IS24C04-3 Datasheet PDF - ISSI
| Part Number | IS24C04-3 | |
| Description | 2-WIRE SERIAL CMOS EEPROM | |
| Manufacturers | ISSI | |
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IS24C01-2 IS24C01-3
IS24C02-2 IS24C02-3 IS24C04-2 IS24C04-3
ISSIIS24C08-2 IS24C08-3 IS24C16-2 IS24C16-3
®
1K-bit/2K-bit/4K-bit/8K-bit/16K-bit
2-WIRE SERIAL CMOS EEPROM
SEPTEMBER 2001
FEATURES
• Low Power CMOS Technology
-- Standby Current less than 8 µA (5.5V)
-- Read Current (typical) less than 1 mA (5.5V)
-- Write Current (typical) less than 3 mA (5.5V)
• Low Voltage Operation
-- IS24C01-2, IS24C02-2, IS24C04-2
IS24C08-2 & IS24C16-2: Vcc = 1.8V to 5.5V
-- IS24C01-3, IS24C02-3, IS24C04-3,
IS24C08-3 & IS24C16-3: Vcc = 2.5V to 5.5V
• 100 KHz (1.8V) and 400 KHz (5V) Compatibility
• Hardware Data Protection
-- Write Protect Pin
• Sequential Read Feature
• Filtered Inputs for Noise Suppression
• 8-pin PDIP and 8-pin SOIC packages
• 8-pin TSSOP (1K,2K & 8K only)
• 8-pin MSOP (1K,2K only)
• Self time write cycle with auto clear
-- 5 ms @ 2.5V
• Organization:
-- IS24C01-2 and IS24C01-3: 128x8
(one block of 128 bytes)
-- IS24C02-2 and IS24C02-3: 256x8
(one block of 256 bytes)
-- IS24C04-2 and IS24C04-3: 512x8
(two blocks of 256 bytes)
-- IS24C08-2 and IS24C08-3: 1024x8
(four blocks of 256 bytes)
-- IS24C16-2 and IS24C16-3: 2048x8
(eight blocks of 256 bytes)
• Page Write Buffer
• Two-Wire Serial Interface
-- Bi-directional data transfer protocol
• High Reliability
-- Endurance: 1,000,000 Cycles
-- Data Retention: 100 Years
• Commercial and Industrial temperature ranges
PRODUCT OFFERING OVERVIEW
Part No
IS24C01-2
IS24C01-3
IS24C02-2
IS24C02-3
IS24C04-2
IS24C04-3
IS24C08-2
IS24C08-3
IS24C16-2
IS24C16-3
Voltage
1.8V-5.5V
2.5V-5.5V
1.8V-5.5V
2.5V-5.5V
1.8V-5.5V
2.5V-5.5V
1.8V-5.5V
2.5V-5.5V
1.8V-5.5V
2.5V-5.5V
Speed
100 KHz
400 KHz
100 KHz
400 KHz
100 KHz
400 KHz
100 KHz
400 KHz
100 KHz
400 KHz
Standby ICC
< 4 µA
< 8 µA
< 4 µA
< 8 µA
< 4 µA
< 8 µA
< 4 µA
< 8 µA
< 4 µA
< 8 µA
Read ICC
1 mA
1 mA
1 mA
1 mA
1 mA
1 mA
1 mA
1 mA
1 mA
1 mA
Write ICC
3 mA
3 mA
3 mA
3 mA
3 mA
3 mA
3 mA
3 mA
3 mA
3 mA
Temperature
C,I
C,I
C,I
C,I
C,I
C,I
C,I
C,I
C,I
C,I
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any
errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. C
09/01/2001
1
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IS24C01-2 IS24C01-3
IS24C02-2 IS24C02-3 IS24C04-2 IS24C04-3
IS24C08-2 IS24C08-3 IS24C16-2 IS24C16-3
ISSI ®
Page Write
The IS24CXX is capable of page-WRITE (8-byte for
24C01/2 and 16-byte for 24C04/08/16) operation. A page-
WRITE is initiated in the same manner as a byte write, but
instead of terminating the internal write cycle after the first
data word is transferred, the master device can transmit
up to N more bytes (N=7 for 24C01/2 and N=15 for 24C04/
08/16). After the receipt of each data word, the IS24CXX
responds immediately with an ACKnowledge on SDA line,
and the three lower (24C01/24C02) or four lower (24C04/
24C08/24C16) order data word address bits are internally
incremented by one, while the higher order bits of the data
word address remain constant. If the master device
should transmit more than N+1 (N=7 for 24C01/2 and
N=15 for 24C04/08/16) words, prior to issuing the STOP
condition, the address counter will “roll over,” and the
previously written data will be overwritten. Once all N+1
(N=7 for 24C01/2 and N=15 for 24C04/08/16) bytes are
received and the STOP condition has been sent by the
Master, the internal programming cycle begins. At this
point, all received data is written to the IS24CXX in a
single write cycle. All inputs are disabled until completion
of the internal WRITE cycle.
