Table 7-6. U1409 Sram Pinouts - Motorola ASTRO XTSTM 4000 Detailed Service Manual

7-8
U1409
Description
Pin No.
A1 EN_BLE
A2 EN_OE
B2 EN_BHE
B5 EN_CE
G5 EN_WE
A6 CE2
A3 Address 0
A4 Address 1
A5 Address 2
B3 Address 3
B4 Address 4
C3 Address 5
C4 Address 6
D4 Address 7
H2 Address 8
H3 Address 9
H4 Address 10
H5 Address 11
G3 Address 12
G4 Address 13
F3 Address 14
F4 Address 15
E4 Address 16
D3 Address 17
H1 Address 18
D1 VSS
E6 VSSQ
H6 NC2
G2 NC1
E3 DNU
May 28, 2008
Troubleshooting Tables: List of Board and IC Signals

Table 7-6. U1409 SRAM Pinouts

To/From
R1422
E1130
E1126
R1421
GROUND
GROUND
R1708
R1438
R9990
Accessible
Comment on
Mainboard?
No
No
No
No
No
1.875V Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
Yes
Yes
Yes
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