IS25C32-2/3
IS25C64-2/3
32,768/65,536-BIT SPI SERIAL
ELECTRICALLY ERASABLE PROM
DESCRIPTION
FEATURES
鈥?2.1 MHz Clock Rate
鈥?Low power CMOS
鈥?Active current less than 3.0 mA (5.5V)
鈥?Standby current less than 10 碌A(chǔ) (5.5V)
鈥?Low-voltage Operation
鈥?IS25C64-3 & IS25C32-3 (Vcc = 2.5V to 5.5V)
鈥?IS25C64-2 & IS25C32-2 (Vcc = 1.8V to 5.5V)
鈥?Block Write Protection
鈥?Protect 1/4, 1/2, or Entire Array
鈥?32 byte page write mode
鈥?Serial Peripheral Interface (SPI) Compatible
鈥?Supports SPI Modes 0 (0,0) and 3 (1,1)
鈥?Self timed write cycles (5 ms Typical)
鈥?High-reliability
鈥?Endurance: 1 million cycles per byte
鈥?Data retention: 100 years
鈥?ESD protection >4000V
鈥?Industrial temperature available
鈥?8-pin PDIP or SOIC, and 14-pin TSSOP Packages
ISSI
廬
PRELIMINARY INFORMATION
NOVEMBER 2001
The IS25C64-2 is a 1.8V (1.8V-5.5V) 64K-bit (8192x8)
electrically Erasable PROM, IS25C64-3 is a 2.5V (2.5V-
5.5V) 64K bit (8192x8) Electrically Erasable PROM,
IS25C32-2 is a 1.8V (1.8V-5.5V) 32K-bit (4096x8) Electri-
cally Erasable PROM, IS25C32-3 is a 2.5V (2.5V-5.5V)
32K-bit (4096x8) Electrically Erasable PROM.
The IS25Cxx (IS25C64-2, IS25C64-3, IS25C32-2 and
IS25C32-3) family is a low-cost and low voltage/low power
SPI Serial EEPROM. It is fabricated using ISSI's ad-
vanced CMOS EEPROM technology and provides a low
power and low voltage operation for low power industrial
and commercial application. The IS25Cxx family is
available in 8 pin PDIP, 8 Pin SOIC, and 14 pin TSSOP
packages.
The IS25Cxx is enabled through the Chip Select pin (CS)
and accessed via a 3-wire interface consisting of Serial
Data Input (SI), Serial Data Output (SO), and Serial Clock
(SCK). All programming cycles are completely self-timed,
and no separate ERASE cycle is required before WRITE.
BLOCK WRITE protection is enabled by programming the
status register with one of four configurations of write
protection. Separate program enable and program disable
instructions are provided for additional data protection.
Hardware data protection is provided via the
WP
pin to
protect against inadvertent write attempts to the status
register. The
HOLD
pin can suspend communications
without re-initializing the serial sequence.
PRODUCT OFFERING OVERVIEW
Part No
IS25C64-2
IS25C64-3
IS25C32-2
IS25C32-3
Voltage
1.8V-5.5V
2.5V-5.5V
1.8V-5.5V
2.5V-5.5V
Speed
500 KHz
2.1MHz
500 KHz
2.1MHz
Standby ICC
< 5 碌A(chǔ)
< 10 碌A(chǔ)
< 5 碌A(chǔ)
< 10 碌A(chǔ)
Read ICC
1 mA
1 mA
1 mA
1 mA
Write ICC
3 mA
3 mA
3 mA
3 mA
Temperature
C,I
C,I
C,I
C,I
Copyright 漏 2002 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. 鈥?1-800-379-4774
PRELIMINARY INFORMATION Rev. 00C
06/25/02
1
1
2
3
4
5
6
7
8
9
10
11
12
