IS61NVF25636A-7.5B2I [ISSI]

256K x 36 and 512K x 18 9Mb, FLOW THROUGH (NO WAIT) STATE BUS SRAM; 256K ×36和512K ×18 9MB ,流过(不等待)态总线SRAM
IS61NVF25636A-7.5B2I
型号: IS61NVF25636A-7.5B2I
厂家: INTEGRATED SILICON SOLUTION, INC    INTEGRATED SILICON SOLUTION, INC
描述:

256K x 36 and 512K x 18 9Mb, FLOW THROUGH (NO WAIT) STATE BUS SRAM
256K ×36和512K ×18 9MB ,流过(不等待)态总线SRAM

静态存储器
文件: 总37页 (文件大小:236K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
®
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
ISSI  
256K x 36 and 512K x 18  
9Mb, FLOW THROUGH 'NO WAIT'  
STATE BUS SRAM  
AUGUST 2005  
FEATURES  
DESCRIPTION  
The 9 Meg 'NLF/NVF' product family feature high-speed,  
low-power synchronous static RAMs designed to provide  
a burstable, high-performance, 'no wait' state, device for  
networking and communications applications. They are  
organized as 256K words by 36 bits and 512K words by 18  
bits, fabricated with ISSI's advanced CMOS technology.  
• 100 percent bus utilization  
• No wait cycles between Read and Write  
• Internal self-timed write cycle  
• Individual Byte Write Control  
• Single Read/Write control pin  
Incorporating a 'no wait' state feature, wait cycles are  
eliminated when the bus switches from read to write, or  
write to read. This device integrates a 2-bit burst counter,  
high-speed SRAM core, and high-drive capability outputs  
into a single monolithic circuit.  
• Clock controlled, registered address,  
data and control  
• Interleaved or linear burst sequence control using  
MODE input  
Allsynchronousinputspassthroughregistersarecontrolled  
byapositive-edge-triggeredsingleclockinput.Operations  
may be suspended and all synchronous inputs ignored  
when Clock Enable, CKE is HIGH. In this state the internal  
device will hold their previous values.  
• Three chip enables for simple depth expansion  
and address pipelining  
• Power Down mode  
• Common data inputs and data outputs  
CKE pin to enable clock and suspend operation  
All Read, Write and Deselect cycles are initiated by the  
ADV input. When the ADV is HIGH the internal burst  
counter is incremented. New external addresses can be  
loaded when ADV is LOW.  
• JEDEC 100-pin TQFP, 119-ball PBGA, and 165-  
ball PBGA packages  
Write cycles are internally self-timed and are initiated by  
the rising edge of the clock inputs and when WE is LOW.  
Separate byte enables allow individual bytes to be written.  
• Power supply:  
NVF: VDD 2.5V (± 5%), VDDQ 2.5V (± 5%)  
NLF: VDD 3.3V (± 5%), VDDQ 3.3V/2.5V (± 5%)  
A burst mode pin (MODE) defines the order of the burst  
sequence.WhentiedHIGH,theinterleavedburstsequence  
is selected. When tied LOW, the linear burst sequence is  
selected.  
• JTAG Boundary Scan for PBGA packages  
• Industrial temperature available  
• Lead-free available  
FAST ACCESS TIME  
Symbol  
tKQ  
Parameter  
6.5  
6.5  
7.5  
133  
7.5  
7.5  
8.5  
117  
Units  
ns  
Clock Access Time  
Cycle Time  
tKC  
ns  
Frequency  
MHz  
Copyright © 2005 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability  
arisingoutoftheapplicationoruseofanyinformation, productsorservicesdescribedherein. Customersareadvisedtoobtainthelatestversionofthisdevicespecificationbeforerelyingonany  
publishedinformationandbeforeplacingordersforproducts.  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
1
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
BLOCK DIAGRAM  
A2-A17 or A2-A18  
256Kx36;  
512Kx18  
MEMORY ARRAY  
ADDRESS  
REGISTER  
x 36: A [0:17] or  
x 18: A [0:18]  
MODE  
BURST  
ADDRESS  
COUNTER  
K
K
DATA-IN  
REGISTER  
A0-A1  
A'0-A'1  
DATA-IN  
REGISTER  
WRITE  
ADDRESS  
REGISTER  
WRITE  
ADDRESS  
REGISTER  
CLK  
CONTROL  
LOGIC  
K
CKE  
CE  
CE2  
CE2  
CONTROL  
REGISTER  
ADV  
WE  
K
CONTROL  
LOGIC  
}
BW  
X
(X= a-d, or a,b)  
BUFFER  
OE  
ZZ  
36 or 18  
DQx/DQPx  
2
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
Bottom View  
165-Ball, 13 mm x 15mm BGA  
Bottom View  
119-Ball, 14 mm x 22 mm BGA  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
3
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
PIN CONFIGURATION — 256K X 36, 165-Ball PBGA (TOP VIEW)  
1
2
3
4
5
6
7
8
9
A
10  
11  
NC  
A
B
C
D
E
F
NC  
A
CE  
BWc  
BWd  
VSS  
BWb  
BWa  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
NC  
CE2  
CLK  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
NC  
CKE  
WE  
ADV  
OE  
A
NC  
A
CE2  
NC  
A
NC  
DQPc  
DQc  
DQc  
DQc  
DQc  
NC  
NC  
VDDQ  
VDDQ  
VDDQ  
VDDQ  
VDDQ  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
VSS  
NC  
VSS  
V
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
NC  
DQb  
DQb  
DQb  
DQb  
NC  
DQa  
DQa  
DQa  
DQa  
NC  
A
DQPb  
DQb  
DQb  
DQb  
DQb  
ZZ  
DQc  
DQc  
DQc  
DQc  
NC  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
VDD  
V
V
V
V
G
H
J
NC  
NC  
DQd  
DQd  
DQd  
DQd  
DQPd  
NC  
DQd  
DQd  
DQd  
DQd  
NC  
V
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
A
V
DDQ  
DDQ  
DDQ  
DDQ  
DDQ  
A
DQa  
DQa  
DQa  
DQa  
DQPa  
NC  
K
L
V
V
V
V
V
V
V
V
M
N
P
R
VSS  
A
VSS  
A
NC  
TDI  
A1*  
A0*  
TDO  
TCK  
MODE  
NC  
A
A
TMS  
A
A
A
A
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.  
PIN DESCRIPTIONS  
MODE  
Burst Sequence Selection  
JTAG Pins  
Symbol  
A
Pin Name  
TCK, TDI  
Address Inputs  
TDO, TMS  
A0, A1  
ADV  
Synchronous Burst Address Inputs  
VDD  
NC  
3.3V/2.5V Power Supply  
NoConnect  
Synchronous Burst Address Advance/  
Load  
DQx  
DQPx  
VDDQ  
DataInputs/Outputs  
Parity Data I/O  
WE  
SynchronousRead/WriteControlInput  
SynchronousClock  
CLK  
CKE  
Isolated output Power Supply  
3.3V/2.5V  
Clock Enable  
CE, CE2, CE2 SynchronousChipEnable  
VSS  
Ground  
BWx(x=a-d)  
Synchronous Byte Write Inputs  
OutputEnable  
OE  
ZZ  
PowerSleepMode  
4
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
119-PIN PBGA PACKAGE CONFIGURATION  
256K x 36 (TOP VIEW)  
1
2
3
4
5
6
7
A
B
C
D
V
DDQ  
A
A
A
A
NC  
A
A
A
V
DDQ  
NC  
NC  
CE2  
A
ADV  
CE2  
A
NC  
NC  
V
DD  
A
DQc  
DQc  
DQPc  
DQc  
DQc  
DQc  
V
SS  
SS  
SS  
NC  
CE  
OE  
A
Vss  
Vss  
Vss  
BWb  
DQPb  
DQb  
DQb  
DQb  
DQb  
DQb  
V
V
E
F
V
DDQ  
DQc  
DQc  
V
DDQ  
BWc  
DQb  
DQb  
G
VSS  
DQc  
WE  
Vss  
NC  
DQb  
H
J
NC  
V
DDQ  
DQd  
DQd  
V
DD  
VDD  
V
DD  
V
DDQ  
K
L
V
SS  
DQd  
DQd  
DQd  
DQd  
DQPd  
CLK  
NC  
Vss  
BWa  
Vss  
Vss  
Vss  
DQa  
DQa  
DQa  
DQa  
DQPa  
DQa  
DQa  
BWd  
VDDQ  
VSS  
CKE  
V
DDQ  
M
N
P
R
T
DQd  
DQd  
A
A
1
*
*
DQa  
DQa  
VSS  
0
VSS  
NC  
NC  
A
MODE  
A
VDD  
NC  
A
A
NC  
ZZ  
NC  
A
NC  
NC  
U
V
DDQ  
TMS  
TDI  
TCK  
TDO  
V
DDQ  
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.  
