24AA32_04 Datasheet, PDF (1/14 Pages) Microchip Technology – 32K 1.8V I2C™ Smart Serial™ EEPROM

Obsolete Device
Please use 24AA32A or 24AA65.
24AA32
32K 1.8V I²C^™ Smart Serial^™ EEPROM
FEATURES
• Voltage operating range: 1.8V to 6.0V
- Peak write current 3 mA at 6.0V
- Maximum read current 150 µA at 6.0V
- Standby current 1 µA typical
• Industry standard two-wire bus protocol, I²C
compatible
- Including 100 kHz (1.8V) and 400 kHz (5V)
modes
• Self-timed ERASE and WRITE cycles
• Power on/off data protection circuitry
• Endurance:
- 10,000,000 Erase/Write (E/W) cycles guaran-
teed for High Endurance Block
- 1,000,000 E/W cycles guaranteed for
Standard Endurance Block
• 8 byte page, or byte modes available
• 1 page x 8 line input cache (64 bytes) for fast write
loads
• Schmitt trigger, filtered inputs for noise suppression
• Output slope control to eliminate ground bounce
• 2 ms typical write cycle time, byte or page
• Factory programming (QTP) available
• Up to 8 devices may be connected to the same
bus for up to 256K bits total memory
• Electrostatic discharge protection > 4000V
• Data retention > 200 years
• 8-pin PDIP/SOIC packages
• Temperature ranges
- Commercial (C):
0°C to +70°C
DESCRIPTION
The Microchip Technology Inc. 24AA32 is a 4K x 8
(32K bit) Serial Electrically Erasable PROM capable of
operation across a broad voltage range (1.8V to 6.0V).
This device has been developed for advanced, low
power applications such as personal communications
or data acquisition. The 24AA32 features an input
cache for fast write loads with a capacity of eight 8-byte
pages, or 64 bytes. It also features a fixed 4K bit block
of ultra-high endurance memory for data that changes
frequently. The 24AA32 is capable of both random and
sequential reads up to the 32K boundary. Functional
address lines allow up to eight 24AA32 devices on the
same bus, for up to 256K bits address space.
I²C is a trademark of Philips Corporation.
Smart Serial is a trademark of Microchip Technology Inc.
 2004 Microchip Technology Inc.
PDIP
A0 1
A1 2
A2 3
VSS 4
SOIC
A0
1
A1 ²
A2 ³
VSS
4
8 VCC
7 NC
6 SCL
5 SDA
8
VCC
7 _NC
6 _SCL
5 _SDA
BLOCK DIAGRAM
A0 A1 A2
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
I/O
SCL
SDA
VCC
VSS
XDEC
EEPROM
ARRAY
PAGE LATCHES
CACHE
YDEC
SENSE AMP
R/W CONTROL
Advanced CMOS technology and broad voltage range
make this device ideal for low-power/low voltage, non-
volatile code PACKAGE TYPEsand data applications.
The 24AA32 is available in the standard 8-pin plastic
DIP and 8-pin surface mount SOIC package.
DS21124E-page 1