GSI GS881E36BD-200

GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
100-Pin TQFP & 165-bump BGA
Commercial Temp
Industrial Temp
250 MHz–150 MHz
2.5 V or 3.3 V VDD
2.5 V or 3.3 V I/O
512K x 18, 256K x 32, 256K x 36
9Mb Sync Burst SRAMs
Features
• FT pin for user-configurable flow through or pipeline
operation
• Dual Cycle Deselect (DCD) operation
• IEEE 1149.1 JTAG-compatible Boundary Scan
• 2.5 V or 3.3 V +10%/–10% core power supply
• 2.5 V or 3.3 V I/O supply
• LBO pin for Linear or Interleaved Burst mode
• Internal input resistors on mode pins allow floating mode pins
• Default to Interleaved Pipeline mode
• Byte Write (BW) and/or Global Write (GW) operation
• Internal self-timed write cycle
• Automatic power-down for portable applications
• JEDEC-standard 100-lead TQFP and 165-bump BGA
packages
• Pb-Free 100-lead TQFP and 165-bump BGA packages
available
Functional Description
Applications
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
is a 9,437,184-bit high performance synchronous SRAM with
a 2-bit burst address counter. Although of a type originally
developed for Level 2 Cache applications supporting high
performance CPUs, the device now finds application in
synchronous SRAM applications, ranging from DSP main
store to networking chip set support.
Controls
Addresses, data I/Os, chip enable (E1), address burst control
inputs (ADSP, ADSC, ADV) and write control inputs (Bx,
BW, GW) are synchronous and are controlled by a positiveedge-triggered clock input (CK). Output enable (G) and power
down control (ZZ) are asynchronous inputs. Burst cycles can
be initiated with either ADSP or ADSC inputs. In Burst mode,
subsequent burst addresses are generated internally and are
controlled by ADV. The burst address counter may be
configured to count in either linear or interleave order with the
Linear Burst Order (LBO) input. The Burst function need not
be used. New addresses can be loaded on every cycle with no
degradation of chip performance.
Flow Through/Pipeline Reads
The function of the Data Output register can be controlled by
the user via the FT mode pin (Pin 14). Holding the FT mode
pin low places the RAM in Flow Through mode, causing
output data to bypass the Data Output Register. Holding FT
high places the RAM in Pipeline mode, activating the risingedge-triggered Data Output Register.
DCD Pipelined Reads
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
is a DCD (Dual Cycle Deselect) pipelined synchronous
SRAM. SCD (Single Cycle Deselect) versions are also
available. DCD SRAMs pipeline disable commands to the
same degree as read commands. DCD RAMs hold the deselect
command for one full cycle and then begin turning off their
outputs just after the second rising edge of clock.
Byte Write and Global Write
Byte write operation is performed by using Byte Write enable
(BW) input combined with one or more individual byte write
signals (Bx). In addition, Global Write (GW) is available for
writing all bytes at one time, regardless of the Byte Write
control inputs.
Sleep Mode
Low power (Sleep mode) is attained through the assertion
(High) of the ZZ signal, or by stopping the clock (CK).
Memory data is retained during Sleep mode.
Core and Interface Voltages
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
operates on a 2.5 V or 3.3 V power supply. All input are 3.3 V
and 2.5 V compatible. Separate output power (VDDQ) pins are
used to decouple output noise from the internal circuits and are
3.3 V and 2.5 V compatible.
Paramter Synopsis
Pipeline
3-1-1-1
Flow Through
2-1-1-1
Rev: 1.04 3/2005
-333
-300
-250
-200
-150
Unit
tKQ
tCycle
2.5
3.0
2.5
3.3
2.5
4.0
3.0
5.0
3.8
6.7
ns
ns
Curr (x18)
Curr (x32/x36)
250
290
230
265
200
230
170
195
140
160
mA
mA
tKQ
tCycle
4.5
4.5
5.0
5.0
5.5
5.5
6.5
6.5
7.5
7.5
ns
ns
Curr (x18)
Curr (x32/x36)
200
230
185
210
160
185
140
160
128
145
mA
mA
1/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
A
A
E1
E2
NC
NC
BB
BA
A
VDD
VSS
CK
GW
BW
G
ADSC
ADSP
ADV
A
A
GS881E18B 100-Pin TQFP Pinout (Package T)
VDDQ
LBO
A
A
A
A
VSS
NC
NC
DQB
DQB
VSS
VDDQ
DQB
DQB
FT
VDD
NC
VSS
DQB
DQB
VDDQ
VSS
DQB
DQB
DQPB
NC
VSS
VDDQ
NC
NC
NC
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
80
2
79
3
78
4
77
5
76
6
75
7
74
8
73
9
72
512K x 18
10
71
Top View
11
70
12
69
13
68
14
67
15
66
16
65
17
64
18
63
19
62
20
61
21
60
22
59
23
58
24
57
25
56
26
55
27
54
28
53
29
52
30
51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Rev: 1.04 3/2005
A
NC
NC
VDDQ
VSS
NC
DQPA
DQA
DQA
VSS
VDDQ
DQA
DQA
VSS
NC
VDD
ZZ
DQA
DQA
VDDQ
VSS
DQA
DQA
NC
NC
VSS
VDDQ
NC
NC
NC
A1
A0
TMS
TDI
VSS
VDD
TDO
TCK
A
A
A
A
A
A
A
NC
NC
NC
2/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
A
A
E1
E2
BD
BC
BB
BA
A
VDD
VSS
CK
GW
BW
G
ADSC
ADSP
ADV
A
A
GS881E32B 100-Pin TQFP Pinout (Package T)
LBO
A
A
A
A2
A
A0
TMS
TDI
VSS
VDD
VSS
DQC
DQC
DQC
DQC
VSS
VDDQ
DQC
DQC
FT
VDD
NC
VSS
DQD
DQD
VDDQ
VSS
DQD
DQD
DQD
DQD
VSS
VDDQ
DQD
DQD
NC
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
80
2
79
3
78
4
77
5
76
6
75
7
74
8
73
9
72
256K x 32
10
71
Top View
11
70
12
69
13
68
14
67
15
66
16
65
17
64
18
63
19
62
20
61
21
60
22
59
23
58
24
57
25
56
26
55
27
54
28
53
29
52
30
51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Rev: 1.04 3/2005
NC
DQB
DQB
VDDQ
VSS
DQB
DQB
DQB
DQB
VSS
VDDQ
DQB
DQB
VSS
NC
VDD
ZZ
DQA
DQA
VDDQ
VSS
DQA
DQA
DQA
DQA
VSS
VDDQ
DQA
DQA
NC
TDO
TCK
A
A
A
A
A
A
A
NC
DQC
DQC
VDDQ
3/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
A
A
E1
E2
BD
BC
BB
BA
A
VDD
VSS
CK
GW
BW
G
ADSC
ADSP
ADV
A
A
GS881E36B 100-Pin TQFP Pinout (Package T)
LBO
A
A
A
A2
A
A0
TMS
TDI
VSS
VDD
VSS
DQC
DQC
DQC
DQC
VSS
VDDQ
DQC
DQC
FT
VDD
NC
VSS
DQD
DQD
VDDQ
VSS
DQD
DQD
DQD
DQD
VSS
VDDQ
DQD
DQD
DQPD
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1
80
2
79
3
78
4
77
5
76
6
75
7
74
8
73
9
72
256K x 36
10
71
Top View
11
70
12
69
13
68
14
67
15
66
16
65
17
64
18
63
19
62
20
61
21
60
22
59
23
58
24
57
25
56
26
55
27
54
28
53
29
52
30
51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Rev: 1.04 3/2005
DQPB
DQB
DQB
VDDQ
VSS
DQB
DQB
DQB
DQB
VSS
VDDQ
DQB
DQB
VSS
NC
VDD
ZZ
DQA
DQA
VDDQ
VSS
DQA
DQA
DQA
DQA
VSS
VDDQ
DQA
DQA
DQPA
TDO
TCK
A
A
A
A
A
A
A
DQPC
DQC
DQC
VDDQ
4/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
TQFP Pin Description
Symbol
Type
Description
A 0, A 1
I
Address field LSBs and Address Counter preset Inputs
A
I
Address Inputs
DQA
DQB
DQC
DQD
I/O
Data Input and Output pins
NC
—
No Connect
BW
I
Byte Write—Writes all enabled bytes; active low
BA, BB, BC, BD
I
