WLCSP

Serial EEPROM in the smallest
possible size : WLCSP *
*WLCSP : Wafer Level Chip Scale Package
Package roadmap
Profile max (mm)
ST launches new Ultrathin WLCSP package
1.75
0.60
0.58
0.33
0.30
S08N
TSSOP
UFDFPN 8 UFDFPN 5
WLCSP
Standard
WLCSP
Thin
WLCSP
Ultrathin
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WLCSP * EEPROM offer
Answering market demand:
ST introduces WLCSP with thinner profile, below 0.30 mm
Standard
0.58 mm
Thin
0.33 mm
Profile 10% thinner
Ultrathin
< 0.30 mm
Profile 40% thinner
* Wafer Level Chip Scale Package
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WLCSP EEPROM applications
WLCSP specially tailored for innovative designs
Camera
modules
Hearing
aids
Headsets
Medical
Wi-Fi and
Bluetooth
modules
ST’s packaging solutions represent a real advantage for
designers and are the ideal choice for highly spaceconstrained applications
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WLCSP EEPROM advantages
Features
Benefits
Available for I²C and SPI
From 8 Kbits to 2 Mbits
Fits all standard buses
All density requirements
Profile from 0.60, down to 0.30 mm
Adapted to thinnest modules
8 Kbit in 0.3 mg, 128 Kbit in 0.4 mg
Be light!
Minimum pitch: 0.4 mm
Minimum ball diameter: 0.16 mm
T&R packing
Compatible with surface mounting
technology
No underfill required
Land pattern in datasheet
Soldering recommendation
T&R packing description
Easier implementation on the board and
in production
ECOPACK2®
Compliant to RoHS and halogen free
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WLCSP EEPROM in pictures
Which profile does
your design require?
Standard
0.6 mm max
M24C64-FCS6TP/K
Thin
0.33 mm max
M24C64-DFCT6TP/K
Ultrathin
0.30 mm max
M24C64S-FCU6T/T
Scanning electron microscopy
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WLCSP EEPROM selection guide
• No constraint on profile, choose part number from standard profile description
• If constraint on profile, choose part number from thin/ultrathin profile description
Profile
description
Part number
Memory Software Hardware Dimension
Profile Ball size
Pinout
Bump Min Pitch
density Write
Write (max X/Y) (mm) (max)
(typ) compatibility number (mm)
Protect Protect
(mm)
(mm)
Status
I²C bus
Standard
Thin
UltraThin
M24C64-FCS6TP/K 64 Kbits
M24128-DFCS6TP/K 128 Kbits
M24256-DFCS6TP/K 256 Kbits
M24512-DFCS6TP/K 512 Kbits
M24M01-DFCS6TP/K 1 Mbit
M24M02-DRCS6TP/K 2 Mbits
8 Kbits
M24C08-FCT6TP/T
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
1.093
1.291
1.291
1.291
1.718
2.031
0.715
0.979
1.101
1.378
1.957
2.580
3.576
0.705
0.60
0.58
0.58
0.58
0.58
0.58
0.33
0.27
0.27
0.27
0.27
0.27
0.27
0.18
256 Kbits
128 Kbits
1 Mbit
512 Kbits
16 Kbits
5
8
8
8
8
8
4
0.4
0.4
0.4
0.5
0.5
0.5
0.4
Production
Production
Production
Production
Production
Production
Production
M24C64-DFCT6TP/K 64 Kbits
M24C16-DFCU6TP/K 16 Kbits
M24C32S-FCU6T/T 32 Kbits
M24C64S-FCU6T/T 64 Kbits
M24128S-FCU6T/T 128 Kbits
No
No
Yes
Yes
Yes
Yes
No
No
No
No
1.093
0.745
0.85
0.85
0.85
0.979
0.839
0.85
0.85
0.85
0.33
0.30
0.30
0.30
0.30
0.16
0.18
0.18
0.18
0.18
8 Kbits
64/128 Kbits
32/128 Kbits
32/64 Kbits
8
4
4
4
4
0.4
0.4
0.4
0.4
0.4
Production
Production
Production
Production
Production
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1.291
1.291
1.291
1.718
2.031
1.093
1.101
1.378
1.957
2.580
3.576
0.979
0.58
0.58
0.58
0.58
0.58
0.33
0.27
0.27
0.27
0.27
0.27
0.16
256 Kbits
128 Kbits
1 Mbits
512 Kbits
-
8
8
8
8
8
8
0.4
0.4
0.5
0.5
0.5
0.4
Production
Production
Production
Production
Production
Production
SPI bus
Standard
Thin
M95128-DFCS6TP/K 128 Kbits
M95256-DFCS6TP/K 256 Kbits
M95512-DFCS6TP/K 512 Kbits
M95M01-DFCS6TP/K 1 Mbit
M95M02-DRCS6TP/K 2 Mbits
M95640-DFCT6TP/K 64 Kbits
7
7
Thank you!
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