Microchip 34LC02 Manual


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Side 1/40
2007-2022
Microchip Technology Inc. and its subsidiaries
DS20002029G-page 1
34AA02/34LC02
Features
Permanent and Resettable Software Write-Protect
for Lower Half of the Array (00h-7Fh)
Single Supply with Operation Down to 1.7V
Low-Power CMOS Technology:
- Read current: 1 mA, typical
- Standby current: 100 nA, typical
Two-Wire Serial Interface Bus, I2C Compatible
Cascadable Up to Eight Devices
Schmitt Trigger Inputs for Noise Suppression
Output Slope Control to Eliminate Ground Bounce
100 kHz and 400 kHz Compatibility
1 MHz Clock for LC Versions
Page Write Time: 5 ms, Maximum
Self-Timed Erase/Write Cycle
16-Byte Page Write Buffer
ESD Protection > 4,000V
Software Write Protection for Lower 128 Bytes
Hardware Write Protection for Entire Array
More than 1 Million Erase/Write Cycles
Data Retention > 200 Years
RoHS Compliant
Available for Extended Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Extended (E): -40°C to +125°C
Automotive AEC-Q100 Qualified
Packages
8-Lead MSOP, 8-Lead PDIP, 8-Lead SOIC,
6-Lead SOT-23, 8-Lead TDFN and 8-Lead
TSSOP
Description
The Microchip Technology Inc. 34XX02( )1 is a 2-Kbit
Electrically Erasable PROM (EEPROM). This device
has two software write-protect features for the lower
half of the array, as well as an external pin that can be
used to write-protect the entire array. This allows the
system designer to protect none, half or all of the array,
depending on the application. The device is organized
as one block of 256 x 8-bit memory with a two-wire
serial interface. Its low-voltage design permits
operation down to 1.7V, with standby and active
currents of only 100 nA and 1 mA, respectively. The
34XX02 also has a page write capability for up to
16 bytes of data.
Package Types
Device Selection Table
Part Number VCC Range Max. Clock Frequency Temp. Ranges Packages
34AA02 1.7V-5.5V 400 kHz( )1I, E MS, P. SN, OT, MNY, ST
34LC02 2.2V-5.5V 1 MHz I, E MS, P. SN, OT, MNY, ST
Note 1: 100 kHz for VCC <1.8V.
Note 1: 34XX02 is used in this document as a
generic part number for the
34AA02/34LC02 devices.
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
MSOP/PDIP/SOIC/TSSOP
A0
A1
A2
V
SS
WP
SCL
SDA
V
CC
SOT-23
6
2
4 SDA
VCC
VSSA0
A1
5
3
1 SCL
TDFN
1
2
3
4
8
7
6
5
2-Kbit I2C Serial EEPROM Software Write-Protect


Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: 34LC02

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