Byte Write Enable for DQ Data I/Os; active low
NC
—
No Connect
CK
I
Clock Input Signal; active high
GW
I
Global Write Enable—Writes all bytes; active low
E2
I
Chip Enable; active high
E1
I
Chip Enable; active low
G
I
Output Enable; active low
ADV
I
Burst address counter advance enable; active low
ADSP, ADSC
I
Address Strobe (Processor, Cache Controller); active low
ZZ
I
Sleep Mode control; active high
LBO
I
Linear Burst Order mode; active low
VDD
I
Core power supply
VSS
I
I/O and Core Ground
VDDQ
I
Output driver power supply
Rev: 1.04 3/2005
5/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
165 Bump BGA—x18 Commom I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BB
NC
E3
BW
ADSC
ADV
A
A
A
B
NC
A
E2
NC
BA
CK
GW
G
ADSP
A
NC
B
C
NC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
DQA
C
D
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
D
E
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
E
F
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
F
G
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
G
H
FT
MCL
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
J
K
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
K
L
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
L
M
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
M
N
DQB
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
NC
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
A
P
R
LBO
NC
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.04 3/2005
6/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
165 Bump BGA—x32 Common I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BC
BB
E3
BW
ADSC
ADV
A
NC
A
B
NC
A
E2
BD
BA
CK
GW
G
ADSP
A
NC
B
C
NC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
NC
C
D
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
D
E
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
E
F
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
F
G
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
G
H
FT
MCL
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
J
K
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
K
L
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
L
M
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
M
N
NC
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
NC
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
A
P
R
LBO
NC
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.04 3/2005
7/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
165 Bump BGA—x36 Common I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BC
BB
E3
BW
ADSC
ADV
A
NC
A
B
NC
A
E2
BD
BA
CK
GW
G
ADSP
A
NC
B
C
DQPC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
DQPB
C
D
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
D
E
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
E
F
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
F
G
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
G
H
FT
MCL
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
J
K
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
K
L
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
L
M
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
M
N
DQPD
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
DQPA
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
A
P
R
LBO
NC
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.04 3/2005
8/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
GS881E18/32/36BD 165-Bump BGA Pin Description
Symbol
Type
Description
A 0, A 1
I
Address field LSBs and Address Counter Preset Inputs
A
I
Address Inputs
DQA
DQB
DQC
DQD
I/O
Data Input and Output pins
BA , BB , BC , BD
I
Byte Write Enable for DQA, DQB, DQC, DQD I/Os; active low
NC
—
No Connect
CK
I
Clock Input Signal; active high
BW
I
Byte Write—Writes all enabled bytes; active low
GW
I
Global Write Enable—Writes all bytes; active low
E1
I
Chip Enable; active low
E3
I
Chip Enable; active low
E2
I
Chip Enable; active high
G
I
Output Enable; active low
ADV
I
Burst address counter advance enable; active l0w
ADSC, ADSP
I
Address Strobe (Processor, Cache Controller); active low
ZZ
I
Sleep mode control; active high
FT
I
Flow Through or Pipeline mode; active low
LBO
I
Linear Burst Order mode; active low
TMS
I
Scan Test Mode Select
TDI
I
Scan Test Data In
TDO
O
Scan Test Data Out
TCK
I
Scan Test Clock
MCL
—
Must Connect Low
VDD
I
Core power supply
VSS
I
I/O and Core Ground
VDDQ
I
Output driver power supply
Rev: 1.04 3/2005
9/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
GS881E18/32/36B Block Diagram
A0–An
Register
D
Q
A0
A0
D0
A1
Q0
A1
D1
Q1
Counter
Load
A
LBO
ADV
Memory
Array
CK
ADSC
ADSP
Q
D
Register
GW
BW
BA
D
Q
Register
D
36
Q
BB
36
4
Register
D
Q
D
Q
D
Q
Register
Register
D
Q
Register
BC
BD
Register
D
Q
Register
E1
E2
E3
D
Q
Register
D
Q
FT
G
ZZ
1
Power Down
Control
DQx1–DQx9
Note: Only x36 version shown for simplicity.
Rev: 1.04 3/2005
10/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Mode Pin Functions
Mode Name
Pin Name
Burst Order Control
LBO
Output Register Control
FT
Power Down Control
ZZ
FLXDrive Output Impedance Control
ZQ
State
Function
L
Linear Burst
H
Interleaved Burst
L
Flow Through
H or NC
Pipeline
L or NC
Active
H
Standby, IDD = ISB
L
High Drive (Low Impedance)
H or NC
Low Drive (High Impedance)
Note:
There is a pull-up device onthe FT pin and a pull-down device on the ZZ pin, so this input pin can be unconnected and the chip will operate in
the default states as specified in the above tables.
Burst Counter Sequences
Linear Burst Sequence
Interleaved Burst Sequence
A[1:0] A[1:0] A[1:0] A[1:0]
A[1:0] A[1:0] A[1:0] A[1:0]
1st address
00
01
10
11
1st address
00
01
10
11
2nd address
01
10
11
00
2nd address
01
00
11
10
3rd address
10
11
00
01
3rd address
10
11
00
01
4th address
11
00
01
10
4th address
11
10
01
00
Note:
The burst counter wraps to initial state on the 5th clock.
Note:
The burst counter wraps to initial state on the 5th clock.
BPR 1999.05.18
Rev: 1.04 3/2005
11/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Byte Write Truth Table
Function
GW
BW
BA
BB
BC
BD
Notes
Read
H
H
X
X
X
X
1
Read
H
L
H
H
H
H
1
Write byte a
H
L
L
H
H
H
2, 3
Write byte b
H
L
H
L
H
H
2, 3
Write byte c
H
L
H
H
L
H
2, 3, 4
Write byte d
H
L
H
H
H
L
2, 3, 4
Write all bytes
H
L
L
L
L
L
2, 3, 4
Write all bytes
L
X
X
X
X
X
Notes:
1. All byte outputs are active in read cycles regardless of the state of Byte Write Enable inputs.
2. Byte Write Enable inputs BA, BB, BC and/or BD may be used in any combination with BW to write single or multiple bytes.
