AT24CS128-10PC
器件描述：2-Wire Serial EEPROMs with Permanent Software Write Protect
器件厂商：ATMEL [ATMEL Corporation]
文件大小：207.75KB，共12页
Sponsor by e络盟器件资料摘要：
1
Features
• One-Time Programmable (OTP) Feature
• Low-Voltage and Standard-Voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 1.8 (V
CC
= 1.8V to 3.6V)
• Internally Organized 16,384 x 8 and 32,768 x 8
• 2-Wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V), 400 kHz (2.7V) and 100 kHz (1.8V) Compatibility
• Write Protect Pin for Hardware and Software Data Protection
• 64-Byte Page Write Mode (Partial Page Writes Allowed)
• Self-Timed Write Cycle (5 ms typical)
• High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 40 Years
– ESD Protection: >4000V
• Automotive Grade and Extended Temperature Devices Available
• 8-Pin JEDEC PDIP and 8-Pin JEDEC and EIAJ SOIC Packages
Description
The AT24CS128/256 provides 131,072/262,144 bits of serial electrically erasable and
programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8
bits each. The device’s cascadable feature allows up to 4 devices to share a common
2-wire bus. The device also features a one-time programmable 2048 bit array, which
once enabled, becomes read-only and cannot be overwritten. If not enabled, the OTP
section will function as part of the normal memory array. The device is optimized for
use in many industrial and commercial applications where low power and low voltage
operation are essential. The devices are available in space-saving 8-pin JEDEC PDIP
(AT24CS128/256), 8-pin EIAJ (AT24CS128/256), 8-pin JEDEC SOIC (AT24CS128)
packages. In addition, the entire family is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V
to 5.5V) and 1.8V (1.8V to 3.6V) versions.
Rev. 1152A–09/98
2-Wire Serial
EEPROMs
with Permanent
Software Write
Protect
128K (16,384 x 8)
256K (32,768 x 8)
AT24CS128
AT24CS256
with Permanent
Software Write
Protect
Advanced
Information
Pin Configurations
Pin Name Function
A0 to A2 Address Inputs
SDA Serial Data
SCL Serial Clock Input
WP Write Protect
8-Pin PDIP
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
8-Pin SOIC
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
Features
• One-Time Programmable (OTP) Feature
• Low-Voltage and Standard-Voltage Operation
– 5.0 (V
CC
= 4.5V to 5.5V)
– 2.7 (V
CC
= 2.7V to 5.5V)
– 1.8 (V
CC
= 1.8V to 3.6V)
• Internally Organized 16,384 x 8 and 32,768 x 8
• 2-Wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V), 400 kHz (2.7V) and 100 kHz (1.8V) Compatibility
• Write Protect Pin for Hardware and Software Data Protection
• 64-Byte Page Write Mode (Partial Page Writes Allowed)
• Self-Timed Write Cycle (5 ms typical)
• High Reliability
– Endurance: 100,000 Write Cycles
– Data Retention: 40 Years
– ESD Protection: >4000V
• Automotive Grade and Extended Temperature Devices Available
• 8-Pin JEDEC PDIP and 8-Pin JEDEC and EIAJ SOIC Packages
Description
The AT24CS128/256 provides 131,072/262,144 bits of serial electrically erasable and
programmable read only memory (EEPROM) organized as 16,384/32,768 words of 8
bits each. The device’s cascadable feature allows up to 4 devices to share a common
2-wire bus. The device also features a one-time programmable 2048 bit array, which
once enabled, becomes read-only and cannot be overwritten. If not enabled, the OTP
section will function as part of the normal memory array. The device is optimized for
use in many industrial and commercial applications where low power and low voltage
operation are essential. The devices are available in space-saving 8-pin JEDEC PDIP
(AT24CS128/256), 8-pin EIAJ (AT24CS128/256), 8-pin JEDEC SOIC (AT24CS128)
packages. In addition, the entire family is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V
to 5.5V) and 1.8V (1.8V to 3.6V) versions.
Rev. 1152A–09/98
2-Wire Serial
EEPROMs
with Permanent
Software Write
Protect
128K (16,384 x 8)
256K (32,768 x 8)
AT24CS128
AT24CS256
with Permanent
Software Write
Protect
Advanced
Information
Pin Configurations
Pin Name Function
A0 to A2 Address Inputs
SDA Serial Data
SCL Serial Clock Input
WP Write Protect
8-Pin PDIP
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA
8-Pin SOIC
1
2
3
4
8
7
6
5
A0
A1
A2
GND
VCC
WP
SCL
SDA