AT24C01B-TH-T Atmel, AT24C01B-TH-T Datasheet - Page 3

• Manufacturer Part Number: AT24C01B-TH-T
• Description: IC EEPROM 1KBIT 1MHZ 8TSSOP
• Manufacturer: Atmel

Specifications of AT24C01B-TH-T

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 1K (128 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-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Pin Description
2. Memory Organization
5156E–SEEPR–10/08
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 hard wired for the AT24C01B. As many as eight 1K devices may be addressed on a sin-
gle bus system (device addressing is discussed in detail under the Device Addressing section).
WRITE PROTECT (WP): The AT24C01B has a write protect pin that provides hardware data
protection. The write protect pin allows normal read/write operations when connected to ground
(GND). When the write protect pin is connected to V
and operates as shown in
Table 1-1.
AT24C01B, 1K SERIAL EEPROM: Internally organized with 16 pages of 8 bytes each, the 1K
requires an 7-bit data word address for random word addressing. (See
WP Pin
Status
At V
At GND
CC
Write Protect
Full (1K) Array
Normal Read/Write Operations
Part of the Array Protected
24C01B
Table
1-1.
CC
, the write protection feature is enabled
Figure 8-2 on page
10)
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