Microchip Technology 24LC32A-I/SN Memory IC 32 K 4 K x 8 24LC32A-I/SN Data Sheet
Product codes
24LC32A-I/SN
2002-2012 Microchip Technology Inc.
DS21713M-page 1
24AA32A/24LC32A
Device Selection Table
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
- Standby current 1
A, typical
• 2-Wire Serial Interface, I
2
C™ 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,
• 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
5-lead SOT-23 and Chip Scale
• Pb-Free and RoHS Compliant
• Temperature Ranges:
• Temperature Ranges:
- Industrial (I):
-40°C to +85°C
- Automotive (E): -40°C to +125°C
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
(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.
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
Package Types
Part
Number
V
CC
Range
Max. Clock
Frequency
Temp.
Ranges
24AA32A
1.7-5.5
400 kHz
(1)
I
24LC32A
2.5-5.5
400 kHz
I, E
Note 1:
100 kHz for V
CC
<2.5V.
HV Generator
EEPROM
Array
Page Latches
YDEC
XDEC
Sense Amp.
R/W Control
I/O
Control
Logic
I/O
Memory
Control
Logic
A0 A1
WP
A2
SCL
SDA
Vcc
V
SS
A0
A1
A2
V
SS
V
CC
WP
SCL
SDA
1
2
3
4
8
7
6
5
PDIP/MSOP/SOIC/SOIJ/TSSOP
DFN/TDFN
A0
A1
A2
V
SS
WP
SCL
SDA
SCL
SDA
V
CC
8
7
6
5
7
6
5
1
2
3
4
3
4
SOT-23
1
2
3
4
5
WP
V
CC
SCL
V
SS
SDA
CS (Chip Scale)
(1)
1
2
3
4
5
V
CC
WP
SDA
SCL
V
SS
(Top Down View,
Balls Not Visible)
Note 1:
Available in I-temp, “AA” only.
X-Rotated TSSOP
WP
V
CC
A0
A1
1
2
3
2
3
4
8
7
7
6
5
SCL
SDA
V
SS
A2
(X/ST)
32K I
2
C
™
Serial EEPROM
*24XX32A is used in this document as a generic part number for the 24AA32A/24LC32A devices.