AT24C128BN-SH-B Atmel, AT24C128BN-SH-B Datasheet - Page 3
![IC EEPROM 128KBIT 1MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
AT24C128BN-SH-B
Manufacturer Part Number
AT24C128BN-SH-B
Description
IC EEPROM 128KBIT 1MHZ 8SOIC
Manufacturer
Atmel
Datasheet
1.AT24C128BN-SH-B.pdf
(23 pages)
Specifications of AT24C128BN-SH-B
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
128K (16K x 8)
Speed
400kHz, 1MHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Organization
16 K x 8
Interface Type
2-Wire
Maximum Clock Frequency
1 MHz
Access Time
550 ns
Supply Voltage (max)
3.6 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
3 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT24C128BN-SH-B
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
4. Pin Description
5296A–SEEPR–1/08
SERIAL CLOCK (SCL): The SCL input is used to positive-edge clock data into each EEPROM
device and negative-edge clock data out of each device.
SERIAL DATA (SDA): The SDA pin is bidirectional for serial data transfer. This pin is open-
drain driven and may be wire-ORed with any number of other open-drain or open-collector
devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1, and A0 pins are device address inputs
that are hardwired (directly to GND or to Vcc) for compatibility with other AT24Cxx devices.
When the pins are hardwired, as many as eight 128K devices may be addressed on a single bus
system. (Device addressing is discussed in detail under “Device Addressing,”
is selected when a corresponding hardware and software match is true. If these pins are left
floating, the A2, A1, and A0 pins will be internally pulled down to GND. However, due to capaci-
tive coupling that may appear during customer applications, Atmel recommends always
connecting the address pins to a known state. When using a pull-up resistor, Atmel recommends
using 10kΩ or less.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows normal write
operations. When WP is connected directly to Vcc, all write operations to the memory are inhib-
ited. If the pin is left floating, the WP pin will be internally pulled down to GND. However, due to
capacitive coupling that may appear during customer applications, Atmel recommends always
connecting the WP pins to a known state. When using a pull-up resistor, Atmel recommends
using 10kΩ or less.
AT24C128B
page
8.) A device
3