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IBM Corporation
IBM Corporation


IBM0436A41BLAB

(IBM04xxAx1BLAB) 8Mb and 4Mb SRAM



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Preliminary
.
IBM0418A81BLAB IBM0436A81BLAB
IBM0418A41BLAB IBM0436A41BLAB
8Mb (256Kx36 & 512x18) and 4Mb (128Kx36 & 256Kx18) SRAM
Features
• 8Mb: 256K x 36 or 512K x 18 organizations
4Mb: 128K x 36 or 256K x 18 organizations
• 0.25 Micron CMOS technology
• Synchronous Pipeline Mode of Operation with
Self-Timed Late Write
• Single Differential HSTL Clock
• +2.5V Power Supply, Ground, 1.5, 1.8V VDDQ,
and 0.90V VREF
• HSTL Input and Output levels
• Registered Addresses, Write Enables, Synchro-
nous Select, and Data Ins
• Registered Outputs
• Common I/O
• Asynchronous Output Enable
• Synchronous Power Down Input
• Boundary Scan using limited set of JTAG
1149.1 functions
• Byte Write Capability and Global Write Enable
• 7 x 17 Bump Ball Grid Array Package with
SRAM JEDEC Standard Pinout and Boundary
SCAN Order
Description
The 4Mb and 8Mb SRAMs—IBM0436A41BLAB,
IBM0418A41BLAB, IBM0418A81BLAB, and
IBM0436A81BLAB—are Synchronous Pipeline
Mode, high-performance CMOS Static Random
Access Memories that are versatile, wide I/O, and
can achieve 3ns cycle times. Differential K clocks
are used to initiate the read/write operation and all
internal operations are self-timed. At the rising edge
of the K clock, all Addresses, Write-Enables, Sync
Select, and Data Ins are registered internally. Data
Outs are updated from output registers off the next
rising edge of the K clock. An internal Write buffer
allows write data to follow one cycle after addresses
and controls. The device is operated with a single
+2.5V power supply and is compatible with HSTL
I/O interfaces.
crrh2519.07
12/13/00
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 1 of 25



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IBM0436A41BLAB pdf
IBM0418A81BLAB IBM0436A81BLAB
www.DatIaBSMhe0e4t14U8A.c4o1mBLAB IBM0436A41BLAB
8Mb (256Kx36 & 512x18) and 4Mb (128Kx36 & 256Kx18) SRAM
Preliminary
x36 BGA Pinout (Top View)
1234567
A VDDQ
SA
SA
NC
SA
SA VDDQ
B NC NC SA NC SA NC, SA(8Mb) NC
C NC SA SA VDD SA SA NC
D DQ23
DQ19
VSS
ZQ
VSS
DQ10
DQb9
E DQ20
DQ26
VSS
SS
VSS
DQ12
DQb11
F VDDQ
DQ22
VSS
G
VSS
DQ13
VDDQ
G DQ18
DQ24
SBWc
NC
SBWb
DQ15
DQb14
H DQ25
DQ21
VSS
NC
VSS
DQ17
DQb16
J VDDQ
VDD
VREF
VDD
VREF
VDD
VDDQ
K DQ34
DQ35
VSS
K
VSS
DQ8
DQ7
L DQ32
DQ33
SBWd
K
SBWa
DQ6
DQ5
M VDDQ
DQ31
VSS
SW
VSS
DQ4
VDDQ
N DQ29
DQ30
VSS
SA0
VSS
DQ3
DQ2
P DQ27
DQ28
VSS
SA1
VSS
DQ1
DQ0
R NC
SA
M1* VDD M2*
SA
NC
T NC NC SA SA SA NC ZZ
U VDDQ
TMS
TDI
TCK
TDO
NC
VDDQ
Note: * M1 and M2 are clock mode pins. For this application, M1 and M2 need to connect to VSS and VDD, respectively.
x18 BGA Pinout (Top View)
1234567
A VDDQ
SA
SA
NC
SA
SA VDDQ
B NC NC SA NC SA NC, SA(8Mb) NC
C NC SA SA VDD SA SA NC
D DQ9
NC
VSS
ZQ
VSS DQ1 NC
E NC
DQ15
VSS
SS
VSS
NC DQ4
F VDDQ
NC
VSS
G
VSS
DQ5
VDDQ
G NC
DQ16
SBWb
NC
NC
NC DQ8
H DQ12
NC
VSS
NC
VSS DQ2
NC
J VDDQ
VDD
VREF
VDD
VREF
VDD
VDDQ
K NC
DQ11
VSS
K
VSS NC DQ3
L DQ13
NC
NC
K
SBWa
DQ7
NC
M VDDQ
DQ17
VSS
SW
VSS
NC VDDQ
N DQ14
NC
VSS SA0 VSS DQ0
NC
P NC
DQ10
VSS
SA1
VSS
NC
DQ6
R NC SA M1 VDD M2 SA NC
T NC SA SA NC SA SA ZZ
U VDDQ
TMS
TDI
TCK
TDO
NC VDDQ
Note: * M1 and M2 are clock mode pins. For this application, M1 and M2 need to connect to VSS and VDD respectively.
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 2 of 25
crrh2519.07
12/13/00



Part Number IBM0436A41BLAB
Description (IBM04xxAx1BLAB) 8Mb and 4Mb SRAM
Maker IBM Corporation - IBM Corporation
Total Page 25 Pages
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