controller

X9530
The EEPROM array is internally organized as 272 x 8
bits with 16-Byte pages, and utilizes Xicor’s proprietary
Direct Write^TM cells, providing a minimum endurance
of 100,000 Page Write cycles and a minimum data
retention of 100 years.
PIN ASSIGNMENTS
TSSOP
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CSP
Pin
A3
B2
C2
B3
E3
C3
D3
E2
E1
D1
C1, D2
B1
A1
A2
Pin
Name
A0
A1
A2
Vcc
WP
SCL
SDA
I1
R1
R2
Vss
VSense
VRef
I2
Pin Description
Device Address Select Pin 0. This pin determines the LSB of the device address
required to communicate using the 2-wire interface. The A0 pin has an on-chip pull-
down resistor.
Device Address Select Pin 1. This pin determines the intermediate bit of the device
address required to communicate using the 2-wire interface. The A1 pin has an on-
chip pull-down resistor.
Device Address Select Pin 2. This pin determines the MSB of the device address
required to communicate using the 2-wire interface. The A2 pin has an on-chip pull-
down resistor.
Supply Voltage.
Write Protect Control Pin. This pin is a CMOS compatible input. When LOW, Write
Protection is enabled preventing any “Write” operation. When HIGH, various areas of
the memory can be protected using the Block Lock bits BL1 and BL0. The WP pin has
an on-chip pull-down resistor, which enables the Write Protection when this pin is left
floating.
Serial Clock. This is a TTL compatible input pin. This input is the 2-wire interface clock
controlling data input and output at the SDA pin.
Serial Data. This pin is the 2-wire interface data into or out of the device. It is TTL
compatible when used as an input, and it is Open Drain when used as an output. This
pin requires an external pull up resistor.
Current Generator 1 Output. This pin sinks or sources current. The magnitude and
direction of the current is fully programmable and adaptive. The resolution is 8 bits.
Current Programming Resistor 1. A resistor between this pin and Vss can set the
maximum output current available at pin I1. If no resistor is used, the maximum current
must be selected using control register bits.
Current Programming Resistor 2. A resistor between this pin and Vss can set the
maximum output current available at pin I2. If no resistor is used, the maximum current
must be selected using control register bits.
Ground.
Sensor Voltage Input. This voltage input may be used to drive the input of the on-
chip A/D converter.
Reference Voltage Input or Output. This pin can be configured as either an Input or
an Output. As an Input, the voltage at this pin is provided by an external source. As
an Output, the voltage at this pin is a buffered output voltage of the on-chip bandgap
reference circuit. In both cases, the voltage at this pin is the reference for the A/D
converter and the two D/A converters.
Current Generator 2 Output. This pin sinks or sources current. The magnitude and
direction of the current is fully programmable and adaptive. The resolution is 8 bits.
REV 3.7 8/26/04
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Characteristics subject to change without notice. 3 of 30