X24640PI datasheet(2/17 Pages) XICOR

2 / 17 page

X24640

Xicor E2PROMs are designed and tested for applica-

tions requiring extended endurance. Inherent data

retention is greater than 100 years.

PIN DESCRIPTIONS

Serial Clock (SCL)

The SCL input is used to clock all data into and out of

the device.

Serial Data (SDA)

SDA is a bidirectional pin used to transfer data into

and out of the device. It is an open drain output and

may be wire-ORed with any number of open drain or

open collector outputs.

An open drain output requires the use of a pull-up

resistor. For selecting typical values, refer to the Pull-

up resistor selection graph at the end of this data

sheet.

Device Select (S0, S1, S2)

The device select inputs (S0, S1, S2) are used to set

the ﬁrst three bits of the 8-bit slave address. This

allows up to eight devices to share a common bus.

These inputs can be static or actively driven. If used

statically they must be tied to VSS or VCC as appro-

priate. If actively driven, they must be driven with

CMOS levels (driven to VCC or VSS).

Write Protect (WP)

The Write Protect input controls the Hardware Write

Protect feature. When held LOW, Hardware Write

Protection is disabled. When this input is held HIGH,

and the WPEN bit in the Write Protect Register is set

HIGH, the Write Protect Register is protected,

preventing changes to the Block Lock Protection and

WPEN bits.

PIN NAMES

7038 FM T01

PIN CONFIGURATION

Symbol

Description

S0, S1, S2

Device Select Inputs

SDA

Serial Data

SCL

Serial Clock

Write Protect

VSS

Ground

VCC

Supply Voltage

No Connect

VCC

SCL

SDA

VSS

X24640

8-Lead PDIP/SOIC

7038 FM 02

* .244”

* .197”

Not to scale

VSS

VCC

SCL

SDA

X24640

0.300"

Max

0.252"

20-Lead TSSOP

* SOIC Measurement

X24640PI Scheda tecnica(PDF) 2 Page - Xicor Inc.

X24640PI Scheda tecnica(HTML) 2 Page - Xicor Inc.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Scheda tecnica Scarica

Link URL