K7S3236T4C
K7S3218T4C
1Mx36 & 2Mx18 QDR
TM
II+ b4 SRAM
36Mb QDRII+ SRAM Specification
165 FBGA with Pb & Pb-Free
(RoHS compliant)
INFORMATION IN THIS DOCUMENT IS PROVIDED IN RELATION TO SAMSUNG PRODUCTS,
AND IS SUBJECT TO CHANGE WITHOUT NOTICE.
NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS GRANTING ANY LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE,
TO ANY INTELLECTUAL PROPERTY RIGHTS IN SAMSUNG PRODUCTS OR TECHNOLOGY.
ALL INFORMATION IN THIS DOCUMENT IS PROVIDED
ON AS "AS IS" BASIS WITHOUT GUARANTEE OR WARRANTY OF ANY KIND.
1. For updates or additional information about Samsung products, contact your nearest Samsung office.
2. Samsung products are not intended for use in life support, critical care, medical, safety equipment, or simi-
lar applications where Product failure could result in loss of life or personal or physical harm, or any military
or defense application, or any governmental procurement to which special terms or provisions may apply.
* Samsung Electronics reserves the right to change products or specification without notice.
-1-
Rev. 1.3 August 2008
K7S3236T4C
K7S3218T4C
Document Title
1Mx36-bit, 2Mx18-bit QDR
TM
II+ b4 SRAM
1Mx36 & 2Mx18 QDR
TM
II+ b4 SRAM
Revision History
Rev. No.
0.0
0.1
History
1. Initial document.
1. Change the DLL locking time
- Before: 1024 cycle
- After: 2048 cycle
1. Add comment Pb Free and Industrial
1. Change Max of clock cycle time
1. Change DC Characteristics, Pin Capacitance and Thermal Resis-
tance
1. Correct errors
1. Change Samsung JEDEC Code in ID REGISTER DEFINITION
1. Correct typo
1. Change programmable impedence output buffer operation
2. Add AC Timing Characteristics
1. Add AC/DC parameter 450MHz
1. Delete AC/DC parameter 450MHz
Draft Date
Nov. 2, 2005
Nov. 25, 2005
Remark
Advance
Preliminary
0.2
0.3
0.4
Mar. 03, 2006
Mar. 03, 2006
Apr. 25 2006.
Preliminary
Preliminary
Preliminary
0.5
0.6
1.0
1.1
May. 03 2006
Jun. 05, 2006
Aug. 21, 2006
Jan. 30, 2007
Preliminary
Preliminary
Final
Final
1.2
1.3
Mar. 16, 2007
Aug. 27, 2007
Final
Final
-2-
Rev. 1.3 August 2008
K7S3236T4C
K7S3218T4C
1Mx36 & 2Mx18 QDR
TM
II+ b4 SRAM
1Mx36-bit, 2Mx18-bit QDR
TM
II+ b4 SRAM
FEATURES
• 1.8V+0.1V/-0.1V Power Supply.
• DLL circuitry for wide output data valid window and future fre-
quency scaling.
• I/O Supply Voltage 1.5V+0.1V/-0.1V
• Separate independent read and write data ports
with concurrent read and write operation
• HSTL I/O
• Full data coherency, providing most current data .
• Synchronous pipeline read with self timed late write.
• Read latency: 2 clock cycles
• Registered address, control and data input/output.
• DDR(Double Data Rate) Interface on read and write ports.
• Fixed 4-bit burst for both read and write operation.
• Clock-stop supports to reduce current.
• Two input clocks(K and K) for accurate DDR timing at clock
rising edges only.
• Two echo clocks (CQ and CQ) to enhance output data
traceability.
• Data Valid pin(QVLD) supported
• Single address bus.
• Byte write (x18, x36) function.
• Separate read/write control pin(R and W)
• Simple depth expansion with no data contention.
• Programmable output impedance(ZQ).
• JTAG 1149.1 compatible test access port.
• 165FBGA(11x15 ball array) with body size of 15mmx17mm.
