24C32ASM データシートの表示（PDF） - Microchip Technology
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24C32ASM Datasheet PDF : 12 Pages
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Obsolete Device
Please use 24LC32A.
24C32A
32K 5.0V I2C™ Serial EEPROM
FEATURES
• Voltage operating range: 4.5V to 5.5V
- Maximum write current 3 mA at 5.5V
- Standby current 1 µA typical at 5.0V
• 2-wire serial interface bus, I2C compatible
• 100 kHz and 400 kHz compatibility
• Self-timed ERASE and WRITE cycles
• Power on/off data protection circuitry
• Hardware write protect
• 1,000,000 Erase/Write cycles guaranteed
• 32-byte page or byte write modes available
• Schmitt trigger filtered inputs for noise suppres-
sion
• Output slope control to eliminate ground bounce
• 2 ms typical write cycle time, byte or page
• Up to eight 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 and SOIC packages
• Temperature ranges
- Commercial (C):
0°C to 70°C
- Industrial (I):
-40°C to +85°C
- Automotive (E):
-40°C to +125°C
DESCRIPTION
The Microchip Technology Inc. 24C32A is a 4K x 8
(32K bit) Serial Electrically Erasable PROM. It has
been developed for advanced, low power applications
such as personal communications or data acquisition.
The 24C32A also has a page-write capability of up to
32 bytes of data. The 24C32A is capable of both ran-
dom and sequential reads up to the 32K boundary.
Functional address lines allow up to eight 24C32A
devices on the same bus, for up to 256K bits address
space. Advanced CMOS technology and broad voltage
range make this device ideal for low-power/low-volt-
age, nonvolatile code and data applications. The
24C32A is available in the standard 8-pin plastic DIP
and both 150 mil and 200 mil SOIC packaging.
PACKAGE TYPES
PDIP
A0 1
A1 2
A2 3
Vss 4
SOIC
A0 1
A1 2
A2 3
Vss 4
8 Vcc
7 WP
6 SCL
5 SDA
8
Vcc
7
WP
6
SCL
5
SDA
BLOCK DIAGRAM
A0 A1 A2 WP
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
I/O
SCL
SDA
VCC
VSS
XDEC
EEPROM
ARRAY
PAGE LATCHES
YDEC
SENSE AMP
R/W CONTROL
I2C is a trademark of Philips Corporation.
2004 Microchip Technology Inc.
DS21163E-page 1
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