28F640L18, 28F128L18, 28F256L18
2.2
Ballout Diagrams
The L18 flash memory device is available in a VF BGA package with 0.75 mm ball-pitch. Figure 1
shows the ballout for the 64-Mbit and 128-Mbit devices in the 56-ball VF BGA package with a 7 x
8 active-ball matrix. Figure 2 shows the device ballout for the 256-Mbit device in the 63-ball VF
BGA package with a 7 x 9 active-ball matrix. Both package densities are ideal for space-
constrained board applications
Figure 1. 7x8 Active-Ball Matrix for 64-, and 128-Mbit Densities in VF BGA Packages
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
A
B
C
D
E
F
A
B
C
D
E
F
A11
A12
A8
A9
VSS
A20
A21
WAIT
D6
VCC
CLK
VPP
A18
A17
A6
A5
A4
A3
A4
A3
A6
A5
A18
A17
VPP
VCC
CLK
VSS
A20
A21
WAIT
D6
A8
A9
A11
A12
RST#
RST#
A13
A15
A10
A14
D15
ADV#
A16
D4
WE#
D12
A19
A7
A2
A1
A2
A1
A7
A19
WE#
D12
ADV#
A16
D4
A10
A14
D15
A13
A15
WP#
WP#
A22
CE#
D0
A22
CE#
VCCQ
VCCQ
D2
D1
D9
A0
OE#
A0
D1
D2
OE#
VSS
D
D14
D13
7
D11
D10
D3
D0
D8
D9
D10
D3
D11
D13
D5
D14
VSS
D7
G
G
VSSQ
VCC
D
VCCQ5 D8
VSSQ
VSSQ
VCCQ
VCC
VSSQ
VFBGA 7x8
Top View - Ball Side Down
VFBGA 7x8
Bottom View - Ball Side Up
NOTE: On lower-density devices, upper-address balls can be treated as NC. (e.g., for 64-Mbit density, A22 will be NC)
Figure 2. 7x9 Active-Ball Matrix for 256-Mbit Density in VF BGA Package
1
1
13
12
11
10
9
8
7
6
5
4
3
2
2
3
4
5
6
7
8
9
1012 1113
A
B
A
B
DU
DU
DU
DU
RFU
RFU
A4
A6
A5
A7
A18
VPP
VCC VSS
A8
A11
A12
DU
DU
DU
DU
DU
DU
DU
DU
A11
A12
A8
A9
VSS VCC
A20 CLK
VPP A18
RST# A17
A6
A5
A4
A3
RFU
RFU
DU
DU
DU
DU
CLK A20A9
A3
A17 RST#
C
D
E
C
D
E
A10 A21 ADV#
A25
A24
A2
A1
A19 WE# ADV# A21 A10A13
A13
A15
WE# A19
D12 WP#
A7
A2
A1
A25
A24
A22 WP# D12
A16 WAIT A14
A15
A14 WAIT
A16
D4
A22
D15
D6
A23
RFU
A0CE#
OE#
D1
D2
D4 D6
D15 VCCQ
VCCQ
D2
D1
D9
CE#
D0
A0
A23
F
F
DU
DU
DU
DU
DU
DU
DU
DU
D0D9
D10
D1D311 D14
VSS
DU
DU
DU
DU
DU
DU
DU
DU
VSS D14
D13 D11
D10
OE# RFU
G
G
RFU VSSQ D8 VCCQ D3
Bottom View
VCC D5
VSSQ D7
D7 VSSQ D5 VCC
Ball Side Down-
D3 VCCQ D8 VSSQ RFU
Top View
-
Ball Side Up
NOTE: On lower density devices upper address balls can be treated as RFUs. (A24 is for 512Mb and A25 is for 1Gb densities.) All
ball locations are populated.
10
Datasheet
NUMONYX [ NUMONYX B.V ]