3. All byte I/Os remain High-Z during all write operations regardless of the state of Byte Write Enable inputs.
4. Bytes “C” and “D” are only available on the x36 version.
Rev: 1.04 3/2005
12/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Synchronous Truth Table
Operation
Address
Used
State
Diagram
Key5
E1
E2
Deselect Cycle, Power Down
None
X
H
X
X
Deselect Cycle, Power Down
None
X
L
F
Deselect Cycle, Power Down
None
X
L
Read Cycle, Begin Burst
External
R
Read Cycle, Begin Burst
External
Write Cycle, Begin Burst
ADV
W3
DQ4
L
X
X
High-Z
L
X
X
X
High-Z
F
H
L
X
X
High-Z
L
T
L
X
X
X
Q
R
L
T
H
L
X
F
Q
External
W
L
T
H
L
X
T
D
Read Cycle, Continue Burst
Next
CR
X
X
H
H
L
F
Q
Read Cycle, Continue Burst
Next
CR
H
X
X
H
L
F
Q
Write Cycle, Continue Burst
Next
CW
X
X
H
H
L
T
D
Write Cycle, Continue Burst
Next
CW
H
X
X
H
L
T
D
Read Cycle, Suspend Burst
Current
X
X
H
H
H
F
Q
Read Cycle, Suspend Burst
Current
H
X
X
H
H
F
Q
Write Cycle, Suspend Burst
Current
X
X
H
H
H
T
D
ADSP ADSC
Write Cycle, Suspend Burst
Current
H
X
X
H
H
T
D
Notes:
1. X = Don’t Care, H = High, L = Low
2. E = T (True) if E2 = 1 and E3 = 0; E = F (False) if E2 = 0 or E3 = 1
3. W = T (True) and F (False) is defined in the Byte Write Truth Table preceding.
4. G is an asynchronous input. G can be driven high at any time to disable active output drivers. G low can only enable active drivers (shown
as “Q” in the Truth Table above).
5. All input combinations shown above are tested and supported. Input combinations shown in gray boxes need not be used to accomplish
basic synchronous or synchronous burst operations and may be avoided for simplicity.
6. Tying ADSP high and ADSC low allows simple non-burst synchronous operations. See BOLD items above.
7. Tying ADSP high and ADV low while using ADSC to load new addresses allows simple burst operations. See ITALIC items above.
Rev: 1.04 3/2005
13/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Simplified State Diagram
X
Deselect
W
R
Simple Burst Synchronous Operation
Simple Synchronous Operation
W
X
R
R
First Write
CW
First Read
CR
CR
W
X
R
R
X
Burst Write
Burst Read
X
CR
CW
CR
Notes:
1. The diagram shows only supported (tested) synchronous state transitions. The diagram presumes G is tied low.
2. The upper portion of the diagram assumes active use of only the Enable (E1) and Write (BA, BB, BC, BD, BW, and GW) control inputs, and
that ADSP is tied high and ADSC is tied low.
3. The upper and lower portions of the diagram together assume active use of only the Enable, Write, and ADSC control inputs, and
assumes ADSP is tied high and ADV is tied low.
Rev: 1.04 3/2005
14/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Simplified State Diagram with G
X
Deselect
W
R
W
X
R
R
First Write
CR
CW
W
CW
W
X
First Read
X
CR
R
Burst Write
R
CR
CW
W
Burst Read
X
CW
CR
Notes:
1. The diagram shows supported (tested) synchronous state transitions plus supported transitions that depend upon the use of G.
2. Use of “Dummy Reads” (Read Cycles with G High) may be used to make the transition from read cycles to write cycles without passing
through a Deselect cycle. Dummy Read cycles increment the address counter just like normal read cycles.
3. Transitions shown in gray tone assume G has been pulsed high long enough to turn the RAM’s drivers off and for incoming data to meet
Data Input Set Up Time.
Rev: 1.04 3/2005
15/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Absolute Maximum Ratings
(All voltages reference to VSS)
Symbol
Description
Value
Unit
VDD
Voltage on VDD Pins
–0.5 to 4.6
V
VDDQ
Voltage in VDDQ Pins
–0.5 to 4.6
V
VI/O
Voltage on I/O Pins
–0.5 to VDDQ +0.5 (≤ 4.6 V max.)
V
VIN
Voltage on Other Input Pins
–0.5 to VDD +0.5 (≤ 4.6 V max.)
V
IIN
Input Current on Any Pin
+/–20
mA
IOUT
Output Current on Any I/O Pin
+/–20
mA
PD
Package Power Dissipation
1.5
W
TSTG
Storage Temperature
–55 to 125
o
TBIAS
Temperature Under Bias
–55 to 125
o
C
C
Note:
Permanent damage to the device may occur if the Absolute Maximum Ratings are exceeded. Operation should be restricted to Recommended
Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of
this component.
Power Supply Voltage Ranges
Parameter
Symbol
Min.
Typ.
Max.
Unit
3.3 V Supply Voltage
VDD3
3.0
3.3
3.6
V
2.5 V Supply Voltage
VDD2
2.3
2.5
2.7
V
3.3 V VDDQ I/O Supply Voltage
VDDQ3
3.0
3.3
3.6
V
2.5 V VDDQ I/O Supply Voltage
VDDQ2
2.3
2.5
2.7
V
Notes
Notes:
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the device.
2. Input Under/overshoot voltage must be –2 V > Vi < VDDn+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
Rev: 1.04 3/2005
16/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
VDDQ3 Range Logic Levels
Parameter
Symbol
Min.
Typ.
Max.
Unit
Notes
VDD Input High Voltage
VIH
2.0
—
VDD + 0.3
V
1
VDD Input Low Voltage
VIL
–0.3
—
0.8
V
1
VDDQ I/O Input High Voltage
VIHQ
2.0
—
VDDQ + 0.3
V
1,3
VDDQ I/O Input Low Voltage
VILQ
–0.3
—
0.8
V
1,3
Notes:
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the device.
2. Input Under/overshoot voltage must be –2 V > Vi < VDDn+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
3. VIHQ (max) is voltage on VDDQ pins plus 0.3 V.
VDDQ2 Range Logic Levels
Parameter
Symbol
Min.
Typ.
Max.
Unit
Notes
VDD Input High Voltage
VIH
0.6*VDD
—
VDD + 0.3
V
1
VDD Input Low Voltage
VIL
–0.3
—
0.3*VDD
V
1
VDDQ I/O Input High Voltage
VIHQ
0.6*VDD
—
VDDQ + 0.3
V
1,3
VDDQ I/O Input Low Voltage
VILQ
–0.3
—
0.3*VDD
V
1,3
Notes:
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the device.
2. Input Under/overshoot voltage must be –2 V > Vi < VDDn+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
3. VIHQ (max) is voltage on VDDQ pins plus 0.3 V.
Recommended Operating Temperatures
Parameter
Symbol
Min.
Typ.
Max.
Unit
Notes
Ambient Temperature (Commercial Range Versions)
TA
0
25
70
°C
2
Ambient Temperature (Industrial Range Versions)
TA
–40
25
85
°C
2
Notes:
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the device.
