IS25C32B Datasheet, PDF (1/15 Pages) Integrated Silicon Solution, Inc – 32K-BIT SPI AUTOMOTIVE EEPROM

IS25C32B
32K-BIT SPI AUTOMOTIVE EEPROM
Advanced Information
SEPTEMBER 2009
FEATURES
• Serial Peripheral Interface (SPI) Compatible
— Supports SPI Modes 0 (0,0) and 3 (1,1)
• Wide Voltage Operation
— Vcc = 2.7V to 3.6V
• Low power CMOS
— Active current: 4 mA (max)
— Standby current: 5 µA (max)
• Block Write Protection
— Protect 1/4, 1/2, or Entire Array
• 32 byte page write mode
— Partial page writes allowed
• 10 MHz Clock Rate (3.6V)
• Self timed write cycles
— 5 ms max @ 2.7V
• High-reliability
— Endurance: 1 million cycles
— Data retention: 100 years
• Temperature: -40^oC to 125^oC
• Packages (8-pin): SOIC/SOP and TSSOP
DESCRIPTION
The IS25C32B is an electrically erasable PROM device
that uses the Serial Peripheral Interface (SPI) for
communications. The IS25C32B is 32Kbit (4096 x 8). It
is offered in a wide operating voltage range of 2.7V to
3.6V to be compatible with most application voltages.
ISSI designed the IS25C32B to be an efficient SPI
EEPROM solution. The devices are packaged in 8-pin
SOIC (JEDEC) and 8-pin TSSOP.
The functional features of the IS25C32B allows them to
be among the most advanced serial non-volatile memo-
ries available. Each device has a Chip-Select (CS) pin,
and a 3-wire interface of Serial Data In (SI), Serial Data
Out (SO), and Serial Clock (SCK). While the 3-wire
interface of the IS25C32B provides for high-speed ac-
cess, a HOLD pin allows the memories to ignore the
interface in a suspended state; later the HOLD pin re-
activates communication without re-initializing the serial
sequence. A Status Register facilitates a flexible write
protection mechanism, and a device-ready bit (RDY).
Copyright © 2008 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 products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for critical medical or surgical
equipment, aerospace systems, or for other applications planned to support or sustain life. It is the customer's obligation to optimize the design in their own products for
the best performance and optimization on the functionality and etc. 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 prior placing orders for
products.
Integrated Silicon Solution, Inc. — www.issi.com
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Advanced Information  Rev.  00B
08/27/09