24C64_1 ESTEK [Estek Electronics Co. Ltd], 24C64_1 Datasheet - Page 3

• Manufacturer Part Number: 24C64_1
• Description: available in space-saving 8-lead PDIP, 8-lead SOP, and 8-lead TSSOP packages
• Manufacturer: ESTEK [Estek Electronics Co. Ltd]

DEVICE/PAGE ADDRESSES (A2, A1 and A0): The A2, A1 and A0 pins are device address inputs that are hard
wired for the
discussed in detail under the Device Addressing section).
SERIAL DATA (SDA): The SDA pin is bi-directional 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.
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.
WRITE PROTECT (WP): The
Write Protect pin allows normal read/write operations when connected to ground (GND). When the Write Protect pin is
connected to V
¡
data word address for random word addressing.
data word address for random word address
24C32, 32K SERIAL EEPROM: Internally organized with 128 pages of 32 bytes each, the 32K requires an 12-bit
24C64, 64K SERIAL EEPROM: Internally organized with 256 pages of 32 bytes each, the 64K requires a 13-bit
Pin Descriptions
Memory Organization
Table 2: Write Protect
WP Pin Status
At GND
24C32/ 24C64. Eight 32K/64K devices may be addressed on a single bus system (device addressing is
CC
At V
, the write protection feature is enabled and operates as shown in the following Table 2.
CC
24C32/ 24C64 has a Write Protect pin that provides hardware data protection. The
Full (32K) Array
24C32
3
Normal Read / Write Operations
Part of the Array Protected
Full (64K) Array
24C64
BEIJING ESTEK ELECTRONICS CO.,LTD
24C32 / 24C64