PIN DESCRIPTIONS  
OE  
OutputEnable  
Symbol  
A
Pin Name  
ZZ  
PowerSleepMode  
Burst Sequence Selection  
JTAG Pins  
Address Inputs  
MODE  
TCK, TDO  
TMS, TDI  
VDD  
A0, A1  
ADV  
Synchronous Burst Address Inputs  
Synchronous Burst Address Advance/  
Load  
PowerSupply  
Ground  
WE  
SynchronousRead/WriteControlInput  
SynchronousClock  
VSS  
CLK  
NC  
NoConnect  
CKE  
Clock Enable  
DQa-DQd  
DQPa-Pd  
VDDQ  
DataInputs/Outputs  
Parity Data I/O  
Output Power Supply  
CE  
Synchronous Chip Select  
Synchronous Chip Select  
Synchronous Chip Select  
Synchronous Byte Write Inputs  
CE2  
CE2  
BWx(x=a-d)  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
5
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
165-PIN PBGA PACKAGE CONFIGURATION  
512K x 18 (TOP VIEW)  
1
2
3
4
5
6
7
8
9
10  
11  
A
B
C
D
CKE  
NC  
ADV  
A
A
A
A
A
BWb  
NC  
A
CE2  
CLK  
Vss  
Vss  
CE  
NC  
CE2  
NC  
DDQ  
OE  
WE  
NC  
NC  
BWa  
V
NC  
Vss  
Vss  
DQPa  
NC  
V
DDQ  
DDQ  
DDQ  
Vss  
Vss  
NC  
NC  
NC  
VDD  
Vss  
V
V
V
DD  
DQa  
DQa  
DQa  
DQa  
ZZ  
NC  
Vss  
Vss  
Vss  
Vss  
V
DDQ  
DDQ  
DQb  
DQb  
VDD  
V
V
DD  
DD  
E
F
NC  
Vss  
Vss  
Vss  
Vss  
V
DDQ  
DDQ  
V
DDQ  
V
DD  
DD  
NC  
DQb  
NC  
NC  
V
V
Vss  
Vss  
Vss  
Vss  
V
G
NC  
V
DDQ  
DQb  
NC  
NC  
NC  
NC  
VDD  
V
DD  
DD  
DD  
DD  
DD  
V
DD  
NC  
H
J
NC  
NC  
Vss  
Vss  
NC  
V
DDQ  
V
Vss  
Vss  
Vss  
V
DDQ  
DDQ  
V
DD  
DD  
DQb  
DQb  
DQb  
DQb  
DQPb  
NC  
DQa  
NC  
NC  
NC  
K
L
V
V
DDQ  
DDQ  
V
V
Vss  
Vss  
Vss  
Vss  
DQa  
DQa  
DQa  
NC  
A
V
V
Vss  
Vss  
VDD  
V
DDQ  
V
NC  
NC  
V
DDQ  
VDD  
M
N
P
NC  
NC  
NC  
NC  
Vss  
Vss  
NC  
V
DDQ  
Vss  
A
NC  
VDDQ  
Vss  
A
NC  
TDI  
V
DDQ  
A
A
NC  
A
A
1
*
*
TDO  
TCK  
TMS  
A
A
0
A
A
A
A
R
MODE  
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.  
PIN DESCRIPTIONS  
MODE  
Burst Sequence Selection  
JTAG Pins  
Symbol  
A
Pin Name  
TCK, TDI  
Address Inputs  
TDO, TMS  
A0, A1  
ADV  
Synchronous Burst Address Inputs  
VDD  
NC  
3.3V/2.5V Power Supply  
NoConnect  
Synchronous Burst Address Advance/  
Load  
DQx  
DQPx  
VDDQ  
DataInputs/Outputs  
Parity Data I/O  
WE  
SynchronousRead/WriteControlInput  
SynchronousClock  
CLK  
CKE  
Isolated output Power Supply  
3.3V/2.5V  
Clock Enable  
CE, CE2, CE2 SynchronousChipEnable  
VSS  
Ground  
BWx (x=a,b)  
Synchronous Byte Write Inputs  
OutputEnable  
OE  
ZZ  
PowerSleepMode  
6
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
119-PIN PBGA PACKAGE CONFIGURATION  
512K x 18 (TOP VIEW)  
1
2
3
4
5
6
7
A
B
C
D
V
DDQ  
A
CE2  
A
A
A
A
NC  
A
A
A
CE2  
A
V
DDQ  
NC  
NC  
ADV  
NC  
NC  
V
DD  
A
NC  
NC  
DQb  
V
SS  
SS  
SS  
NC  
CE  
OE  
A
Vss  
Vss  
Vss  
NC  
DQPa  
NC  
DQa  
DQb  
NC  
V
V
E
F
NC  
DQa  
NC  
V
DDQ  
VDDQ  
NC  
DQa  
NC  
DQb  
NC  
BWb  
G
DQa  
VSS  
DQb  
WE  
Vss  
NC  
H
J
NC  
VDDQ  
V
DD  
VDD  
V
DD  
V
DDQ  
K
L
V
SS  
DQb  
NC  
CLK  
NC  
Vss  
BWa  
Vss  
Vss  
Vss  
DQa  
NC  
NC  
NC  
DQa  
NC  
DQa  
NC  
A
DQb  
NC  
VDDQ  
DQb  
NC  
V
SS  
SS  
CKE  
V
DDQ  
M
N
P
R
T
NC  
DQa  
NC  
DQb  
NC  
V
A
A
1
*
*
0
V
SS  
DQPb  
A
NC  
MODE  
A
VDD  
NC  
A
A
NC  
ZZ  
A
NC  
U
V
DDQ  
TMS  
TDI  
TCK  
TDO  
NC  
VDDQ  
Note: A0 and A1 are the two least significant bits (LSB) of the address field and set the internal burst counter if burst is desired.  