Acknowledge Polling
The disabling of the inputs can be used to take advantage
of the typical write cycle time. Once the stop condition is
issued to indicate the end of the host's write operation, the
IS24CXX initiates the internal write cycle. ACK polling can
be initiated immediately. This involves issuing the start
condition followed by the slave address for a write operation.
If the IS24CXX is still busy with the write operation, no ACK
will be returned. If the IS24CXX has completed the write
operation, an ACK will be returned and the host can then
proceed with the next read or write operation.
READ OPERATION
READ operations are initiated in the same manner as
WRITE operations, except that the read/write bit of the
slave address is set to “1”. There are three READ operation
options: current address read, random address read and
sequential read.
Current Address Read
The IS24CXX contains an internal address counter which
maintains the address of the last byte accessed,
incremented by one. For example, if the previous operation
is either a read or write operation addressed to the
address location n, the internal address counter would
increment to address location n+1. When the IS24CXX
receives the Device Addressing Byte with a READ
operation (read/write bit set to “1”), it will respond an
ACKnowledge and transmit the 8-bit data word stored at
address location n+1. The master will not acknowledge
the transfer but does generate a STOP condition and the
IS24CXX discontinues transmission. If 'n' is the last byte
of the memory, then the data from location '0' will be
transmitted. (Refer to Current Address Read Diagram.)
Random Access Read
Selective READ operations allow the Master device to
select at random any memory location for a READ operation.
The Master device first performs a 'dummy' write operation
by sending the START condition, slave address and word
address of the location it wishes to read. After the IS24CXX
acknowledge the word address, the Master device resends
the START condition and the slave address, this time with
the R/W bit set to one. The IS24CXX then responds with
its acknowledge and sends the data requested. The master
device does not send an acknowledge but will generate a
STOP condition. (Refer to Random Address Read
Diagram.)
Sequential Read
Sequential Reads can be initiated as either a Current
Address Read or Random Address Read. After the
IS24CXX sends initial byte sequence, the master device
now responds with an ACKnowledge indicating it requires
additional data from the IS24CXX. The IS24CXX continues
to output data for each ACKnowledge received. The master
device terminates the sequential READ operation by pulling
SDA HIGH (no ACKnowledge) indicating the last data
word to be read, followed by a STOP condition.
The data output is sequential, with the data from
address n followed by the data from address n+1, ... etc.
The address counter increments by one automatically,
allowing the entire memory contents to be serially read
during sequential read operation. When the memory
address boundary (127 for IS24C01-2 and IS24C01-3; 255
for IS24C02-2 and IS24C02-3; 511 for IS24C04-2 and
IS24C02-3; 1023 for IS24C08-2 and IS24C08-3; 2047 for
IS24C16-2 and IS24C16-3) is reached, the address counter
“rolls over” to address 0, and the IS24CXX-2 continues to
output data for each ACKnowledge received. (Refer to
Sequential Read Operation Starting with a Random Address
READ Diagram.)
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. C
09/01/2001
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IS24C04-3 electronic component. |
| Information | Total 13 Pages | |
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