M24512-X 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

M24512-X

512 Kbit and 256 Kbit serial I²C bus EEPROM with three Chip Enable lines

STMicroelectronics 

M24512-x, M24256-Bx

List of figures

List of figures

Figure 1.

Figure 2.

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Figure 4.

Figure 5.

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Figure 7.

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Figure 11.

Figure 12.

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Figure 17.

Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

SO and TSSOP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

WLCSP connections (top view, marking side, with balls on the underside) . . . . . . . . . . . . 7

Device select code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

M24256-BF, M24xxx-R/W – Maximum Rbus value versus bus parasitic

capacitance (Cbus) for an I2C bus at maximum frequency fC = 400 kHz . . . . . . . . . . . . . . 10

M24xxx-HR – Maximum Rbus value versus bus parasitic capacitance

(Cbus) for an I2C bus at maximum frequency fC = 1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . 10

I2C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

AC test measurement I/O waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

SO8W – 8-lead plastic small outline, 208 mils body width, package outline . . . . . . . . . . . 28

SO8N – 8-lead plastic small outline, 150 mils body width, package outline . . . . . . . . . . . . 29

TSSOP8 – 8-lead thin shrink small outline, package outline . . . . . . . . . . . . . . . . . . . . . . . 30

WLCSP, 0.5 mm pitch, package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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