PIN DESCRIPTIONS  
OE  
OutputEnable  
Symbol  
A
Pin Name  
ZZ  
PowerSleepMode  
Burst Sequence Selection  
JTAG Pins  
Address Inputs  
MODE  
TCK, TDO  
TMS, TDI  
VDD  
A0, A1  
ADV  
Synchronous Burst Address Inputs  
Synchronous Burst Address Advance/  
Load  
PowerSupply  
Ground  
WE  
SynchronousRead/WriteControlInput  
SynchronousClock  
VSS  
CLK  
NC  
NoConnect  
CKE  
Clock Enable  
DQa-DQb  
DQPa-Pb  
VDDQ  
DataInputs/Outputs  
Parity Data I/O  
Output Power Supply  
CE  
Synchronous Chip Select  
Synchronous Chip Select  
Synchronous Chip Select  
Synchronous Byte Write Inputs  
CE2  
CE2  
BWx (x=a,b)  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
7
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
PIN CONFIGURATION  
100-Pin TQFP  
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
100  
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
100  
DQPc  
DQc  
DQc  
VDDQ  
Vss  
1
2
3
4
5
6
7
8
9
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
DQPb  
DQb  
DQb  
VDDQ  
Vss  
NC  
NC  
1
2
3
4
5
6
7
8
9
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
A
NC  
NC  
NC  
V
DDQ  
V
DDQ  
Vss  
Vss  
DQc  
DQc  
DQb  
DQb  
NC  
NC  
NC  
DQPa  
DQc  
DQc  
Vss  
DQb  
DQb  
Vss  
DQb  
DQb  
Vss  
DQa  
DQa  
Vss  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
VDDQ  
DQc  
VDDQ  
DQb  
V
DDQ  
V
DDQ  
DQb  
DQa  
DQc  
NC  
DQb  
Vss  
NC  
DQb  
NC  
DQa  
Vss  
NC  
VDD  
V
DD  
NC  
Vss  
VDD  
ZZ  
NC  
VDD  
Vss  
ZZ  
DQa  
DQa  
VDDQ  
Vss  
DQd  
DQd  
VDDQ  
DQb  
DQb  
DQa  
DQa  
V
DDQ  
VDDQ  
Vss  
Vss  
Vss  
DQd  
DQa  
DQa  
DQb  
DQa  
DQa  
DQb  
DQd  
DQPb  
NC  
DQd  
DQd  
Vss  
DQa  
DQa  
Vss  
NC  
NC  
Vss  
Vss  
VDDQ  
VDDQ  
V
DDQ  
V
DDQ  
NC  
NC  
NC  
NC  
NC  
NC  
DQd  
DQd  
DQa  
DQa  
DQPd  
DQPa  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
512K x 18  
256K x 36  
PIN DESCRIPTIONS  
CE, CE2, CE2 SynchronousChipEnable  
A0, A1  
Synchronous Address Inputs. These  
pins must tied to the two LSBs of the  
address bus.  
OE  
OutputEnable  
DQa-DQd  
DQPa-DQPd  
MODE  
VDD  
SynchronousDataInput/Output  
Parity Data I/O  
A
Synchronous Address Inputs  
SynchronousClock  
CLK  
ADV  
BWa-BWd  
WE  
Burst Sequence Selection  
+3.3V/2.5V Power Supply  
Ground for output Buffer  
Synchronous Burst Address Advance  
Synchronous Byte Write Enable  
WriteEnable  
VSS  
VDDQ  
Isolated Output Buffer Supply: +3.3V/2.5V  
SnoozeEnable  
CKE  
Vss  
Clock Enable  
ZZ  
GroundforCore  
NC  
NotConnected  
8
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
STATE DIAGRAM  
READ  
WRITE  
BEGIN  
READ  
BEGIN  
WRITE  
WRITE  
READ  
DS  
DS  
READ  
WRITE  
DESELECT  
READ  
BURST  
BURST  
WRITE  
BURST  
DS  
DS  
DS  
WRITE  
BURST  
READ  
BURST  
BURST  
BURST  
WRITE  
READ  
SYNCHRONOUSTRUTHTABLE(1)  
Address  
Operation  
Used  
CE  
CE2 CE2 ADV  
WE  
BWx  
OE  
CKE CLK  
Not Selected  
N/A  
N/A  
H
X
X
X
L
X
L
X
X
H
X
L
L
L
X
X
X
X
H
X
H
X
L
X
X
X
X
X
X
X
X
L
X
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
L
H
Not Selected  
Not Selected  
N/A  
X
X
H
X
H
X
H
X
H
X
X
L
NotSelectedContinue  
Begin Burst Read  
ContinueBurstRead  
NOP/DummyRead  
DummyRead  
N/A  
H
L
External Address  
Next Address  
External Address  
Next Address  
External Address  
Next Address  
N/A  
X
L
X
L
H
L
L
H
H
X
X
X
X
X
X
L
X
L
H
L
Begin Burst Write  
ContinueBurstWrite  
NOP/WriteAbort  
WriteAbort  
X
L
X
L
H
L
X
L
L
H
H
X
Next Address  
CurrentAddress  
X
X
X
X
H
X
X
X
IgnoreClock  
Notes:  
1. "X" means don't care.  
2. The rising edge of clock is symbolized by ↑  
3. A continue deselect cycle can only be entered if a deselect cycle is executed first.  
4. WE = L means Write operation in Write Truth Table.  
WE = H means Read operation in Write Truth Table.  
5. Operation finally depends on status of asynchronous pins (ZZ and OE).  
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Rev. B  
9
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
ASYNCHRONOUSTRUTHTABLE(1)  
Operation  
ZZ  
OE  
I/O STATUS  
SleepMode  
H
X
High-Z  
L
L
L
H
DQ  
High-Z  
Read  
Write  
L
L
X
X
Din,High-Z  
High-Z  
Deselected  
Notes:  
1. X means "Don't Care".  
2. For write cycles following read cycles, the output buffers must be disabled with OE, otherwise data bus  
contention will occur.  
3. Sleep Mode means power Sleep Mode where stand-by current does not depend on cycle time.  
4. Deselected means power Sleep Mode where stand-by current depends on cycle time.  
WRITE TRUTH TABLE (x18)  
Operation  
WE  
BWa  
BWb  
READ  
H
L
L
L
L
X
L
X
H
L
WRITE BYTE a  
WRITE BYTE b  
WRITE ALL BYTEs  
WRITEABORT/NOP  
H
L
L
H
H
Notes:  
1. X means "Don't Care".  
2. All inputs in this table must beet setup and hold time around the rising edge of CLK.  
10  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
WRITE TRUTH TABLE (x36)  
Operation  
WE  
BWa  
BWb  
BWc  
BWd  
READ  
H
L
L
L
L
L
L
X
L
X
H
L
X
H
H
L
X
H
H
H
L
WRITE BYTE a  
WRITE BYTE b  
WRITE BYTE c  
WRITE BYTE d  
WRITE ALL BYTEs  
WRITEABORT/NOP  
H
H
H
L
H
H
L
H
L
L
H
H
H
H
Notes:  
1. X means "Don't Care".  
2. All inputs in this table must beet setup and hold time around the rising edge of CLK.  
INTERLEAVED BURST ADDRESS TABLE (MODE = VDD or NC)  
External Address  
A1 A0  
1st Burst Address  
A1 A0  
2nd Burst Address  
A1 A0  
3rd Burst Address  
A1 A0  
00  
01  
10  
11  
01  
00  
11  
10  
10  
11  
00  
01  
11  
10  
01  
00  
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Rev. B  
11  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
LINEAR BURST ADDRESS TABLE (MODE = VSS)  
0,0  
A1', A0' = 1,1  
0,1  
1,0  
ABSOLUTE MAXIMUM RATINGS(1)  
Symbol  
TSTG  
Parameter  
Value  
–65 to +150  
1.6  
Unit  
°C  
W
StorageTemperature  
PowerDissipation  
OutputCurrent(perI/O)  
PD  
IOUT  
100  
mA  
V
VIN, VOUT  
VIN  
Voltage Relative to VSS for I/O Pins  
–0.5 to VDDQ + 0.3  
–0.3 to 4.6  
Voltage Relative to VSS for  
V
for Address and Control Inputs  
Notes:  
1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is  
a stress rating only and functional operation of the device at these or any other conditions above those indicated in the  
operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods  
may affect reliability.  
2. This device contains circuity to protect the inputs against damage due to high static voltages or electric fields; however,  
precautions may be taken to avoid application of any voltage higher than maximum rated voltages to this high-impedance  
circuit.  
3. This device contains circuitry that will ensure the output devices are in High-Z at power up.  
OPERATING RANGE (IS61NLFx)  
Range  
AmbientTemperature  
0°C to +70°C  
VDD  
VDDQ  
Commercial  
Industrial  
3.3V ± 5%  
3.3V ± 5%  
3.3V / 2.5V ± 5%  
3.3V / 2.5V ± 5%  
-40°Cto+85°C  
12  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
OPERATING RANGE (IS61NVFx)  
Range  
AmbientTemperature  
0°C to +70°C  
VDD  
VDDQ  
Commercial  
Industrial  
2.5V ± 5%  
2.5V ± 5%  
2.5V ± 5%  
2.5V ± 5%  
-40°Cto+85°C  
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)  
3.3V  
2.5V  
Symbol  
Parameter  
Test Conditions  
Min.  
