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PDF AT34C02-10TI-1.8 Data sheet ( Hoja de datos )
| Número de pieza | AT34C02-10TI-1.8 | |
| Descripción | 2-Wire Serial EEPROM with Permanent Software Write Protect | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Permanent Software Write Protection for the First-Half of the Array
– Software Procedure to Verify Write Protect Status
• Hardware Write Protection for the Entire Array
• Low Voltage and Standard Voltage Operation
– 5.0 (VCC = 4.5V to 5.5V)
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
• Internally Organized 256 x 8
• 2-Wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 100 KHz (1.8V and 2.7V) and 400 KHz (5.0V) Compatibility
• 16-Byte Page Write Modes
• Partial Page Writes Are Allowed
• Self-Timed Write Cycle (10 ms max)
• High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3,000V
• Automotive Grade and Extended Temperature Devices Available
• 8-Pin PDIP, 8-Pin JEDEC SOIC and 8-Pin TSSOP Packages
Description
The AT34C02 provides 2048 bits of serial electrically erasable and programmable
read only memory (EEPROM) organized as 256 words of 8 bits each. The first-half of
the device incorporates a software write protection feature while hardware write pro-
tection for the entire array is available via an external pin as well. Once the software
write protection is enabled, by sending a special command to the device, it cannot be
reversed. The hardware write protection is controlled with the WP pin and can be used
to protect the entire array, whether or not the software write protection has been
enabled. This allows the user to protect none, first-half, or all of the array depending
on the application. The device is optimized for use in many industrial and commercial
applications where low power and low voltage operations are essential. The AT34C02
is available in space saving 8-pin PDIP, 8-pin JEDEC SOIC, and 8-pin TSSOP pack-
ages and is accessed via a 2-wire serial interface. In addition, it is available in 5.0V
(4.5V to 5.5V), 2.7V (2.7V to 5.5V), and 1.8V (1.8V to 5.5V) versions.
Pin Configurations
Pin Name
A0 to A2
SDA
SCL
WP
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
8-Pin SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-Pin TSSOP
8-Pin PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
2-Wire Serial
EEPROM
with Permanent
Software Write
Protect
2K (256 x 8)
AT34C02
2-Wire Serial
EEPROM with
Permanent
Software Write
Protec
Rev. 0958D–07/98
1
1 page  
Bus Timing SCL: Serial Clock SDA: Serial Data I/O
AT34C02
Write Cycle Timing SCL: Serial Clock SDA: Serial Data I/O
(1)
Note: 1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write
cycle.
5
5 Page 
Ordering Information
tWR (max)
(ms)
10
ICC (max)
(µA)
3000
ISB (max)
(µA)
18
fMAX
(kHz)
400
3000
18
400
10 1500 4
100
1500
4
100
10 800 3 100
800 3 100
AT34C02
Ordering Code
AT34C02-10PC
AT34C02N-10SC
AT34C02-10TC
AT34C02-10PI
AT34C02N-10SI
AT34C02-10TI
AT34C02-10PC-2.7
AT34C02N-10SC-2.7
AT34C02-10TC-2.7
AT34C02-10PI-2.7
AT34C02N-10SI-2.7
AT34C02-10TI-2.7
AT34C02-10PC-1.8
AT34C02N-10SC-1.8
AT34C02-10TC-1.8
AT34C02-10PI-1.8
AT34C02N-10SI-1.8
AT34C02-10TI-1.8
Package
8P3
8S1
8T
8P3
8S1
8T
8P3
8S1
8T
8P3
8S1
8T
8P3
8S1
8T
8P3
8S1
8T
Operation Range
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
Commercial
(0°C to 70°C)
Industrial
(-40°C to 85°C)
8P3
8S1
8T
Blank
-2.7
-1.8
Package Type
8-Lead, 0.300" Wide, Plastic Dual Inline Package (PDIP)
8-Lead, 0.150" Wide, Plastic Gull Wing Small Outline Package(JEDEC SOIC)
8-Lead, 0.170" Wide, Thin Shrink Small Outline Package (TSSOP)
Options
Standard Operation (4.5V to 5.5V)
Low Voltage (2.7V to 5.5V)
Low Voltage (1.8V to 5.5V)
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AT34C02-10TI-1.8.PDF ] | |
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