m24256-bw STMicroelectronics, m24256-bw Datasheet - Page 5
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m24256-bw
Manufacturer Part Number
m24256-bw
Description
512 Kbit And 256 Kbit Serial I?c Bus Eeprom With Three Chip Enable Lines
Manufacturer
STMicroelectronics
Datasheet
1.M24256-BW.pdf
(41 pages)
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Quantity
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Manufacturer:
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Quantity:
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M24512-Dx, M24512-x, M24256-Bx
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.
Figure 17.
Figure 18.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SO and TSSOP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
WLCSP connections (top view, marking side, with balls on the underside) . . . . . . . . . . . . 7
Device select code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
I
I
I
Write mode sequences with WC = 1 (data write inhibited) . . . . . . . . . . . . . . . . . . . . . . . . . 15
Write mode sequences with WC = 0 (data write enabled) . . . . . . . . . . . . . . . . . . . . . . . . . 18
Write cycle polling flowchart using ACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Read mode sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
AC test measurement I/O waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SO8W – 8-lead plastic small outline, 208 mils body width, package outline . . . . . . . . . . . 31
SO8N – 8-lead plastic small outline, 150 mils body width, package outline . . . . . . . . . . . . 32
TSSOP8 – 8-lead thin shrink small outline, package outline . . . . . . . . . . . . . . . . . . . . . . . 33
UFDFPN8 (MLP8) 8-lead ultra thin fine pitch dual flat package no lead
2 x 3 mm, outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
WLCSP, 0.5 mm pitch, package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2
bus parasitic capacitance (C
2
bus parasitic capacitance (C
2
C Fast mode (f
C Fast mode Plus (f
C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
C
= 400 kHz): maximum R
C
= 1 MHz): maximum R
bus
bus
Doc ID 6757 Rev 15
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
bus
bus
value versus
value versus
List of figures
5/41