Max.  
Min.  
Max.  
Unit  
VOH  
Output HIGH Voltage  
IOH = –4.0 mA (3.3V)  
IOH = –1.0 mA (2.5V)  
2.4  
2.0  
V
VOL  
Output LOW Voltage  
IOL = 8.0 mA (3.3V)  
IOL = 1.0 mA (2.5V)  
0.4  
0.4  
V
VIH  
VIL  
ILI  
Input HIGH Voltage  
Input LOW Voltage  
2.0  
–0.3  
–5  
VDD + 0.3  
1.7  
–0.3  
–5  
VDD + 0.3  
V
V
0.8  
5
0.7  
5
(1)  
Input Leakage Current  
Output Leakage Current  
VSS VIN VDD  
µA  
µA  
ILO  
VSS VOUT VDDQ, OE = VIH  
–5  
5
–5  
5
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)  
6.5  
7.5  
MAX  
MAX  
Symbol Parameter  
Test Conditions  
Temp.range  
x18  
x36  
x18  
x36  
Unit  
ICC  
ISB  
ISBI  
AC Operating  
Supply Current  
Device Selected,  
OE = VIH, ZZ VIL,  
All Inputs 0.2V or VDD – 0.2V,  
Cycle Time tKC min.  
Com.  
Ind.  
280  
300  
280  
300  
270  
280  
270  
280  
mA  
mA  
mA  
Standby Current  
TTL Input  
Device Deselected,  
VDD = Max.,  
All Inputs VIL or VIH,  
ZZ VIL, f = Max.  
Com.  
Ind.  
100  
100  
100  
100  
100  
100  
100  
100  
Standby Current  
CMOS Input  
Device Deselected,  
VDD = Max.,  
Com.  
Ind.  
70  
80  
70  
80  
70  
80  
70  
80  
VIN  
VSS + 0.2V or VDD – 0.2V  
f = 0  
ISB2  
Sleep Mode  
ZZ > VIH  
Com.  
Ind.  
45  
50  
45  
50  
45  
50  
45  
50  
mA  
Note:  
1. MODE pin has an internal pullup and should be tied to VDD or VSS. It exhibits ±100 µA maximum leakage current when tied to  
VSS + 0.2V or VDD – 0.2V.  
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Rev. B  
13  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
CAPACITANCE(1,2)  
Symbol  
Parameter  
Conditions  
VIN = 0V  
Max.  
Unit  
pF  
CIN  
InputCapacitance  
Input/OutputCapacitance  
6
8
COUT  
Notes:  
VOUT = 0V  
pF  
1. Tested initially and after any design or process changes that may affect these parameters.  
2. Test conditions: TA = 25°C, f = 1 MHz, VDD = 3.3V.  
3.3V I/O AC TEST CONDITIONS  
Parameter  
Unit  
0V to 3.0V  
1.5 ns  
Input Pulse Level  
Input Rise and Fall Times  
Input and Output Timing  
andReferenceLevel  
1.5V  
OutputLoad  
See Figures 1 and 2  
3.3V I/O OUTPUT LOAD EQUIVALENT  
317 Ω  
+3.3V  
Zo= 50Ω  
OUTPUT  
OUTPUT  
5 pF  
50Ω  
Including  
jig and  
scope  
351 Ω  
1.5V  
Figure 1  
Figure 2  
14  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
2.5V I/O AC TEST CONDITIONS  
Parameter  
Unit  
0V to 2.5V  
1.5 ns  
Input Pulse Level  
Input Rise and Fall Times  
Input and Output Timing  
andReferenceLevel  
1.25V  
OutputLoad  
See Figures 3 and 4  
2.5V I/O OUTPUT LOAD EQUIVALENT  
1,667 Ω  
+2.5V  
ZO = 50Ω  
OUTPUT  
OUTPUT  
50Ω  
5 pF  
Including  
jig and  
scope  
1,538 Ω  
1.25V  
Figure 3  
Figure 4  
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Rev. B  
15  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
READ/WRITE CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)  
6.5  
Min.  
7.5  
Min. Max.  
Symbol  
fmax  
tKC  
Parameter  
Max.  
133  
6.5  
3.8  
3.2  
3.5  
2
Unit  
ClockFrequency  
7.5  
2.2  
2.2  
8.5  
2.5  
2.5  
117  
7.5  
4.0  
3.4  
3.5  
2
MHz  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
cyc  
cyc  
Cycle Time  
tKH  
Clock High Time  
tKL  
Clock Low Time  
tKQ  
Clock Access Time  
(2)  
tKQX  
Clock High to Output Invalid  
Clock High to Output Low-Z  
Clock High to Output High-Z  
Output Enable to Output Valid  
Output Enable to Output Low-Z  
Output Disable to Output High-Z  
Address Setup Time  
Read/WriteSetupTime  
Chip Enable Setup Time  
Clock Enable Setup Time  
Address Advance Setup Time  
Data Setup Time  
2.5  
2.5  
2.5  
2.5  
(2,3)  
tKQLZ  
(2,3)  
tKQHZ  
tOEQ  
(2,3)  
tOELZ  
0
0
(2,3)  
tOEHZ  
tAS  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
0.5  
0.5  
0.5  
0.5  
0.5  
0.5  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
0.5  
0.5  
0.5  
0.5  
0.5  
0.5  
tWS  
tCES  
tSE  
tADVS  
tDS  
tAH  
Address Hold Time  
tHE  
Clock Enable Hold Time  
Write Hold Time  
tWH  
tCEH  
tADVH  
tDH  
Chip Enable Hold Time  
Address Advance Hold Time  
Data Hold Time  
tPDS  
tPUS  
ZZ High to Power Down  
ZZ Low to Power Down  
2
2
Notes:  
1. Configuration signal MODE is static and must not change during normal operation.  
2. Guaranteed but not 100% tested. This parameter is periodically sampled.  
3. Tested with load in Figure 2.  
16  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
SLEEPMODEELECTRICALCHARACTERISTICS  
Symbol  
ISB2  
Parameter  
Conditions  
Min.  
Max.  
