M24128-BR STMICROELECTRONICS [STMicroelectronics], M24128-BR Datasheet - Page 5

• Manufacturer Part Number: M24128-BR
• Description: 128 Kbit, 64 Kbit and 32 Kbit serial I2C bus EEPROM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M24128, M24C64, M24C32
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
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Figure 8.
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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
I
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
2
C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
List of figures
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