24C04 EEPROM Datasheet

24C04 Datasheet, PDF, Equivalent


Part Number

24C04

Description

Two-Wire Serial EEPROM

Manufacture

ETC

Total Page 15 Pages
Datasheet
Download 24C04 Datasheet


24C04
24C02/24C04
Preliminary datasheet
Features
„ Low-voltage and Standard-voltage Operation
– 1.8 (VCC = 1.8V to 5.5V)
„ Operating Ambient Temperature: -40°C to
+85°C
„ Internally Organized 256 X 8 (2K), 512 X 8
(4K)
„ Two-wire Serial Interface
„ Schmitt Trigger, Filtered Inputs for Noise
Suppression
„ Bidirectional Data Transfer Protocol
„ 1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V)
Two-Wire Serial EEPROM
2K (256 X 8)/4K (512 X 8)
Compatibility
„ Write Protect Pin for Hardware Data Protection
„ 8-byte Page (2K), 16-byte Page (4K) Write
Modes
„ Partial Page Writes Allowed
„ Self-timed Write Cycle (5 ms max)
„ High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
„ 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead
TSSOP Packages
General Description
The 24C02 / 24C04 provides 2048/4096 bits of
serial electrically erasable and programmable
read-only memory (EEPROM) organized as
256/512 words of 8 bits each The device is
optimized for use in many industrial and
commercial applications where low-power and
low-voltage operation are essential. The 24C02 /
24C04 is available in space-saving 8-lead PDIP,
8-lead JEDEC SOIC, and 8-lead TSSOP packages
and is accessed via a Two-wire serial interface. In
addition, the 24C02 / 24C04 is available in 1.8V
(1.8V to 5.5V) version.
Pin Configuration
1/15
MRD

24C04
24C02/24C04
Pin Descriptions
Pin number
1–3
5
6
7
4
8
1
Designation
A0 - A2
SDA
SCL
WP
GND
VCC
NC
Type
I
I/O
&
Open-drain
I
I
P
P
NC
Name and Functions
Address Inputs
DEVICE/PAGE ADDRESSES (A2, A1, A0): The A2, A1 and
A0 pins are device address inputs that are hard wired for the
24C02. eight 2K devices may be addressed on a single bus
system (device addressing is discussed in detail under the
Device Addressing section).
The 24C04 uses the A2 and A1 inputs for hard wire addressing
and a total of four 4K devices may be addressed on a single
bus system. The A0 pin is a no connect.
Serial Data
SERIAL DATA (SDA): The SDA pin is bi-directional for serial
data transfer. This pin is open-drain driven and may be
wire-ORed with any number of other open-drain or open-
collector devices.
Serial Clock Input
SERIAL CLOCK (SCL): The SCL input is used to positive edge
clock data into each EEPROM device and negative edge clock
data out of each device.
Write Protect
WRITE PROTECT (WP): The 24C02/24C04 has a Write
Protect pin that provides hardware data protection. The Write
Protect pin allows normal read/write operations when
connected to ground (GND). When the Write Protect pin is
connected to VCC, the write protection feature is enabled and
operates as shown in the following Table 1.
Ground
Power Supply
No Connect
For 24C04.
Table 1: Write Protect
WP Pin Status:
At VCC
At GND
Part of the Array Protected
24C02
24C04
Full (2K) Array
Full (4K) Array
Normal Read/Write Operations
2/15 MRD


Features 24C02/24C04 Preliminary datasheet Featu res „ Low-voltage and Standard-voltage Operation – 1.8 (VCC = 1.8V to 5.5V) „ Operating Ambient Temperature: -40 C to +85°C „ Internally Organized 25 6 X 8 (2K), 512 X 8 (4K) „ Two-wire Se rial Interface „ Schmitt Trigger, Filt ered Inputs for Noise Suppression „ Bi directional Data Transfer Protocol „ 1 MHz (5V), 400 kHz (1.8V, 2.5V, 2.7V) Two-Wire Serial EEPROM 2K (256 X 8)/4K (512 X 8) Compatibility „ Write Protec t Pin for Hardware Data Protection „ 8 -byte Page (2K), 16-byte Page (4K) Writ e Modes „ Partial Page Writes Allowed „ Self-timed Write Cycle (5 ms max) „ High-reliability – Endurance: 1 Mill ion Write Cycles – Data Retention: 10 0 Years „ 8-lead PDIP, 8-lead JEDEC SO IC and 8-lead TSSOP Packages General D escription The 24C02 / 24C04 provides 2 048/4096 bits of serial electrically er asable and programmable read-only memor y (EEPROM) organized as 256/512 words o f 8 bits each The device is optimized for use in many industrial and commercial appl.
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