60  
Unit  
mA  
CurrentduringSLEEPMODE  
ZZ active to input ignored  
ZZ inactive to input sampled  
ZZ active to SLEEP current  
ZZ inactive to exit SLEEP current  
ZZ VIH  
tPDS  
2
cycle  
cycle  
cycle  
ns  
tPUS  
2
2
0
tZZI  
tRZZI  
SLEEP MODE TIMING  
CLK  
t
PDS  
t
ZZ setup cycle  
ZZ recovPeUryS cycle  
ZZ  
t
ZZI  
Isupply  
All Inputs  
I
SB2  
t
RZZI  
Deselect or Read Only  
Deselect or Read Only  
(except ZZ)  
Normal  
operation  
cycle  
Outputs  
(Q)  
High-Z  
Don't Care  
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Rev. B  
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08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
READ CYCLE TIMING  
tKH  
tKL  
CLK  
tKC  
tADVS tADVH  
ADV  
tAS tAH  
Address  
A1  
A2  
A3  
tWS  
tWH  
WRITE  
CKE  
tSE tHE  
tCES  
t
CEH  
CE  
OE  
t
DS  
KQ  
t
OEQ  
t
OEHZ  
t
t
KQHZ  
Q3-4  
tOEHZ  
Data Out  
Q1-1  
Q2-1  
Q2-2  
Q2-3  
Q2-4  
Q3-1  
Q3-2  
Q3-3  
NOTES: WRITE = L means WE = L and BWx = L  
WE = L and BWX = L  
Don't Care  
Undefined  
CE = L means CE1 = L, CE2 = H and CE2 = L  
CE = H means CE1 = H, or CE1 = L and CE2 = H, or CE1 = L and CE2 = L  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
WRITE CYCLE TIMING  
tKH  
tKL  
CLK  
tKC  
ADV  
Address  
WRITE  
CKE  
A1  
A2  
A3  
tSE  
tHE  
CE  
OE  
t
DS  
tDH  
Data In  
Data Out  
D1-1  
D2-1  
D2-2  
D2-4  
D3-1  
D3-2  
D3-3  
D3-4  
D2-3  
tOEHZ  
Q0-4  
NOTES: WRITE = L means WE = L and BWx = L  
WE = L and BWX = L  
Don't Care  
Undefined  
CE = L means CE1 = L, CE2 = H and CE2 = L  
CE = H means CE1 = H, or CE1 = L and CE2 = H, or CE1 = L and CE2 = L  
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Rev. B  
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08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
SINGLE READ/WRITE CYCLE TIMING  
tKH  
tKL  
CLK  
t
SE tHE  
tKC  
CKE  
Address  
WRITE  
CE  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
A8  
A9  
ADV  
OE  
tOEQ  
t
OELZ  
Data Out  
Data In  
Q1  
Q3  
Q4  
Q6  
Q7  
tDS tDH  
D2  
D5  
NOTES: WRITE = L means WE = L and BWx = L  
CE = L means CE1 = L, CE2 = H and CE2 = L  
CE = H means CE1 = H, or CE1 = L and CE2 = H, or CE1 = L and CE2 = L  
Don't Care  
Undefined  
20  
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Rev. B  
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IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
CKE OPERATION TIMING  
t
KH  
tKL  
CLK  
t
SE tHE  
t
KC  
CKE  
Address  
WRITE  
CE  
A1  
A2  
A3  
A4  
A5  
A6  
ADV  
OE  
t
KQ  
t
KQHZ  
t
KQLZ  
Q4  
Data Out  
Data In  
Q1  
Q3  
t
DS  
t
DH  
D5  
D2  
NOTES: WRITE = L means WE = L and BWx = L  
CE = L means CE1 = L, CE2 = H and CE2 = L  
Don't Care  
Undefined  
CE = H means CE1 = H, or CE1 = L and CE2 = H, or CE1 = L and CE2 = L  
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Rev. B  
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IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
CE OPERATION TIMING  
t
KH  
tKL  
CLK  
t
SE tHE  
t
KC  
CKE  
A1  
A2  
A3  
A4  
A5  
Address  
WRITE  
CE  
ADV  
OE  
t
OEQ  
t
KQHZ  
t
KQ  
t
OELZ  
tKQLZ  
Q1  
Q2  
Q4  
Data Out  
Data In  
t
DS  
tDH  
D3  
D5  
Don't Care  
Undefined  
NOTES: WRITE = L means WE = L and BWx = L  
CE = L means CE1 = L, CE2 = H and CE2 = L  
CE = H means CE1 = H, or CE1 = L and CE2 = H, or CE1 = L and CE2 = L  
22  
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Rev. B  
08/26/05  
IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
®
ISSI  
IEEE1149.1SERIALBOUNDARYSCAN(JTAG)  
TEST ACCESS PORT (TAP) - TEST CLOCK  
TheIS61NLFXand IS61NVFXhaveaserialboundaryscan  
Test Access Port (TAP) in the PBGA package only. (Not  
available in TQFP package.) This port operates in accor-  
dance with IEEE Standard 1149.1-1900, but does not  
include all functions required for full 1149.1 compliance.  
These functions from the IEEE specification are excluded  
because they place added delay in the critical speed path  
oftheSRAM.TheTAPcontrolleroperatesinamannerthat  
does not conflict with the performance of other devices  
using1149.1fullycompliantTAPs.TheTAPoperatesusing  
JEDEC standard 2.5V I/O logic levels.  
The test clock is only used with the TAP controller. All  
inputs are captured on the rising edge of TCK and outputs  
are driven from the falling edge of TCK.  
TEST MODE SELECT (TMS)  
The TMS input is used to send commands to the TAP  
controller and is sampled on the rising edge of TCK. This  
pin may be left disconnected if the TAP is not used. The  
pin is internally pulled up, resulting in a logic HIGH level.  
TEST DATA-IN (TDI)  
The TDI pin is used to serially input information to the  
registers and can be connected to the input of any  
register. The register between TDI and TDO is chosen by  
the instruction loaded into the TAP instruction register.  
For information on instruction register loading, see the  
TAP Controller State Diagram. TDI is internally pulled up  
and can be disconnected if the TAP is unused in an  
application. TDI is connected to the Most Significant Bit  
(MSB) on any register.  
DISABLING THE JTAG FEATURE  
TheSRAMcanoperatewithoutusingtheJTAGfeature.To  
disable the TAP controller, TCK must be tied LOW (VSS) to  
prevent clocking of the device. TDI and TMS are internally  
pulled up and may be disconnected. They may alternately  
beconnectedtoVDD throughapull-upresistor.TDOshould  
beleftdisconnected. Onpower-up, thedevicewillstartina  
resetstatewhichwillnotinterferewiththedeviceoperation.  
TAP CONTROLLER BLOCK DIAGRAM  
0
Bypass Register  
2
1
0
Instruction Register  
TDI  
Selection Circuitry  
Selection Circuitry  
TDO  
31 30 29 . . .  
2
2
1
1
0
0
Identification Register  
x
. . . . .  
Boundary Scan Register*  
TCK  
TMS  
TAP CONTROLLER  
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ISSI  
TEST DATA OUT (TDO)  
The TDO output pin is used to serially clock data-out from  
theregisters.Theoutputisactivedependingonthecurrent  
state of the TAP state machine (see TAP Controller State  
Diagram). The output changes on the falling edge of TCK  
and TDO is connected to the Least Significant Bit (LSB) of  
any register.  
is set LOW (VSS) when the BYPASS instruction is ex-  
ecuted.  
Boundary Scan Register  
The boundary scan register is connected to all input and  
output pins on the SRAM. Several no connect(NC) pins are  
also included in the scan register to reserve pins for higher  
density devices. The x36 configuration has a 75-bit-long  
register and the x18 configuration also has a 75-bit-long  
register. The boundary scan register is loaded with the  
contents of the RAM Input and Output ring when the TAP  
controller is in the Capture-DR state and then placed  
between the TDI and TDO pins when the controller is moved  
to the Shift-DR state. The EXTEST, SAMPLE/PRELOAD  
and SAMPLE-Z instructions can be used to capture the  
contents of the Input and Output ring.  
PERFORMING A TAP RESET  
A Reset is performed by forcing TMS HIGH (VDD) for five  
rising edges of TCK. RESET may be performed while the  
SRAM is operating and does not affect its operation. At  
power-up, the TAP is internally reset to ensure that TDO  
comes up in a high-Z state.  
TAP REGISTERS  
Registers are connected between the TDI and TDO pins  
andallowdatatobescannedintoandoutoftheSRAMtest  
circuitry. Only one register can be selected at a time  
through the instruction registers. Data is serially loaded  
intotheTDIpinontherisingedgeofTCKandoutputonthe  
TDO pin on the falling edge of TCK.  
TheBoundaryScanOrdertablesshowtheorderinwhichthe  
bits are connected. Each bit corresponds to one of the  
bumps on the SRAM package. The MSB of the register is  
connected to TDI, and the LSB is connected to TDO.  
Scan Register Sizes  
Instruction Register  
Three-bit instructions can be serially loaded into the  
instruction register. This register is loaded when it is  
placed between the TDI andTDO pins. (See TAP Controller  
Block Diagram) At power-up, the instruction register is  
loaded with the IDCODE instruction. It is also loaded with  
the IDCODE instruction if the controller is placed in a reset  
state as previously described.  
Register  
Name  
Bit Size  
(x18)  
Bit Size  
(x36)  
Instruction  
Bypass  
3
1
3
1
ID  
32  
75  
32  
75  
BoundaryScan  
When the TAP controller is in the CaptureIR state, the two  
least significant bits are loaded with a binary “01” pattern  
to allow for fault isolation of the board level serial test path.  
