IS24C16 ISSI [Integrated Silicon Solution, Inc], IS24C16 Datasheet

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IS24C16

Manufacturer Part Number
IS24C16
Description
16,384-BIT SERIAL ELECTRICALLY ERASABLE PROM
Manufacturer
ISSI [Integrated Silicon Solution, Inc]
Datasheet

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IS24C16
FEATURES
• Low power CMOS
• Hardware write protection
• Internally organized as eight banks
• Two-wire serial interface
• Flexible byte write and 16-byte page-write
• High-reliability
• Automatic word address incrementing
• Filtered inputs for noise suppression
• 8-pin PDIP or SOIC packages
This document contains ADVANCE INFORMATION data. 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 1997, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc.
ADVANCE INFORMATION
10/03/97
PIN DESCRIPTIONS
IS24C16
16,384-BIT SERIAL ELECTRICALLY
ERASABLE PROM
A0-A2
SDA
SCL
WC
Vcc
GND
– Active current less than 3.0 mA
– Standby current less than 35 A
– Write control pin
– 256 pages x 8 bytes
— Bidirectional data transfer protocol
modes
– Endurance: 100,000 cycles per byte
– Data retention: 100 years
— Sequential register read
PIN CONFIGURATION
8-Pin DIP and SOIC
GND
A0
A1
A2
Address Inputs (No connection)
Serial Data I/O
Serial Clock Input
Write Control Input
Power
Ground
1
2
3
4
EE001-0C
8
7
6
5
VCC
WC
SCL
SDA
OVERVIEW
The IS24C16 is a low cost, low power, low voltage
serial EEPROM and organized as 2,048 x 8 bits. The
memory is configured as 128 pages of 16 bytes each. It is
fabricated using
nology and operates from a single supply.
The IS24C16 is internally organized as a 256 x 8 memory
bank. The IS24C16 features a serial interface and soft-
ware protocol allowing operation on a simple 2-wire bus.
Included is a bidirectional serial data bus synchronized by
a clock offering flexible byte write and a faster 16-byte
page write. A write protect pin can protect data in the upper
quadrant of memory.
PIN DESCRIPTIONS
Serial Clock (SCL) - The SCL input is used to clock all data
into and out of the device. In the WRITE mode, data must
remain stable when SCL is HIGH. In the READ mode, data
is clocked out on the falling edge of SCL.
Serial Data (SDA) - The SDA pin is a bidirectional pin used
to transfer data into and out of the device. Data may
change only when SCL is LOW. It is an open-drain output,
and may be wire-ORed with any number of open-drain or
open-collector outputs.
A0, A1, and A2: These pins are not connected.
Write Control (
disable any attempt to write to the memory. When HIGH,
the upper half of array is protected against write opera-
tions; when LOW, the write function is normal. The part can
be read independent of the state of
connected this pin will be pulled LOW.
WC
WC
WC
WC
WC
ISSI
) - The Write Control input is used to
’s advanced CMOS EEPROM tech-
ADVANCE INFORMATION
OCTOBER 1997
WC
ISSI
pin. When not
ISSI
®
®
1

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IS24C16 Summary of contents

Page 1

... It is fabricated using nology and operates from a single supply. The IS24C16 is internally organized as a 256 x 8 memory bank. The IS24C16 features a serial interface and soft- ware protocol allowing operation on a simple 2-wire bus. Included is a bidirectional serial data bus synchronized by a clock offering flexible byte write and a faster 16-byte page write ...

Page 2

... IS24C16, this is fixed as 1010. The next three significant address bits (Bit 3 to Bit 1) are address memory bits. One IS24C16 device can be connected on the bus. The last bit Bit 0 defines the write or read operation to be performed. When set to “1”, a READ operation is selected; when set to “ ...

Page 3

... When the memory ad- dress boundry (address 255) is reached, the address counter “rolls over” to address 0, and the IS24C16 contin- ues to output data for each ACKnowledge received. (Refer to Figure 910. Sequential Read Operation Starting with a Random Address READ Diagram ...

Page 4

... IS24C16 SDA SCL Master Transmitter/ Receiver Figure 1. Typical System Bus Configuration SCL Data In Data Out START SCL SDA Figure 3. START and STOP Conditions 4 Slave Slave Transmitter/ Receiver Receiver 1 Figure 2. Output Acknowledge ISSI Vcc Master Master Transmitter/ Transmitter Receiver 8 9 ACKNOWLEDGE Integrated Silicon Solution, Inc. ...

Page 5

... IS24C16 SCL SDA BIT 7 MSB SDA Bus Activity Device R T Address T E SDA A Bus R C Activity Integrated Silicon Solution, Inc. ADVANCE INFORMATION EE001-0C 10/03/97 Data Change Data Stable Data Stable Figure 4. Data Validity Protocol ...

Page 6

... IS24C16 Activity Device R Address T SDA Bus Activity DUMMY WRITE R E Device A Address D SDA A Bus C K Activity R Device A T Address D Data SDA A R Bus Figure 8. Current Access Read 1st, 2nd I A Device ...

Page 7

... IS24C16 ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage S V Voltage on Any Pin P T Temperature Under Bias BIAS T Storage Temperature STG I Output Current OUT Notes: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied ...

Page 8

... Input HIGH Voltage IH V Input LOW Voltage IL I Input Leakage Current LI I Output Leakage Current LO POWER SUPPLY CHARACTERISTICS +70 C for IS24C16 and – +85 C for IS24C16-I, Vcc = 4.5V to 5.5V. A Symbol Parameter I Vcc Operating Current Vcc Operating Current Standby Current ...

Page 9

... IS24C16 AC ELECTRICAL CHARACTERISTICS +70 C for IS24C16 and – +85 C for IS24C16-I, Vcc = 4.5V to 5.5V A Symbol Parameter f SCL Clock Frequency SCL t Noise Suppression Time I t Clock LOW Period LOW t Clock HIGH Period HIGH t Bus Free Time Before New Transmission BUF ...

Page 10

... Package IS24C16-P 300-mil Plastic DIP IS24C16-G Small Outline (JEDEC STD) Order Part Number Package IS24C16-PI 300-mil Plastic DIP IS24C16-GI Small Outline (JEDEC STD) START Condition ISSI Integrated Silicon Solution, Inc. 2231 Lawson Lane Santa Clara, CA 95054 Fax: (408) 588-0806 Toll Free: 1-800-379-4774 e-mail: sales@issiusa ...

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