2. Input Under/overshoot voltage must be –2 V > Vi < VDDn+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
Rev: 1.04 3/2005
17/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Undershoot Measurement and Timing
Overshoot Measurement and Timing
VIH
50% tKC
VDD + 2.0 V
VSS
50%
50%
VDD
VSS – 2.0 V
50% tKC
VIL
Capacitance
(TA = 25oC, f = 1 MHZ, VDD = 2.5 V)
Parameter
Symbol
Test conditions
Typ.
Max.
Unit
Input Capacitance
CIN
VIN = 0 V
4
5
pF
Input/Output Capacitance
CI/O
VOUT = 0 V
6
7
pF
Note:
These parameters are sample tested.
AC Test Conditions
Parameter
Conditions
Input high level
VDD – 0.2 V
Input low level
0.2 V
Input slew rate
1 V/ns
Input reference level
VDD/2
Output reference level
VDDQ/2
Output load
Fig. 1
Notes:
1. Include scope and jig capacitance.
2. Test conditions as specified with output loading as shown in Fig. 1
unless otherwise noted.
3. Device is deselected as defined by the Truth Table.
Output Load 1
DQ
50Ω
30pF*
VDDQ/2
* Distributed Test Jig Capacitance
Rev: 1.04 3/2005
18/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
DC Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Max
Input Leakage Current
(except mode pins)
IIL
VIN = 0 to VDD
–1 uA
1 uA
ZZ Input Current
IIN1
VDD ≥ VIN ≥ VIH
0 V ≤ VIN ≤ VIH
–1 uA
–1 uA
1 uA
100 uA
FT, SCD, ZQ Input Current
IIN2
VDD ≥ VIN ≥ VIL
0 V ≤ VIN ≤ VIL
–100 uA
–1 uA
1 uA
1 uA
Output Leakage Current
IOL
Output Disable, VOUT = 0 to VDD
–1 uA
1 uA
Output High Voltage
VOH2
IOH = –8 mA, VDDQ = 2.375 V
1.7 V
—
Output High Voltage
VOH3
IOH = –8 mA, VDDQ = 3.135 V
2.4 V
—
Output Low Voltage
VOL
IOL = 8 mA
—
0.4 V
Rev: 1.04 3/2005
19/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Operating Currents
-333
Parameter
Operating
Current
Test Conditions
Device Selected;
All other inputs
≥VIH or ≤ VIL
Output open
(x18)
Standby
Current
ZZ ≥ VDD – 0.2 V
Deselect
Current
Device Deselected;
All other inputs
≥ VIH or ≤ VIL
—
—
-250
-200
-150
Symbol
–40
to
85°C
0
to
70°C
–40
to
85°C
0
to
70°C
–40
to
85°C
0
to
70°C
–40
to
85°C
0
to
70°C
–40
to
85°C
Pipeline
IDD
IDDQ
250
40
270
40
230
35
250
35
200
30
220
30
170
25
190
25
140
20
160
20
mA
Flow
Through
IDD
IDDQ
205
25
225
25
185
25
205
25
160
25
180
25
140
20
160
20
130
15
150
15
mA
Pipeline
IDD
IDDQ
230
20
250
20
210
20
230
20
185
15
205
15
155
15
175
15
130
10
150
10
mA
Flow
Through
IDD
IDDQ
185
15
205
15
170
15
190
15
145
15
165
15
130
10
150
10
120
8
140
8
mA
Pipeline
ISB
40
50
40
50
40
50
40
50
40
50
mA
Flow
Through
ISB
40
50
40
50
40
50
40
50
40
50
mA
Pipeline
IDD
95
100
90
95
85
90
75
80
60
65
mA
Flow
Through
IDD
65
60
60
65
60
65
50
55
50
55
mA
Mode
(x32/
x36)
-300
0
to
70°C
Unit
Notes:
1. IDD and IDDQ apply to any combination of VDD3, VDD2, VDDQ3, and VDDQ2 operation.
2. All parameters listed are worst case scenario.
Rev: 1.04 3/2005
20/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
AC Electrical Characteristics
Pipeline
Flow
Through
Parameter
Symbol
Clock Cycle Time
tKC
-333
-300
-250
-200
-150
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Min
Max
3.0
—
3.3
—
4.0
—
5.0
—
6.7
—
ns
Clock to Output Valid
tKQ
—
2.5
—
2.5
—
2.5
—
3.0
—
3.8
ns
Clock to Output Invalid
tKQX
1.5
—
1.5
—
1.5
—
1.5
—
1.5
—
ns
Clock to Output in Low-Z
tLZ1
1.5
—
1.5
—
1.5
—
1.5
—
1.5
—
ns
Setup time
tS
1.0
—
1.0
—
1.2
—
1.4
—
1.5
—
ns
Hold time
tH
0.1
—
0.1
—
0.2
—
0.4
—
0.5
—
ns
Clock Cycle Time
tKC
4.5
—
5.0
—
5.5
—
6.5
—
7.5
—
ns
Clock to Output Valid
tKQ
—
4.5
—
5.0
—
5.5
—
6.5
—
7.5
ns
Clock to Output Invalid
tKQX
2.0
—
2.0
—
2.0
—
2.0
—
2.0
—
ns
1
Clock to Output in Low-Z
tLZ
2.0
—
2.0
—
2.0
—
2.0
—
2.0
—
ns
Setup time
tS
1.3
—
1.4
—
1.5
—
1.5
—
1.5
—
ns
Hold time
tH
0.3
—
0.4
—
0.5
—
0.5
—
0.5
—
ns
Clock HIGH Time
tKH
1.0
—
1.0
—
1.3
—
1.3
—
1.5
—
ns
Clock LOW Time
tKL
1.2
—
1.2
—
1.5
—
1.5
—
1.7
—
ns
Clock to Output in
High-Z
tHZ1
1.5
2.5
1.5
2.5
1.5
2.5
1.5
3.0
1.5
3.0
ns
G to Output Valid
tOE
—
2.5
—
2.5
—
2.5
—
3.0
—
3.8
ns
G to output in Low-Z
tOLZ1
0
—
0
—
0
—
0
—
0
—
ns
G to output in High-Z
tOHZ1
—
2.5
—
2.5
—
2.5
—
3.0
—
3.8
ns
2
5
—
5
—
5
—
5
—
5
—
ns
ZZ hold time
tZZH
2
1
—
1
—
1
—
1
—
1
—
ns
ZZ recovery
tZZR
20
—
20
—
20
—
20
—
20
—
ns
ZZ setup time
tZZS
Notes:
1. These parameters are sampled and are not 100% tested.
2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold
times as specified above.