Organiza-
tion
X36
Part
Number
K7S3236T4C-F(E)C(I)45
K7S3236T4C-F(E)C(I)40
K7S3236T4C-F(E)C(I)33
K7S3236T4C-F(E)C(I)45
X18
K7S3218T4C-F(E)C(I)40
K7S3218T4C-F(E)C(I)33
Cycle Access
Unit
Time Time
2.22
2.5
3.0
2.22
2.5
3.0
0.45
0.45
0.45
0.45
0.45
0.45
ns
ns
ns
ns
ns
ns
* -F(E)C(I)
F(E) [Package type] : E-Pb Free, F-Pb
C(I) [Operating Temperature] : C-Commercial, I-Industrial
FUNCTIONAL BLOCK DIAGRAM
36 (or 18)
DATA
REG
18
(or 19)
WRITE/READ DECODE
D(Data in)
72(or 36)
WRITE DRIVER
72(or 36)
ADDRESS
18 (or 19)
ADD
REG
OUTPUT SELECT
R
W
BW
X
CTRL
LOGIC
4 (or 2)
1Mx36
(2Mx18)
MEMORY
ARRAY
SENSE AMPS
OUTPUT REG
72
(or 36)
144
(or 72)
OUTPUT DRIVER
QVLD
36 (or 18)
Q(Data Out)
CQ, CQ
72
(or 36)
K
K
(Echo Clock out)
CLK
GEN
SELECT OUTPUT CONTROL
Doff
Notes:
1. Numbers in ( ) are for x18 device
QDR SRAM and Quad Data Rate comprise a new family of products developed by Cypress, Renesas, IDT, NEC and Samsung technology.
-3-
Rev. 1.3 August 2008
K7S3236T4C
K7S3218T4C
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
CQ
Q27
D27
D28
Q29
Q30
D30
Doff
D31
Q32
Q33
D33
D34
Q35
TDO
2
NC/SA*
Q18
Q28
D20
D29
Q21
D22
V
REF
Q31
D32
Q24
Q34
D26
D35
TCK
3
NC/SA*
D18
D19
Q19
Q20
D21
Q22
V
DDQ
D23
Q23
D24
D25
Q25
Q26
SA
4
W
SA
V
SS
V
SS
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
SS
V
SS
SA
SA
5
BW
2
BW
3
SA
V
SS
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
V
SS
V
SS
SA
SA
SA
1Mx36 & 2Mx18 QDR
TM
II+ b4 SRAM
6
K
K
NC
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
SA
QVLD
NC
7
BW
1
BW
0
SA
V
SS
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
V
SS
V
SS
SA
SA
SA
8
R
SA
V
SS
V
SS
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
SS
V
SS
SA
SA
9
SA
D17
D16
Q16
Q15
D14
Q13
V
DDQ
D12
Q12
D11
D10
Q10
Q9
SA
10
NC/SA*
Q17
Q7
D15
D6
Q14
D13
V
REF
Q4
D3
Q11
Q1
D9
D0
TMS
11
CQ
Q8
D8
D7
Q6
Q5
D5
ZQ
D4
Q3
Q2
D2
D1
Q0
TDI
PIN CONFIGURATIONS
(TOP VIEW)
K7S3236T4C (1Mx36)
Notes :
1. * Checked No Connect(NC) pins are reserved for higher density address, i.e. 3A for 72Mb, 10A for 144Mb and 2A for 288Mb.
2. BW
0
controls write to D0:D8, BW
1
controls write to D9:D17, BW
2
controls write to D18:D26 and BW
3
controls write to D27:D35.
PIN NAME
SYMBOL
K, K
QVLD
CQ, CQ
Doff
SA
D0-35
PIN NUMBERS
6B, 6A
6P
11A, 1A
1H
9A,4B,8B,5C,7C,5N-7N,4P,5P,7P,8P,3R-5R,7R-9R
10P,11N,11M,10K,11J,11G,10E,11D,11C,10N,9M,9L
9J,10G,9F,10D,9C,9B,3B,3C,2D,3F,2G,3J,3L,3M,2N
1C,1D,2E,1G,1J,2K,1M,1N,2P
11P,10M,11L,11K,10J,11F,11E,10C,11B,9P,9N,10L
9K,9G,10F,9E,9D,10B,2B,3D,3E,2F,3G,3K,2L,3N
3P,1B,2C,1E,1F,2J,1K,1L,2M,1P
4A
8A
7B,7A,5A,5B
2H,10H
11H
5F,7F,5G,7G,5H,7H,5J,7J,5K,7K
4E,8E,4F,8F,4G,8G,3H,4H,8H,9H,4J,8J,4K,8K,4L,8L
4C,8C,4D-8D,5E-7E,6F,6G,6H,6J,6K,5L-7L,4M,8M,4N,8N
10R
11R
2R
1R
2A,3A,10A,6C,6R
DESCRIPTION
Input Clock
Q Valid output
Output Echo Clock
DLL Disable
Address Inputs
Data Inputs
NOTE
Q0-35
W
R
BW
0
, BW
1,
BW
2
, BW
3
V
REF
ZQ
V
DD
V
DDQ
V
SS
TMS
TDI
TCK
TDO
NC
Data Outputs
Write Control Pin,active when low
Read Control Pin,active when low
Block Write Control Pin,active when low
Input Reference Voltage
Output Driver Impedance Control Input
Power Supply (1.8 V)
Output Power Supply (1.5V)
Ground
JTAG Test Mode Select
JTAG Test Data Input
JTAG Test Clock
JTAG Test Data Output
No Connect
2
1
Notes:
1. When ZQ pin is directly connected to V
DD
output impedance is set to minimum value and it cannot be connected to ground or left unconnected.