Identification (ID) Register  
Bypass Register  
The ID register is loaded with a vendor-specific, 32-bit  
code during the Capture-DR state when the IDCODE  
commandisloadedtotheinstructionregister.TheIDCODE  
is hardwired into the SRAM and can be shifted out when  
the TAP controller is in the Shift-DR state. The ID register  
has vendor code and other information described in the  
Identification Register Definitions table.  
To save time when serially shifting data through registers,  
it is sometimes advantageous to skip certain states. The  
bypass register is a single-bit register that can be placed  
between TDI and TDO pins. This allows data to be shifted  
through the SRAM with minimal delay. The bypass register  
IDENTIFICATION REGISTER DEFINITIONS  
InstructionField  
Description  
256K x 36  
xxxx  
512K x 18  
xxxx  
RevisionNumber (31:28)  
DeviceDepth (27:23)  
DeviceWidth (22:18)  
ISSI Device ID (17:12)  
ISSI JEDEC ID (11:1)  
IDRegisterPresence (0)  
Reservedforversionnumber.  
Defines depth of SRAM. 256K or 512K  
Defines Width of the SRAM. x36 or x18  
Reserved for future use.  
00111  
01000  
00100  
00011  
xxxxx  
xxxxx  
Allows unique identification of SRAM vendor.  
Indicate the presence of an ID register.  
00011010101  
1
00011010101  
1
24  
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Rev. B  
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IS61NLF25636A/IS61NVF25636A  
IS61NLF51218A/IS61NVF51218A  
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ISSI  
TAP INSTRUCTION SET  
SAMPLE/PRELOAD  
Eight instructions are possible with the three-bit instruction  
register and all combinations are listed in the Instruction  
Code table. Three instructions are listed as RESERVED  
and should not be used and the other five instructions are  
described below. The TAP controller used in this SRAM is  
not fully compliant with the 1149.1 convention because  
some mandatory instructions are not fully implemented.  
The TAP controller cannot be used to load address, data or  
control signals and cannot preload the Input or Output  
buffers. The SRAM does not implement the 1149.1 com-  
mands EXTEST or INTEST or the PRELOAD portion of  
SAMPLE/PRELOAD; instead it performs a capture of the  
Inputs and Output ring when these instructions are executed.  
Instructions are loaded into the TAP controller during the  
Shift-IR state when the instruction register is placed  
between TDI and TDO. During this state, instructions are  
shifted from the instruction register through the TDI and  
TDO pins. To execute an instruction once it is shifted in,  
the TAP controller must be moved into the Update-IR  
state.  
SAMPLE/PRELOAD is a 1149.1 mandatory instruction.  
The PRELOAD portion of this instruction is not imple-  
mented, so the TAP controller is not fully 1149.1 compli-  
ant. When the SAMPLE/PRELOAD instruction is loaded  
to the instruction register and the TAP controller is in the  
Capture-DR state, a snapshot of data on the inputs and  
output pins is captured in the boundary scan register.  
It is important to realize that the TAP controller clock  
operates at a frequency up to 10 MHz, while the SRAM  
clock runs more than an order of magnitude faster.  
Because of the clock frequency differences, it is possible  
that during the Capture-DR state, an input or output will  
under-go a transition. The TAP may attempt a signal  
capture while in transition (metastable state). The device  
will not be harmed, but there is no guarantee of the value  
that will be captured or repeatable results.  
To guarantee that the boundary scan register will capture  
the correct signal value, the SRAM signal must be  
stabilized long enough to meet the TAP controller’s  
capture set-up plus hold times (tCS and tCH). To insure that  
the SRAM clock input is captured correctly, designs need  
a way to stop (or slow) the clock during a SAMPLE/  
PRELOAD instruction. If this is not an issue, it is possible  
to capture all other signals and simply ignore the value of  
the CLK captured in the boundary scan register.  
EXTEST  
EXTEST is a mandatory 1149.1 instruction which is to be  
executed whenever the instruction register is loaded with  
all 0s. Because EXTEST is not implemented in the TAP  
controller, this device is not 1149.1 standard compliant.  
The TAP controller recognizes an all-0 instruction. When  
an EXTEST instruction is loaded into the instruction  
register, the SRAM responds as if a SAMPLE/PRELOAD  
instruction has been loaded. There is a difference between  
the instructions, unlike the SAMPLE/PRELOAD instruction,  
EXTEST places the SRAM outputs in a High-Z state.  
Once the data is captured, it is possible to shift out the data  
by putting the TAP into the Shift-DR state. This places the  
boundary scan register between the TDI and TDO pins.  
Note that since the PRELOAD part of the command is not  
implemented,puttingtheTAPintotheUpdatetotheUpdate-DR  
state while performing a SAMPLE/PRELOAD instruction  
will have the same effect as the Pause-DR command.  
IDCODE  
BYPASS  
The IDCODE instruction causes a vendor-specific, 32-bit  
code to be loaded into the instruction register. It also  
places the instruction register between the TDI and TDO  
pins and allows the IDCODE to be shifted out of the device  
when the TAP controller enters the Shift-DR state. The  
IDCODE instruction is loaded into the instruction register  
upon power-up or whenever the TAP controller is given a  
test logic reset state.  
When the BYPASS instruction is loaded in the instruction  
register and the TAP is placed in a Shift-DR state, the  
bypass register is placed between the TDI and TDO pins.  
The advantage of the BYPASS instruction is that it  
shortens the boundary scan path when multiple devices  
are connected together on a board.  
RESERVED  
These instructions are not implemented but are reserved  
for future use. Do not use these instructions.  
SAMPLE-Z  
The SAMPLE-Z instruction causes the boundary scan  
register to be connected between the TDI and TDO pins  
when the TAP controller is in a Shift-DR state. It also  
places all SRAM outputs into a High-Z state.  
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ISSI  
INSTRUCTION CODES  
Code  
Instruction  
Description  
000  
EXTEST  
Captures the Input/Output ring contents. Places the boundary scan register between  
the TDI and TDO. Forces all SRAM outputs to High-Z state. This  
instruction is not 1149.1 compliant.  
001  
010  
IDCODE  
Loads the ID register with the vendor ID code and places the register between  
TDI and TDO. This operation does not affect SRAM operation.  
SAMPLE-Z  
Captures the Input/Output contents. Places the boundary scan register between TDI  
and TDO. Forces all SRAM output drivers to a High-Z state.  
011  
100  
RESERVED  
Do Not Use: This instruction is reserved for future use.  
SAMPLE/PRELOAD  
Captures the Input/Output ring contents. Places the boundary scan register between  
TDI and TDO. Does not affect the SRAM operation. This instruction does not implement  
1149.1 preload function and is therefore not 1149.1 compliant.  
101  
110  
111  
RESERVED  
RESERVED  
BYPASS  
Do Not Use: This instruction is reserved for future use.  
Do Not Use: This instruction is reserved for future use.  
Places the bypass register between TDI and TDO. This operation does not  
affect SRAM operation.  
TAP CONTROLLER STATE DIAGRAM  
Test Logic Reset  
1
0
1
1
1
Run Test/Idle  
Select DR  
0
Select IR  
0
0
1
1
Capture DR  
0
Capture IR  
0
Shift DR  
1
Shift IR  
1
0
0
1
1
Exit1 DR  
0
Exit1 IR  
0
Pause DR  
1
Pause IR  
1
0
0
Exit2 DR  
1
Exit2 IR  
1
0
1
0
1
Update DR  
0
Update IR  
0
26  
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ISSI  
TAP Electrical Characteristics Over the Operating Range(1,2)  
Symbol  
VOH1  
VOH2  
VOL1  
VOL2  
VIH  
Parameter  
Test Conditions  
IOH = –2.0 mA  
IOH = –100 µA  
IOL = 2.0 mA  
Min.  
1.7  
2.1  
Max.  