Rev: 1.04 3/2005
21/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Pipeline Mode Timing (DCD)
Begin
Read A
Cont
Deselect Deselect Write B
Read C
Read C+1 Read C+2 Read C+3 Cont
Deselect Deselect
tKL
tKH
tKC
CK
ADSP
tS
ADSC initiated read
tH
ADSC
tS
tH
ADV
tS
tH
Ao–An
A
B
C
tS
GW
tS
tH
BW
tH
tS
Ba–Bd
tS
Deselected with E1
tH
E1
tS
E2 and E3 only sampled with ADSC
tH
E2
tS
tH
E3
G
tS
tOE
DQa–DQd
Hi-Z
Rev: 1.04 3/2005
tOHZ
Q(A)
tKQ
tH
D(B)
tHZ
tLZ
tKQX
Q(C)
Q(C+1)
22/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Q(C+2)
Q(C+3)
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Flow Through Mode Timing (DCD)
Begin
Read A
Cont
Deselect Write B
Read C
Read C+1 Read C+2 Read C+3 Read C
Deselect
tKL
tKH
tKC
CK
ADSP
Fixed High
tS
tH
tS
tH
ADSC
initiated read
ADSC
tH
tS
tS
tH
ADV
tS
tH
Ao–An
A
B
C
tS
tH
GW
tS
tH
BW
tH
tS
Ba–Bd
tS
Deselected with E1
tH
E1 masks ADSP
E1
tS
tH
E2 and E3 only sampled with ADSP and ADSC
E2
tS
tH
E1 masks ADSP
E3
G
tH
tS
tOE
tKQ
DQa–DQd
Rev: 1.04 3/2005
tOHZ
Q(A)
tKQX
tHZ
tLZ
D(B)
Q(C)
Q(C+1)
Q(C+2)
23/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Q(C+3)
Q(C)
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Sleep Mode
During normal operation, ZZ must be pulled low, either by the user or by its internal pull down resistor. When ZZ is pulled high,
the SRAM will enter a Power Sleep mode after 2 cycles. At this time, internal state of the SRAM is preserved. When ZZ returns to
low, the SRAM operates normally after ZZ recovery time.
Sleep mode is a low current, power-down mode in which the device is deselected and current is reduced to ISB2. The duration of
Sleep mode is dictated by the length of time the ZZ is in a High state. After entering Sleep mode, all inputs except ZZ become
disabled and all outputs go to High-Z The ZZ pin is an asynchronous, active high input that causes the device to enter Sleep mode.
When the ZZ pin is driven high, ISB2 is guaranteed after the time tZZI is met. Because ZZ is an asynchronous input, pending
operations or operations in progress may not be properly completed if ZZ is asserted. Therefore, Sleep mode must not be initiated
until valid pending operations are completed. Similarly, when exiting Sleep mode during tZZR, only a Deselect or Read commands
may be applied while the SRAM is recovering from Sleep mode.
Sleep Mode Timing Diagram
tKH
tKC
tKL
CK
Setup
Hold
ADSP
ADSC
tZZR
tZZS
tZZH
ZZ
Application Tips
Single and Dual Cycle Deselect
SCD devices force the use of “dummy read cycles” (read cycles that are launched normally but that are ended with the output
drivers inactive) in a fully synchronous environment. Dummy read cycles waste performance but their use usually assures there
will be no bus contention in transitions from reads to writes or between banks of RAMs. DCD SRAMs (like this one) do not waste
bandwidth on dummy cycles and are logically simpler to manage in a multiple bank application (wait states need not be inserted at
bank address boundary crossings) but greater care must be exercised to avoid excessive bus contention.
JTAG Port Operation
Overview
The JTAG Port on this RAM operates in a manner that is compliant with IEEE Standard 1149.1-1990, a serial boundary scan
interface standard (commonly referred to as JTAG). The JTAG Port input interface levels scale with VDD. The JTAG output
drivers are powered by VDDQ.
Rev: 1.04 3/2005
24/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Disabling the JTAG Port
It is possible to use this device without utilizing the JTAG port. The port is reset at power-up and will remain inactive unless
clocked. TCK, TDI, and TMS are designed with internal pull-up circuits.To assure normal operation of the RAM with the JTAG
Port unused, TCK, TDI, and TMS may be left floating or tied to either VDD or VSS. TDO should be left unconnected.
JTAG Port Registers
JTAG Pin Descriptions
Pin
Pin Name
I/O
Description
TCK
Test Clock
In
Clocks all TAP events. All inputs are captured on the rising edge of TCK and all outputs propagate
from the falling edge of TCK.
TMS
Test Mode Select
In
The TMS input is sampled on the rising edge of TCK. This is the command input for the TAP
controller state machine. An undriven TMS input will produce the same result as a logic one input
level.
In
The TDI input is sampled on the rising edge of TCK. This is the input side of the serial registers
placed between TDI and TDO. The register placed between TDI and TDO is determined by the
state of the TAP Controller state machine and the instruction that is currently loaded in the TAP
Instruction Register (refer to the TAP Controller State Diagram). An undriven TDI pin will produce
the same result as a logic one input level.
TDI
Test Data In
TDO
Test Data Out
Output that is active depending on the state of the TAP state machine. Output changes in
Out response to the falling edge of TCK. This is the output side of the serial registers placed between
TDI and TDO.
Note:
This device does not have a TRST (TAP Reset) pin. TRST is optional in IEEE 1149.1. The Test-Logic-Reset state is entered while TMS is
held high for five rising edges of TCK. The TAP Controller is also reset automaticly at power-up.
Overview
The various JTAG registers, refered to as Test Access Port orTAP Registers, are selected (one at a time) via the sequences of 1s
and 0s applied to TMS as TCK is strobed. Each of the TAP Registers is a serial shift register that captures serial input data on the
rising edge of TCK and pushes serial data out on the next falling edge of TCK. When a register is selected, it is placed between the
TDI and TDO pins.
Instruction Register
The Instruction Register holds the instructions that are executed by the TAP controller when it is moved into the Run, Test/Idle, or
the various data register states. Instructions are 3 bits long. The Instruction Register can be loaded when it is placed between the
TDI and TDO pins. The Instruction Register is automatically preloaded with the IDCODE instruction at power-up or whenever the
controller is placed in Test-Logic-Reset state.
Bypass Register
The Bypass Register is a single bit register that can be placed between TDI and TDO. It allows serial test data to be passed through
the RAM’s JTAG Port to another device in the scan chain with as little delay as possible.
Boundary Scan Register
The Boundary Scan Register is a collection of flip flops that can be preset by the logic level found on the RAM’s input or I/O pins.
The flip flops are then daisy chained together so the levels found can be shifted serially out of the JTAG Port’s TDO pin. The
Boundary Scan Register also includes a number of place holder flip flops (always set to a logic 1). The relationship between the
device pins and the bits in the Boundary Scan Register is described in the Scan Order Table following. The Boundary Scan
Register, under the control of the TAP Controller, is loaded with the contents of the RAMs I/O ring when the controller is in
Capture-DR state and then is placed between the TDI and TDO pins when the controller is moved to Shift-DR state. SAMPLE-Z,
SAMPLE/PRELOAD and EXTEST instructions can be used to activate the Boundary Scan Register.
Rev: 1.04 3/2005
25/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
JTAG TAP Block Diagram
·
·
·
·
·
·
Boundary Scan Register
·
·
0
Bypass Register
0
108
·
1
·
·
2 1 0
Instruction Register
TDI
TDO
ID Code Register
31 30 29
·
· · ·
2 1 0
Control Signals
TMS
TCK
Test Access Port (TAP) Controller
Identification (ID) Register
The ID Register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in
Capture-DR state with the IDCODE command loaded in the Instruction Register. The code is loaded from a 32-bit on-chip ROM.
