X9530 datasheet(3/30 Pages) XICOR

3 / 30 page

X9530

Characteristics subject to change without notice.

3 of 30

REV 3.7 8/26/04

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The EEPROM array is internally organized as 272 x 8

bits with 16-Byte pages, and utilizes Xicor’s proprietary

Direct WriteTM cells, providing a minimum endurance

of 100,000 Page Write cycles and a minimum data

retention of 100 years.

PIN ASSIGNMENTS

TSSOP

CSP

Name

Pin Description

1A3

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.

2B2

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.

3C2

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.

4B3

Vcc

Supply Voltage.

5E3

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.

6C3

SCL

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.

7D3

SDA

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.

8E2

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.

9E1

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.

C1, D2

Vss

Ground.

VSense

Sensor Voltage Input. This voltage input may be used to drive the input of the on-

chip A/D converter.

VRef

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.

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