Units  
V
OutputHIGHVoltage  
OutputHIGHVoltage  
OutputLOWVoltage  
OutputLOWVoltage  
Input HIGH Voltage  
Input LOW Voltage  
InputLeakageCurrent  
V
0.7  
V
IOL = 100 µA  
0.2  
V
1.7  
–0.3  
–10  
VDD +0.3  
0.7  
V
VIL  
V
IX  
VSS V I VDDQ  
10  
µA  
Notes:  
1. All Voltage referenced to Ground.  
2. Overshoot: VIH (AC) VDD +1.5V for t tTCYC/2,  
Undershoot: VIL (AC) 0.5V for t tTCYC/2,  
Power-up: VIH < 2.6V and VDD < 2.4V and VDDQ < 1.4V for t < 200 ms.  
TAP AC ELECTRICAL CHARACTERISTICS(1,2) (OVER OPERATING RANGE)  
Symbol Parameter  
Min.  
100  
Max.  
10  
20  
Unit  
ns  
tTCYC  
fTF  
TCK Clock cycle time  
TCK Clock frequency  
MHz  
ns  
tTH  
TCK Clock HIGH  
40  
40  
10  
10  
10  
10  
10  
10  
tTL  
TCK Clock LOW  
ns  
tTMSS  
tTDIS  
tCS  
TMS setup to TCK Clock Rise  
TDI setup to TCK Clock Rise  
Capture setup to TCK Rise  
TMS hold after TCK Clock Rise  
TDI Hold after Clock Rise  
Capture hold after Clock Rise  
TCK LOW to TDO valid  
TCK LOW to TDO invalid  
ns  
ns  
ns  
tTMSH  
tTDIH  
tCH  
ns  
ns  
ns  
tTDOV  
ns  
tTDOX  
0
ns  
Notes:  
1. tCS and tCH refer to the set-up and hold time requirements of latching data from the boundary scan register.  
2. Test conditions are specified using the load in TAP AC test conditions. tR/tF = 1 ns.  
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ISSI  
TAP AC TEST CONDITIONS (2.5V/3.3V)  
TAP Output Load Equivalent  
Input pulse levels  
0 to 2.5V/0 to 3.0V  
1ns  
Input rise and fall times  
Input timing reference levels  
Output reference levels  
1.25V/1.5V  
1.25V/1.5V  
50Ω  
Vtrig  
Test load termination supply voltage  
Vtrig  
1.25V/1.5V  
1.25V/1.5V  
TDO  
20 pF  
GND  
Z0 = 50Ω  
TAP TIMING  
1
2
3
4
5
6
t
THTH  
t
TLTH  
TCK  
TMS  
t
THTL  
t
t
MVTH THMX  
t
DVTH  
t
THDX  
TDI  
t
TLOV  
TDO  
t
TLOX  
DON'T CARE  
UNDEFINED  
28  
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ISSI  
165 PBGA BOUNDARY SCAN ORDER (x 36)  
Signal Bump  
Signal Bump  
Signal  
Name  
Bump  
ID  
Signal Bump  
Bit # Name  
ID  
Bit #  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
Name  
DQb  
DQb  
DQb  
DQb  
DQb  
DQb  
DQb  
DQb  
DQb  
NC  
ID  
Bit #  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
Bit #  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
Name  
DQd  
DQd  
DQd  
DQd  
DQd  
DQd  
DQd  
DQd  
DQd  
A
ID  
1
2
MODE  
NC  
NC  
A
1R  
11G  
11F  
11E  
11D  
10G  
10F  
10E  
10D  
11C  
11A  
10A  
10B  
9A  
NC  
CE2  
BWa  
BWb  
BWc  
BWd  
CE2  
CE  
1A  
6A  
5B  
5A  
4A  
4B  
3B  
3A  
2A  
2B  
1B  
1C  
1D  
1E  
1F  
1G  
2D  
2E  
2F  
2G  
1J  
6N  
1K  
1L  
3
11P  
8P  
4
1M  
2J  
5
A
8R  
6
A
9R  
2K  
2L  
7
A
9P  
8
A
10P  
10R  
11R  
11H  
11N  
11M  
11L  
11K  
11J  
10M  
10L  
10K  
10J  
2M  
1N  
3P  
3R  
4R  
4P  
6P  
6R  
9
A
A
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
A
A
ZZ  
A
NC  
A
DQa  
DQa  
DQa  
DQa  
DQa  
DQa  
DQa  
DQa  
DQa  
A
DQc  
DQc  
DQc  
DQc  
DQc  
DQc  
DQc  
DQc  
DQc  
A
A
A
NC  
9B  
A1  
ADV  
OE  
8A  
A0  
8B  
CKE  
WE  
CLK  
NC  
7A  
7B  
6B  
11B  
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ISSI  
165 PBGA BOUNDARY SCAN ORDER (x 18)  
Signal Bump  
Signal Bump  
Signal  
Name  
Bump  
ID  
Signal Bump  
Bit # Name  
ID  
Bit #  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
Name  
DQa  
DQa  
DQa  
DQa  
DQa  
NC  
ID  
Bit #  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
Bit #  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
Name  
DQb  
DQb  
DQb  
DQb  
DQb  
NC  
NC  
NC  
NC  
A
ID  
1
2
MODE  
NC  
NC  
A
1R  
11G  
11F  
11E  
11D  
11C  
10F  
10E  
10D  
10G  
11A  
10A  
10B  
9A  
NC  
CE2  
BWa  
NC  
1A  
6A  
5B  
5A  
4A  
4B  
3B  
3A  
2A  
2B  
1B  
1C  
1D  
1E  
1F  
1G  
2D  
2E  
2F  
2G  
1J  
6N  
1K  
1L  
3
11P  
8P  
4
1M  
1N  
2K  
2L  
5
A
8R  
BWb  
NC  
6
A
9R  
7
A
9P  
NC  
CE2  
CE  
8
A
10P  
10R  
11R  
11H  
11N  
11M  
11L  
11K  
11J  
10M  
10L  
10K  
10J  
NC  
2M  
2J  
9
A
NC  
A
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
A
A
A
3P  
3R  
4R  
4P  
6P  
6R  
ZZ  
NC  
NC  
NC  
NC  
NC  
DQa  
DQa  
DQa  
DQa  
A
NC  
A
A
NC  
A
A
NC  
A
NC  
9B  
NC  
A1  
ADV  
OE  
CKE  
WE  
CLK  
NC  
8A  
NC  
A0  
8B  
NC  
7A  
DQb  
DQb  
DQb  
DQb  
7B  
6B  
11B  
30  
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ISSI  
119 BOUNDARY SCAN ORDER (256K X 36)  
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ISSI  
119 BOUNDARY SCAN ORDER (512K X 18)  
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ISSI  
ORDERING INFORMATION (VDD = 3.3V/VDDQ = 2.5V/3.3V)  
Commercial Range: 0°C to +70°C  
AccessTime  
OrderPartNumber  
256Kx36  
Package  
6.5  
IS61NLF25636A-6.5TQ  
IS61NLF25636A-6.5B2  
100 TQFP  
119 PBGA  
IS61NLF25636A-6.5B3  
165 PBGA  
7.5  
IS61NLF25636A-7.5TQ  
IS61NLF25636A-7.5B2  
100 TQFP  
119 PBGA  
IS61NLF25636A-7.5B3  
165 PBGA  
512Kx18  
6.5  
7.5  
IS61NLF51218A-6.5TQ  
IS61NLF51218A-6.5B2  
100 TQFP  
119 PBGA  
IS61NLF51218A-6.5B3  
165 PBGA  
IS61NLF51218A-7.5TQ  
IS61NLF51218A-7.5B2  
100 TQFP  
119 PBGA  
IS61NLF51218A-7.5B3  
165 PBGA  
Industrial Range: -40°C to +85°C  
AccessTime  
OrderPartNumber  
256Kx36  
Package  
6.5  
7.5  
IS61NLF25636A-6.5TQI  
IS61NLF25636A-6.5B2I  
100 TQFP  
119 PBGA  
IS61NLF25636A-6.5B3I  
165 PBGA  
IS61NLF25636A-7.5TQI  
IS61NLF25636A-7.5TQLI  
IS61NLF25636A-7.5B2I  