It describes various attributes of the RAM as indicated below. The register is then placed between the TDI and TDO pins when the
controller is moved into Shift-DR state. Bit 0 in the register is the LSB and the first to reach TDO when shifting begins.
Rev: 1.04 3/2005
26/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Die
Revision
Code
GSI Technology
JEDEC Vendor
ID Code
I/O
Configuration
Not Used
Presence Register
Tap Controller Instruction Set
ID Register Contents
Bit #
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0
x36
X
X
X
X
0
0
0
X
1
0
0
1
0
0
0
0
1
0
0
0
0
0 0 1 1 0 1 1 0 0 1
1
x32
X
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0 0 1 1 0 1 1 0 0 1
1
x18
X
X
X
X
0
0
0
X
1
0
0
1
0
0
0
0
1
0
1
0
0
0 0 1 1 0 1 1 0 0 1
1
Overview
There are two classes of instructions defined in the Standard 1149.1-1990; the standard (Public) instructions, and device specific
(Private) instructions. Some Public instructions are mandatory for 1149.1 compliance. Optional Public instructions must be
implemented in prescribed ways. The TAP on this device may be used to monitor all input and I/O pads, and can be used to load
address, data or control signals into the RAM or to preload the I/O buffers.
When the TAP controller is placed in Capture-IR state the two least significant bits of the instruction register are loaded with 01.
When the controller is moved to the Shift-IR state the Instruction Register is placed between TDI and TDO. In this state the desired
instruction is serially loaded through the TDI input (while the previous contents are shifted out at TDO). For all instructions, the
TAP executes newly loaded instructions only when the controller is moved to Update-IR state. The TAP instruction set for this
device is listed in the following table.
Rev: 1.04 3/2005
27/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
JTAG Tap Controller State Diagram
1
0
Test Logic Reset
0
Run Test Idle
1
Select DR
1
Select IR
0
0
1
1
Capture DR
Capture IR
0
0
Shift DR
1
1
Shift IR
0
1
1
Exit1 DR
0
Exit1 IR
0
0
Pause DR
1
Exit2 DR
1
Update DR
1
1
0
0
Pause IR
1
Exit2 IR
0
1
0
0
Update IR
1
0
Instruction Descriptions
BYPASS
When the BYPASS instruction is loaded in the Instruction Register the Bypass Register is placed between TDI and TDO. This
occurs when the TAP controller is moved to the Shift-DR state. This allows the board level scan path to be shortened to facilitate testing of other devices in the scan path.
SAMPLE/PRELOAD
SAMPLE/PRELOAD is a Standard 1149.1 mandatory public instruction. When the SAMPLE / PRELOAD instruction is
loaded in the Instruction Register, moving the TAP controller into the Capture-DR state loads the data in the RAMs input and
I/O buffers into the Boundary Scan Register. Boundary Scan Register locations are not associated with an input or I/O pin, and
are loaded with the default state identified in the Boundary Scan Chain table at the end of this section of the datasheet. Because
the RAM clock is independent from the TAP Clock (TCK) it is possible for the TAP to attempt to capture the I/O ring contents
while the input buffers are in transition (i.e. in a metastable state). Although allowing the TAP to sample metastable inputs will
not harm the device, repeatable results cannot be expected. RAM input signals must be stabilized for long enough to meet the
TAPs input data capture set-up plus hold time (tTS plus tTH). The RAMs clock inputs need not be paused for any other TAP
operation except capturing the I/O ring contents into the Boundary Scan Register. Moving the controller to Shift-DR state then
places the boundary scan register between the TDI and TDO pins.
EXTEST
EXTEST is an IEEE 1149.1 mandatory public instruction. It is to be executed whenever the instruction register is loaded with
all logic 0s. The EXTEST command does not block or override the RAM’s input pins; therefore, the RAM’s internal state is
still determined by its input pins.
Rev: 1.04 3/2005
28/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Typically, the Boundary Scan Register is loaded with the desired pattern of data with the SAMPLE/PRELOAD command.
Then the EXTEST command is used to output the Boundary Scan Register’s contents, in parallel, on the RAM’s data output
drivers on the falling edge of TCK when the controller is in the Update-IR state.
Alternately, the Boundary Scan Register may be loaded in parallel using the EXTEST command. When the EXTEST instruction is selected, the sate of all the RAM’s input and I/O pins, as well as the default values at Scan Register locations not associated with a pin, are transferred in parallel into the Boundary Scan Register on the rising edge of TCK in the Capture-DR
state, the RAM’s output pins drive out the value of the Boundary Scan Register location with which each output pin is associated.
IDCODE
The IDCODE instruction causes the ID ROM to be loaded into the ID register when the controller is in Capture-DR mode and
places the ID register between the TDI and TDO pins in Shift-DR mode. The IDCODE instruction is the default instruction
loaded in at power up and any time the controller is placed in the Test-Logic-Reset state.
SAMPLE-Z
If the SAMPLE-Z instruction is loaded in the instruction register, all RAM outputs are forced to an inactive drive state (highZ) and the Boundary Scan Register is connected between TDI and TDO when the TAP controller is moved to the Shift-DR
state.
RFU
These instructions are Reserved for Future Use. In this device they replicate the BYPASS instruction.
Rev: 1.04 3/2005
29/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
JTAG Port AC Test Conditions
Parameter
Conditions
Input high level
VDD – 0.2 V
Input low level
0.2 V
Input slew rate
1 V/ns
Input reference level
VDDQ/2
Output reference level
VDDQ/2
JTAG Port AC Test Load
DQ
50Ω
30pF*
VDDQ/2
* Distributed Test Jig Capacitance
Notes:
1. Include scope and jig capacitance.
2. Test conditions as shown unless otherwise noted.
JTAG TAP Instruction Set Summary
Instruction
Code
Description
EXTEST
000
Places the Boundary Scan Register between TDI and TDO.
1
IDCODE
001
Preloads ID Register and places it between TDI and TDO.
1, 2
SAMPLE-Z
010
Captures I/O ring contents. Places the Boundary Scan Register between TDI and
TDO.
Forces all RAM output drivers to High-Z.
1
RFU
011
Do not use this instruction; Reserved for Future Use.
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.
1
SAMPLE/
PRELOAD
100
Captures I/O ring contents. Places the Boundary Scan Register between TDI and
TDO.
1
GSI
101
GSI private instruction.
1
RFU
110
Do not use this instruction; Reserved for Future Use.
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.
1
BYPASS
111
Places Bypass Register between TDI and TDO.
Notes:
1. Instruction codes expressed in binary, MSB on left, LSB on right.
2. Default instruction automatically loaded at power-up and in test-logic-reset state.
Rev: 1.04 3/2005
30/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Notes
1
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
JTAG Port Recommended Operating Conditions and DC Characteristics
Parameter
Symbol
Min.
Max.
