24AA08 MICROCHIP [Microchip Technology], 24AA08 Datasheet

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24AA08

Manufacturer Part Number
24AA08
Description
4K/8K 1.8V I2C Serial EEPROMs
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet

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FEATURES
• Single supply with operation down to 1.8V
• Low power CMOS technology
• Organized as 2 or 4 blocks of 256 bytes
• 2-wire serial interface bus, I
• Schmitt trigger, filtered inputs for noise suppres-
• Output slope control to eliminate ground bounce
• 100 kHz (1.8V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 16 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• ESD protection > 4,000V
• 1,000,000 ERASE/WRITE cycles guaranteed
• Data retention > 200 years
• 8-pin DIP, 8-lead or 14-lead SOIC packages
• Available for extended temperature ranges
DESCRIPTION
The Microchip Technology Inc. 24AA04/08 is a 4K bit or
8K bit Electrically Erasable PROM. The device is orga-
nized as two or four blocks of 256 x 8-bit memory with
a two wire serial interface. Low voltage design permits
operation down to 1.8 volts with standby and active cur-
rents of only 3 A and 1 mA respectively. The 24AA04/
08 also has a page-write capability for up to 16 bytes of
data. The 24AA04/08 is available in the standard 8-pin
DIP and both 8-lead and 14-lead surface mount SOIC
packages.
I
2
C is a trademark of Philips Corporation.
1996 Microchip Technology Inc.
- 1 mA active current typical
- 10 A standby current typical at 5.5V
- 3 A standby current typical at 1.8V
(2 x 256 x 8) or (4 x 256 x 8)
sion
- Commercial (C):
- Industrial (I):
4K/8K 1.8V I
-40 C to +85 C
0 C to +70 C
2
C
This document was created with FrameMaker 4 0 4
compatible
2
C Serial EEPROMs
PACKAGE TYPES
BLOCK DIAGRAM
14-Lead
SOIC
SDA
8-lead
SOIC
CONTROL
V
V
LOGIC
CC
SS
I/O
DIP
24AA04/08
SCL
V
V
NC
NC
NC
A0
A1
A2
A0
A1
A2
SS
SS
V
A0
A1
A2
SS
WP
CONTROL
MEMORY
LOGIC
1
1
2
3
4
2
3
4
5
6
7
1
2
3
4
XDEC
14
11
13
12
10
8
7
6
5
9
8
8
7
6
5
DS21053E-page 1
HV GENERATOR
PAGE LATCHES
R/W CONTROL
SENSE AMP
V
WP
SCL
SDA
EEPROM
ARRAY
V
WP
SCL
SDA
CC
YDEC
V
NC
SCL
SDA
NC
NC
WP
CC
CC

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24AA08 Summary of contents

Page 1

... DESCRIPTION The Microchip Technology Inc. 24AA04/ bit or 8K bit Electrically Erasable PROM. The device is orga- nized as two or four blocks of 256 x 8-bit memory with a two wire serial interface. Low voltage design permits operation down to 1.8 volts with standby and active cur- rents of only 3 A and 1 mA respectively. The 24AA04/ 08 also has a page-write capability for bytes of data ...

Page 2

ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. V .............. -0.6V to VCC +1.0V SS Storage temperature ..................................... -65˚C to +150˚C Ambient temp. with power applied ................ -65˚C to +125˚C Soldering temperature of ...

Page 3

... T WR Endurance 24AA04 — 24AA08 Note 1: Not 100% tested total capacitance of one bus line in pF transmitter, the device must provide an internal minimum delay time to bridge the undefined region (min- imum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions. ...

Page 4

FUNCTIONAL DESCRIPTION The 24AA04/08 supports a Bi-directional 2-wire bus and data transmission protocol. A device that sends data onto the bus is defined as transmitter, and a device receiving data as receiver. The bus has to be controlled ...

Page 5

... The next three bits of the control byte are the block select bits (B2, B1, B0 don't care for both the 24AA04 and 24AA08 don't care for the 24AA04. They are used by the master device to select which of the two or four 256 word blocks of memory are to be accessed. These bits are in effect the most signifi ...

Page 6

... To provide sequential reads the 24AA04/08 contains an internal address pointer which is incremented by one at the completion of each operation. This address pointer allows the entire memory contents to be serially read during one operation. 7.4 Noise Protection The 24AA04/08 employs a V ...

Page 7

... 8.3 WP This pin must be connected to either V If tied to Vss, normal memory operation is enabled (read/write the entire memory). If tied WRITE operations are inhibited. The CC entire memory will be write-protected. Read operations for 400 are not affected. This feature allows the user to use the 24AA04/ serial ROM when WP is enabled (tied to Vcc) ...

Page 8

NOTES: DS21053E-page 8 1996 Microchip Technology Inc. ...

Page 9

NOTES: 1996 Microchip Technology Inc. 24AA04/08 DS21053E-page 9 ...

Page 10

NOTES: DS21053E-page 10 1996 Microchip Technology Inc. ...

Page 11

... SN = Plastic SOIC (150 mil Body), 8-lead SM = Plastic SOIC (207 mil Body), 8-lead Blank = + - + 24AA04 1.8K Serial EEPROM 2 24AA04T 1.8K Serial EEPROM (Tape and Reel) 2 24AA08 1.8K Serial EEPROM 2 24AA08T 1.8K Serial EEPROM (Tape and Reel) DS21053E-page 11 ...

Page 12

W ORLDWIDE AMERICAS Corporate Office Microchip Technology Inc. 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 602 786-7200 Fax: 602 786-7277 Technical Support: 602 786-7627 Web: http://www.microchip.com Atlanta Microchip Technology Inc. 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 ...

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