100 TQFP  
100TQFP,Lead-free  
119 PBGA  
IS61NLF25636A-7.5B3I  
165 PBGA  
512Kx18  
6.5  
7.5  
IS61NLF51218A-6.5TQI  
IS61NLF51218A-6.5B2I  
100 TQFP  
119 PBGA  
IS61NLF51218A-6.5B3I  
165 PBGA  
IS61NLF51218A-7.5TQI  
IS61NLF51218A-7.5TQLI  
IS61NLF51218A-7.5B2I  
100 TQFP  
100TQFP,Lead-free  
119 PBGA  
IS61NLF51218A-7.5B3I  
165 PBGA  
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ISSI  
ORDERING INFORMATION (VDD = 2.5V/VDDQ = 2.5V)  
Commercial Range: 0°C to +70°C  
AccessTime  
OrderPartNumber  
256Kx36  
Package  
6.5  
IS61NVF25636A-6.5TQ  
IS61NVF25636A-6.5B2  
100 TQFP  
119 PBGA  
IS61NVF25636A-6.5B3  
165 PBGA  
7.5  
IS61NVF25636A-7.5TQ  
IS61NVF25636A-7.5B2  
100 TQFP  
119 PBGA  
IS61NVF25636A-7.5B3  
165 PBGA  
512Kx18  
6.5  
7.5  
IS61NVF51218A-6.5TQ  
IS61NVF51218A-6.5B2  
100 TQFP  
119 PBGA  
IS61NVF51218A-6.5B3  
165 PBGA  
IS61NVF51218A-7.5TQ  
IS61NVF51218A-7.5B2  
100 TQFP  
119 PBGA  
IS61NVF51218A-7.5B3  
165 PBGA  
Industrial Range: -40°C to +85°C  
AccessTime  
OrderPartNumber  
256Kx36  
Package  
6.5  
7.5  
IS61NVF25636A-6.5TQI  
IS61NVF25636A-6.5B2I  
100 TQFP  
119 PBGA  
IS61NVF25636A-6.5B3I  
165 PBGA  
IS61NVF25636A-7.5TQI  
IS61NVF25636A-7.5B2I  
100 TQFP  
119 PBGA  
IS61NVF25636A-7.5B3I  
165 PBGA  
512Kx18  
6.5  
7.5  
IS61NVF51218A-6.5TQI  
IS61NVF51218A-6.5B2I  
100 TQFP  
119 PBGA  
IS61NVF51218A-6.5B3I  
165 PBGA  
IS61NVF51218A-7.5TQI  
IS61NVF51218A-7.5B2I  
100 TQFP  
119 PBGA  
IS61NVF51218A-7.5B3I  
165 PBGA  
34  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
08/26/05  
®
PACKAGING INFORMATION  
ISSI  
Plastic Ball Grid Array  
Package Code: B (119-pin)  
φ
b (119X)  
E
A
7
6
5
4
3
2
1
A
B
C
D
E
F
30ϒ  
G
H
J
D
D2  
D1  
K
L
M
N
P
R
T
e
U
A2  
E1  
A1  
A3  
E2  
SEATING PLANE  
A4  
MILLIMETERS  
INCHES  
Min.  
Sym. Min.  
Max.  
Max.  
N0.  
Leads  
Notes:  
119  
1.Controllingdimension:millimeters,unlessotherwisespecified.  
2.BSC=Basicleadspacingbetweencenters.  
3.DimensionsD1andEdonotincludemoldflashprotrusionand  
shouldbemeasuredfromthebottomofthepackage.  
4.Formedleadsshallbeplanarwithrespecttooneanotherwithin  
0.004inchesattheseatingplane.  
A
2.41  
0.70  
1.00  
1.70  
0.095  
0.028  
0.039  
0.067  
A1  
A2  
A3  
A4  
b
0.50  
0.80  
1.30  
0.020  
0.032  
0.051  
0.56 BSC  
0.022 BSC  
0.60  
0.90  
0.024  
0.858  
0.035  
0.874  
D
21.80  
22.20  
D1  
D2  
E
20.32 BSC  
0.800 BSC  
19.40  
13.80  
19.60  
14.20  
0.764  
0.543  
0.772  
0.559  
E1  
E2  
e
7.62 BSC  
0.300 BSC  
11.90  
12.10  
0.469  
0.476  
1.27 BSC  
0.050 BSC  
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time  
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to  
obtain the latest version of this device specification before relying on any published information and before placing orders for products.  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. B  
02/12/03  
®
PACKAGING INFORMATION  
Ball Grid Array  
ISSI  
Package Code: B (165-pin)  
BOTTOM VIEW  
A1 CORNER  
TOP VIEW  
A1 CORNER  
φ b (165X)  
11 10  
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10 11  
A
B
C
D
E
F
A
B
C
D
E
F
e
G
H
J
G
H
J
D
D1  
K
L
K
L
M
N
P
R
M
N
P
R
e
E1  
E
A2  
A
A1  
BGA - 13mm x 15mm  
Notes:  
MILLIMETERS  
INCHES  
1. Controlling dimensions are in millimeters.  
Sym. Min. Nom. Max.  
Min. Nom. Max.  
165  
N0.  
Leads  
165  
A
0.25  
1.20  
0.40  
0.047  
0.010 0.013 0.016  
0.031  
A1  
A2  
D
0.33  
0.79  
14.90 15.00 15.10  
13.90 14.00 14.10  
12.90 13.00 13.10  
9.90 10.00 10.10  
0.587 0.591 0.594  
0.547 0.551 0.555  
0.508 0.512 0.516  
0.390 0.394 0.398  
D1  
E
E1  
e
1.00  
0.45  
0.039  
b
0.40  
0.50  
0.016 0.018 0.020  
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time  
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to  
obtain the latest version of this device specification before relying on any published information and before placing orders for products.  
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774  
Rev. A  
06/11/03  
®
ISSI  
PACKAGING INFORMATION  
TQFP (Thin Quad Flat Pack Package)  
Package Code: TQ  
D
D1  
E
E1  
N
L1  
L
C
1
e
SEATING  
PLANE  
A2  
A
b
A1  
Notes:  
Thin Quad Flat Pack (TQ)  
Inches Millimeters  
1. All dimensioning and  
tolerancing conforms to  
ANSI Y14.5M-1982.  
Millimeters  
Min Max  
Inches  
Min Max  
Symbol  
Ref. Std.  
Min  
Max  
Min  
Max  
2. Dimensions D1 and E1 do  
not include mold protrusions.  
Allowable protrusion is 0.25  
mm per side. D1 and E1 do  
include mold mismatch and  
are determined at datum  
plane -H-.  
No. Leads (N)  
100  
128  
A
A1  
A2  
b
D
D1  
E
1.60  
0.15  
1.45  
0.38  
0.063  
1.60  
0.15  
1.45  
0.27  
0.063  
0.05  
1.35  
0.22  
0.002 0.006  
0.053 0.057  
0.009 0.015  
0.862 0.870  
0.783 0.791  
0.626 0.634  
0.547 0.555  
0.026 BSC  
0.05  
1.35  
0.17  
21.80 22.20  
19.90 20.10  
15.80 16.20  
13.90 14.10  
0.50 BSC  
0.002 0.006  
0.053 0.057  
0.007 0.011  
0.858 0.874  
0.783 0.791  
0.622 0.638  
0.547 0.555  
0.020 BSC  
3. Controlling dimension:  
millimeters.  
21.90 22.10  
19.90 20.10  
15.90 16.10  
13.90 14.10  
0.65 BSC  
E1  
e
L
0.45  
1.00 REF.  
0o 7o  
0.75  
0.018 0.030  
0.45  
0.75  
0.018 0.030  
L1  
C
0.039 REF.  
1.00 REF.  
0o  
0.039 REF.  
0o  
7o  
7o  
0o  
7o  
Integrated Silicon Solution, Inc. — 1-800-379-4774  
PK13197LQ Rev.D 05/08/03  

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