Unit Notes
3.3 V Test Port Input High Voltage
VIHJ3
2.0
VDD3 +0.3
V
1
3.3 V Test Port Input Low Voltage
VILJ3
–0.3
0.8
V
1
2.5 V Test Port Input High Voltage
VIHJ2
0.6 * VDD2
VDD2 +0.3
V
1
2.5 V Test Port Input Low Voltage
VILJ2
–0.3
0.3 * VDD2
V
1
TMS, TCK and TDI Input Leakage Current
IINHJ
–300
1
uA
2
TMS, TCK and TDI Input Leakage Current
IINLJ
–1
100
uA
3
TDO Output Leakage Current
IOLJ
–1
1
uA
4
Test Port Output High Voltage
VOHJ
1.7
—
V
5, 6
Test Port Output Low Voltage
VOLJ
—
0.4
V
5, 7
Test Port Output CMOS High
VOHJC
VDDQ – 100 mV
—
V
5, 8
Test Port Output CMOS Low
VOLJC
—
100 mV
V
5, 9
Notes:
1. Input Under/overshoot voltage must be –2 V > Vi < VDDn +2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tTKC.
2. VILJ ≤ VIN ≤ VDDn
3. 0 V ≤ VIN ≤ VILJn
4. Output Disable, VOUT = 0 to VDDn
5. The TDO output driver is served by the VDDQ supply.
6. IOHJ = –4 mA
7. IOLJ = + 4 mA
8. IOHJC = –100 uA
9. IOLJC = +100 uA
Rev: 1.04 3/2005
31/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
JTAG Port Timing Diagram
tTKC
tTKH
tTKL
TCK
tTH
tTS
TDI
tTH
tTS
TMS
tTKQ
TDO
tTH
tTS
Parallel SRAM input
JTAG Port AC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
TCK Cycle Time
tTKC
50
—
ns
TCK Low to TDO Valid
tTKQ
—
20
ns
TCK High Pulse Width
tTKH
20
—
ns
TCK Low Pulse Width
tTKL
20
—
ns
TDI & TMS Set Up Time
tTS
10
—
ns
TDI & TMS Hold Time
tTH
10
—
ns
Boundary Scan (BSDL Files)
For information regarding the Boundary Scan Chain, or to obtain BSDL files for this part, please contact our Applications
Engineering Department at: [email protected].
Rev: 1.04 3/2005
32/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
TQFP Package Drawing (Package T)
L
Min. Nom. Max
A1
Standoff
0.05
0.10
0.15
A2
Body Thickness
1.35
1.40
1.45
b
Lead Width
0.20
0.30
0.40
c
Lead Thickness
0.09
—
0.20
D
Terminal Dimension
21.9
22.0
22.1
D1
Package Body
19.9
20.0
20.1
E
Terminal Dimension
15.9
16.0
16.1
E1
Package Body
13.9
14.0
14.1
e
Lead Pitch
—
0.65
—
L
Foot Length
0.45
0.60
0.75
L1
Lead Length
—
1.00
—
Y
Coplanarity
θ
Lead Angle
e
D
D1
Description
c
Pin 1
Symbol
L1
θ
b
A1
A2
0.10
Y
0°
—
7°
E1
E
Notes:
1. All dimensions are in millimeters (mm).
2. Package width and length do not include mold protrusion.
Rev: 1.04 3/2005
33/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Package Dimensions—165-Bump FPBGA (Package D; Variation 1)
A1 CORNER
TOP VIEW
BOTTOM VIEW
Ø0.10 M C
Ø0.25 M C A B
Ø0.40~0.50 (165x)
1 2 3 4 5 6 7 8 9 10 11
A1 CORNER
11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1.0
14.0
15±0.07
1.0
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
A
1.0
1.0
0.15 C
B
C
Rev: 1.04 3/2005
SEATING PLANE
13±0.07
0.20(4x)
0.25~0.40
1.20 MAX.
(0.26)
0.45±0.05
0.25 C
10.0
34/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Ordering Information for GSI Synchronous Burst RAMs
Org
Part Number1
Type
Package
Speed2
(MHz/ns)
TA3
512K x 18
GS881E18BT-333
DCD Pipeline/Flow Through
TQFP
333/4.5
C
512K x 18
GS881E18BT-300
DCD Pipeline/Flow Through
TQFP
300/5
C
512K x 18
GS881E18BT-250
DCD Pipeline/Flow Through
TQFP
250/5.5
C
512K x 18
GS881E18BT-200
DCD Pipeline/Flow Through
TQFP
200/6.5
C
512K x 18
GS881E18BT-150
DCD Pipeline/Flow Through
TQFP
150/7.5
C
256K x 32
GS881E36BT-333
DCD Pipeline/Flow Through
TQFP
333/4.5
C
256K x 32
GS881E32BT-300
DCD Pipeline/Flow Through
TQFP
300/5
C
256K x 32
GS881E36BT-250
DCD Pipeline/Flow Through
TQFP
250/5.5
C
256K x 32
GS881E32BT-200
DCD Pipeline/Flow Through
TQFP
200/6.5
C
256K x 32
GS881E32BT-150
DCD Pipeline/Flow Through
TQFP
150/7.5
C
256K x 36
GS881E36BT-333
DCD Pipeline/Flow Through
TQFP
333/4.5
C
256K x 36
GS881E36BT-300
DCD Pipeline/Flow Through
TQFP
300/5
C
256K x 36
GS881E36BT-250
DCD Pipeline/Flow Through
TQFP
250/5.5
C
256K x 36
GS881E36BT-200
DCD Pipeline/Flow Through
TQFP
200/6.5
C
256K x 36
GS881E36BT-150
DCD Pipeline/Flow Through
TQFP
150/7.5
C
512K x 18
GS881E18BT-333I
DCD Pipeline/Flow Through
TQFP
333/4.5
I
512K x 18
GS881E18BT-2300I
DCD Pipeline/Flow Through
TQFP
300/5
I
512K x 18
GS881E18BT-250I
DCD Pipeline/Flow Through
TQFP
250/5.5
I
512K x 18
GS881E18BT-200I
DCD Pipeline/Flow Through
TQFP
200/6.5
I
512K x 18
GS881E18BT-150I
DCD Pipeline/Flow Through
TQFP
150/7.5
I
256K x 32
GS881E36BT-333I
DCD Pipeline/Flow Through
TQFP
333/4.5
I
256K x 32
GS881E32BT-300I
DCD Pipeline/Flow Through
TQFP
300/5
I
256K x 32
GS881E36BT-250I
DCD Pipeline/Flow Through
TQFP
250/5.5
I
256K x 32
GS881E32BT-200I
DCD Pipeline/Flow Through
TQFP
200/6.5
I
256K x 32
GS881E32BT-150I
DCD Pipeline/Flow Through
TQFP
150/7.5
I
256K x 36
GS881E36BT-333I
DCD Pipeline/Flow Through
TQFP
333/4.5
I
256K x 36
GS881E36BT-300I
DCD Pipeline/Flow Through
TQFP
300/5
I
256K x 36
GS881E36BT-250I
DCD Pipeline/Flow Through
TQFP
250/5.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS881E18BT-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.04 3/2005
35/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Ordering Information for GSI Synchronous Burst RAMs (Continued)
Org
Part Number1
Type
Package
Speed2
(MHz/ns)
TA3
256K x 36
GS881E36BT-200I
DCD Pipeline/Flow Through
TQFP
200/6.5
I
256K x 36
GS881E36BT-150I
DCD Pipeline/Flow Through
TQFP
150/7.5
I
512K x 18
GS881E18BGT-333
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
C
512K x 18
GS881E18BGT-300
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
C
512K x 18
GS881E18BGT-250
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
C
512K x 18
GS881E18BGT-200
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
C
512K x 18
GS881E18BGT-150
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
C
256K x 32
GS881E36BGT-333
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
C
256K x 32
GS881E32BGT-300
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
C
256K x 32
GS881E36BGT-250
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
C
256K x 32
GS881E32BGT-200
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
C
256K x 32
GS881E32BGT-150
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
C
256K x 36
GS881E36BGT-333
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
C
256K x 36
GS881E36BGT-300
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
C
256K x 36
GS881E36BGT-250
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
C
256K x 36
GS881E36BGT-200
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
C
256K x 36
GS881E36BGT-150
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
C
512K x 18
GS881E18BGT-333I
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
I
512K x 18
GS881E18BGT-2300I
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
I
512K x 18
GS881E18BGT-250I
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
I
512K x 18
GS881E18BGT-200I
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
I
512K x 18
GS881E18BGT-150I
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
I
256K x 32
GS881E36BGT-333I
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
I
256K x 32
GS881E32BGT-300I
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
I
256K x 32
GS881E36BGT-250I
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
I
256K x 32
GS881E32BGT-200I
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
I
256K x 32
GS881E32BGT-150I
