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PDF M24C32 Data sheet ( Hoja de datos )
| Número de pieza | M24C32 | |
| Descripción | 64/32 Kbit Serial IC Bus EEPROM | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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M24128
M24C64 M24C32
128 Kbit, 64 Kbit and 32 Kbit serial I²C bus EEPROM
Feature summary
■ Two-Wire I2C serial interface
Supports 400kHz Protocol
■ Single supply voltages (see Table 1 for root
part numbers):
– 2.5 to 5.5V
– 1.8 to 5.5V
– 1.7 to 5.5V
■ Write Control Input
■ Byte and Page Write
■ Random And Sequential Read modes
■ Self-Timed programming cycle
■ Automatic address incrementing
■ Enhanced ESD/Latch-Up Protection
■ More than 1 Million Write cycles
■ More than 40-year data retention
■ Packages
– ECOPACK® (RoHS compliant)
Table 1. Product list
Reference Root part number Supply voltage
M24128
M24128-BW
M24128-BR
2.5 to 5.5V
1.8 to 5.5V
M24C64-W
2.5 to 5.5V
M24C64
M24C64-R
1.8 to 5.5V
M24C64-F
M24C32-W
1.7 to 5.5V
2.5 to 5.5V
M24C32
M24C32-R
1.8 to 5.5V
M24C32-F
1.7 to 5.5V
PDIP8 (BN)
SO8 (MN)
150 mil width
TSSOP8 (DW)
169 mil width
UFDFPN8 (MB)
2x3mm² (MLP)
October 2006
Rev 9
1/34
www.st.com
1
1 page  
M24128, M24C64, M24C32
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
DIP, SO, TSSOP and UFDFPN connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device select code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maximum RP value versus bus parasitic capacitance (C) for an I2C bus . . . . . . . . . . . . . . 9
I2C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Write mode sequences with WC = 1 (data write inhibited) . . . . . . . . . . . . . . . . . . . . . . . . . 14
Write mode sequences with WC = 0 (data write enabled) . . . . . . . . . . . . . . . . . . . . . . . . . 16
Write cycle polling flowchart using ACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Read mode sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
AC test measurement I/O waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PDIP8 – 8 pin Plastic DIP, 0.25mm lead frame, package outline . . . . . . . . . . . . . . . . . . . . 27
SO8 narrow – 8 lead Plastic Small Outline, 150 mils body width, package outline . . . . . . 28
TSSOP8 – 8 lead Thin Shrink Small Outline, package outline . . . . . . . . . . . . . . . . . . . . . . 29
UFDFPN8 (MLP8) – 8-lead Ultra thin Fine pitch Dual Flat Package No lead
2 × 3mm, package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5/34
5 Page 
M24128, M24C64, M24C32
3 Memory organization
Memory organization
The memory is organized as shown in Figure 6.
Figure 6. Block diagram
WC
E0
Control Logic
E1
E2
SCL
SDA
I/O Shift Register
High Voltage
Generator
Address Register
and Counter
Data
Register
1 Page
X Decoder
AI06899
11/34
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet M24C32.PDF ] | |
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