IS24C32C
32K-bit
JANUARY2008
2-WIRE SERIAL CMOS EEPROM
FEATURES
DESCRIPTION
• Two-Wire Serial Interface, I2CTM Compatible
– Bi-directional data transfer protocol
• Wide Voltage Operation
The IS24C32C is electrically erasable PROM
devices that use the standard 2-wire interface for
communications. The IS24C32C contains a
memory array of 32K-bits (4K x 8). Each device is
organized into 32 byte pages for page write mode.
– Vcc = 1.8V to 5.5V
• 400 KHz (2.5V) and 1MHz (5.0V) Compatible
• Low Power CMOS Technology
– Standby Current: 1 µA or less (1.8V)
– Read Current: 2 mA or less (5.0V)
– Write Current: 3 mA or less (5.0V)
• Hardware Data Protection
– protects entire array
This EEPROM operates in a wide voltage range of
1.8V to 5.5V to be compatible with most application
voltages. ISSI designed this device family to be a
practical, low-power 2-wire EEPROM solution.
The devices are available in 8-pin PDIP, 8-pin
SOIC, 8-pin TSSOP, 8-pad DFN, and 8-pin MSOP
packages.
• Sequential Read Feature
• Filtered Inputs for Noise Suppression
• Self time write cycle with auto clear
5 ms max.@ 2.5V
The IS24C32C maintains compatibility with the
popular 2-wire bus protocol, so it is easy to use in
applications implementing this bus type. The
simple bus consists of the Serial Clock wire (SCL)
and the Serial Data wire (SDA). Using the bus, a
Master device such as a microcontroller is usually
connected to one or more Slave devices such as
this device. The bit stream over the SDA line
includes a series of bytes, which identifies a
particular Slave device, an instruction, an address
within that Slave device, and a series of data, if
appropriate. The IS24C32C has a Write Protect pin
(WP) to allow blocking of any write instruction
transmitted over the bus.
• Organization:
– 4Kx8 (128 pages of 32 bytes)
• 32 Byte Page Write Buffer
• High Reliability
– Endurance: 1,000,000 Cycles
– Data Retention: 100 Years
• Automotive and Industrial temperature ranges
• 8-pin PDIP, 8-pin SOIC, 8-pin SOP, 8-pin
TSSOP, 8-pad DFN, and 8-pin MSOP packages
• Lead-free Available
Copyright © 2006 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc.
1
Rev. B
1/04/08