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
I
256K x 36
GS881E36BGT-333I
DCD Pipeline/Flow Through
Pb-free TQFP
333/4.5
I
256K x 36
GS881E36BGT-300I
DCD Pipeline/Flow Through
Pb-free TQFP
300/5
I
256K x 36
GS881E36BGT-250I
DCD Pipeline/Flow Through
Pb-free TQFP
250/5.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS881E18BT-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.04 3/2005
36/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Ordering Information for GSI Synchronous Burst RAMs (Continued)
Org
Part Number1
Type
Package
Speed2
(MHz/ns)
TA3
256K x 36
GS881E36BGT-200I
DCD Pipeline/Flow Through
Pb-free TQFP
200/6.5
I
256K x 36
GS881E36BGT-150I
DCD Pipeline/Flow Through
Pb-free TQFP
150/7.5
I
512K x 18
GS881E18BD-333
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
C
512K x 18
GS881E18BD-300
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
C
512K x 18
GS881E18BD-250
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
C
512K x 18
GS881E18BD-200
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
C
512K x 18
GS881E18BD-150
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
C
256K x 32
GS881E32BD-333
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
C
256K x 32
GS881E32BD-300
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
C
256K x 32
GS881E32BD-250
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
C
256K x 32
GS881E32BD-200
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
C
256K x 32
GS881E32BD-150
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
C
256K x 36
GS881E36BD-333
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
C
256K x 36
GS881E36BD-300
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
C
256K x 36
GS881E36BD-250
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
C
256K x 36
GS881E36BD-200
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
C
256K x 36
GS881E36BD-150
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
C
512K x 18
GS881E18BD-333I
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
I
512K x 18
GS881E18BD-300I
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
I
512K x 18
GS881E18BD-250I
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
I
512K x 18
GS881E18BD-200I
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
I
512K x 18
GS881E18BD-150I
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
I
256K x 32
GS881E32BD-333I
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
I
256K x 32
GS881E32BD-300I
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
I
256K x 32
GS881E32BD-250I
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
I
256K x 32
GS881E32BD-200I
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
I
256K x 32
GS881E32BD-150I
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
I
256K x 36
GS881E36BD-333I
DCD Pipeline/Flow Through
165 BGA (var. 1)
333/4.5
I
256K x 36
GS881E36BD-300I
DCD Pipeline/Flow Through
165 BGA (var. 1)
300/5
I
256K x 36
GS881E36BD-250I
DCD Pipeline/Flow Through
165 BGA (var. 1)
250/5.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS881E18BT-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.04 3/2005
37/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Ordering Information for GSI Synchronous Burst RAMs (Continued)
Org
Part Number1
Type
Package
Speed2
(MHz/ns)
TA3
256K x 36
GS881E36BD-200I
DCD Pipeline/Flow Through
165 BGA (var. 1)
200/6.5
I
256K x 36
GS881E36BD-150I
DCD Pipeline/Flow Through
165 BGA (var. 1)
150/7.5
I
512K x 18
GS881E18BGD-333
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
C
512K x 18
GS881E18BGD-300
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
C
512K x 18
GS881E18BGD-250
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
C
512K x 18
GS881E18BGD-200
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
C
512K x 18
GS881E18BGD-150
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
C
256K x 32
GS881E32BGD-333
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
C
256K x 32
GS881E32BGD-300
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
C
256K x 32
GS881E32BGD-250
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
C
256K x 32
GS881E32BGD-200
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
C
256K x 32
GS881E32BGD-150
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
C
256K x 36
GS881E36BGD-333
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
C
256K x 36
GS881E36BGD-300
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
C
256K x 36
GS881E36BGD-250
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
C
256K x 36
GS881E36BGD-200
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
C
256K x 36
GS881E36BGD-150
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
C
512K x 18
GS881E18BGD-333I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
I
512K x 18
GS881E18BGD-300I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
I
512K x 18
GS881E18BGD-250I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
I
512K x 18
GS881E18BGD-200I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
I
512K x 18
GS881E18BGD-150I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
I
256K x 32
GS881E32BGD-333I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
I
256K x 32
GS881E32BGD-300I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
I
256K x 32
GS881E32BGD-250I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
I
256K x 32
GS881E32BGD-200I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
I
256K x 32
GS881E32BGD-150I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS881E18BT-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.04 3/2005
38/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
Ordering Information for GSI Synchronous Burst RAMs (Continued)
Org
Part Number1
Type
Package
Speed2
(MHz/ns)
TA3
256K x 36
GS881E36BGD-333I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
333/4.5
I
256K x 36
GS881E36BGD-300I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
300/5
I
256K x 36
GS881E36BGD-250I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
250/5.5
I
256K x 36
GS881E36BGD-200I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
200/6.5
I
256K x 36
GS881E36BGD-150I
DCD Pipeline/Flow Through
Pb-Free 165 BGA (var. 1)
150/7.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS881E18BT-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.04 3/2005
39/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology
GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)
9Mb Sync SRAM Datasheet Revision History
DS/DateRev. Code: Old;
New
Types of Changes
Format or Content
• Creation of new datasheet
881E18B_r1
881E18B_r1;
881E18B_r1_01
Page;Revisions;Reason
Content
• Added x32 TQFP
• Removed address and DQ number designations
881E18B_r1_01;
881E18B_r1_02
Content/Format
• Removed erroneous speed bins
• Added 333/300 MHz speed bins
• Basic format updates
• Removed Preliminary banner due to qualification of parts
881E18B_r1_02;
881E18B_r1_03
Content/Format
• Added Pb-free information to TQFP
• Added variation information to 165 BGA
881E18B_r1_03;
881E18B_r1_04
Content
Rev: 1.04 3/2005
• Added Pb-free information for 165 BGA
40/40
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology