24AA32A Datasheet, PDF (1/42 Pages) Microchip Technology – 32K 1.8V I 2 C O Serial EEPROM

24AA32A/24LC32A
32K I²C^™ Serial EEPROM
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
24AA32A
1.7-5.5
400 kHz⁽¹⁾
24LC32A 2.5-5.5
400 kHz
Note 1: 100 kHz for VCC <2.5V.
Temp.
Ranges
I
I, E
Features:
• Single Supply with Operation down to 1.7V for
24AA32A devices, 2.5V for 24LC32A devices
• Low-Power CMOS Technology:
- Active current 1 mA, typical
- Standby current 1 A, typical
• 2-Wire Serial Interface, I²C™ Compatible
• Schmitt Trigger Inputs for Noise Suppression
• Output Slope Control to Eliminate Ground Bounce
• 100 kHz and 400 kHz Clock Compatibility
• Page Write Time 5 ms max.
• Self-Timed Erase/Write Cycle
• 32-Byte Page Write Buffer
• Hardware Write-Protect
• ESD Protection > 4,000V
• More than 1 Million Erase/Write Cycles
• Data Retention > 200 Years
• Factory Programming Available
• Packages Include 8-lead PDIP, SOIC, SOIJ,
TSSOP, X-Rotated TSSOP, MSOP, DFN, TDFN,
5-lead SOT-23 and Chip Scale
• Pb-Free and RoHS Compliant
• Temperature Ranges:
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
Package Types
PDIP/MSOP/SOIC/SOIJ/TSSOP
A0 1
8 VCC
X-Rotated TSSOP
(X/ST)
SCL
A1 2
A2 3
VSS 4
7 WP
WP ¹
6 SCL ^{VCC 2}
A0 ³
5 SDA A1 ⁴
8 _SCL ^VSS
7 _SDA
6
5
VSS
A2
SDA
Description:
The Microchip Technology Inc. 24AA32A/24LC32A
(24XX32A*) is a 32 Kbit Electrically Erasable PROM.
The device is organized as a single block of 4K x 8-bit
memory with a 2-wire serial interface. Low-voltage
design permits operation down to 1.7V, with standby
and active currents of only 1 A and 1 mA,
respectively. It has been developed for advanced, low-
power applications such as personal communications
or data acquisition. The 24XX32A also has a page write
capability for up to 32 bytes of data. Functional address
lines allow up to eight devices on the same bus, for up
to 256 Kbits address space. The 24XX32A is available
in the standard 8-pin PDIP, surface mount SOIC, SOIJ,
TSSOP, DFN, TDFN and MSOP packages. The
24XX32A is also available in the 5-lead SOT-23 and
Chip Scale packages.
Block Diagram
A0 A1 A2 WP
HV Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
Page Latches
I/O SCL
SDA
Vcc
VSS
YDEC
Sense Amp.
R/W Control
SOT-23
1
5
2
3
4
DFN/TDFN
CS (Chip Scale)⁽¹⁾
WP _{A0 1}
A1 2
A2 3
VCC ^{VSS 4}
8 VCC VCC 1
2 VSS
7 WP WP
6 SCL ^SCL
3
4
5 SDA
5 SDA
(Top Down View,
Balls Not Visible)
Note 1: Available in I-temp, “AA” only.
*24XX32A is used in this document as a generic part number for the 24AA32A/24LC32A devices.
 2010 Microchip Technology Inc.
DS21713L-page 1