2. Not connected to chip pad internally.
3. K, K can not be set to V
REF
voltage.
-4-
Rev. 1.3 August 2008
K7S3236T4C
K7S3218T4C
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
CQ
NC
NC
NC
NC
NC
NC
Doff
NC
NC
NC
NC
NC
NC
TDO
2
NC/SA*
Q9
NC
D11
NC
Q12
D13
V
REF
NC
NC
Q15
NC
D17
NC
TCK
3
SA
D9
D10
Q10
Q11
D12
Q13
V
DDQ
D14
Q14
D15
D16
Q16
Q17
SA
4
W
SA
V
SS
V
SS
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
SS
V
SS
SA
SA
5
BW
1
NC
SA
V
SS
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
V
SS
V
SS
SA
SA
SA
1Mx36 & 2Mx18 QDR
TM
II+ b4 SRAM
6
K
K
NC
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
V
SS
SA
QVLD
NC
7
NC
BW
0
SA
V
SS
V
SS
V
DD
V
DD
V
DD
V
DD
V
DD
V
SS
V
SS
SA
SA
SA
8
R
SA
V
SS
V
SS
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
DDQ
V
SS
V
SS
SA
SA
9
SA
NC
NC
NC
NC
NC
NC
V
DDQ
NC
NC
NC
NC
NC
NC
SA
10
NC/SA*
NC
Q7
NC
D6
NC
NC
V
REF
Q4
D3
NC
Q1
NC
D0
TMS
11
CQ
Q8
D8
D7
Q6
Q5
D5
ZQ
D4
Q3
Q2
D2
D1
Q0
TDI
PIN CONFIGURATIONS
(TOP VIEW)
K7S3218T4C (2Mx18)
Notes:
1. * Checked No Connect(NC) pins are reserved for higher density address, i.e. 10A for 72Mb and 2A for 144Mb.
2. BW
0
controls write to D0:D8 and BW
1
controls write to D9:D17.
PIN NAME
SYMBOL
K, K
QVLD
CQ, CQ
Doff
SA
D0-17
Q0-17
W
R
BW
0
, BW
1
V
REF
ZQ
V
DD
V
DDQ
V
SS
TMS
TDI
TCK
TDO
NC
PIN NUMBERS
6B, 6A
6P
11A, 1A
1H
3A,9A,4B,8B,5C,7C,5N-7N,4P,5P,7P,8P,3R-5R,7R-9R
10P,11N,11M,10K,11J,11G,10E,11D,11C,3B,3C,2D
3F,2G,3J,3L,3M,2N
11P,10M,11L,11K,10J,11F,11E,10C,11B,2B,3D,3E
2F,3G,3K,2L,3N,3P
4A
8A
7B, 5A
2H,10H
11H
5F,7F,5G,7G,5H,7H,5J,7J,5K,7K
4E,8E,4F,8F,4G,8G,3H,4H,8H,9H,4J,8J,4K,8K,4L,8L
4C,8C,4D-8D,5E-7E,6F,6G,6H,6J,6K,5L-7L,4M-8M,4N,8N
10R
11R
2R
1R
2A,7A,10A,1B,5B,9B,10B,1C,2C,6C,9C,1D,9D,10D,1E,2E,9E,1F
9F,10F,1G,9G,10G,1J,2J,9J,1K,2K,9K,1L,9L,10L,1M
2M,9M,1N,9N,10N,1P,2P,9P,6R
DESCRIPTION
Input Clock
Q Valid output
Output Echo Clock
DLL Disable
Address Inputs
Data Inputs
Data Outputs
Write Control Pin,active when low
Read Control Pin,active when low
Block Write Control Pin,active when low
Input Reference Voltage
Output Driver Impedance Control Input
Power Supply (1.8 V)
Output Power Supply (1.5V)
Ground
JTAG Test Mode Select
JTAG Test Data Input
JTAG Test Clock
JTAG Test Data Output
No Connect
2
1
NOTE
Notes:
1. When ZQ pin is directly connected to V
DD
output impedance is set to minimum value and it cannot be connected to ground or left unconnected.
2. Not connected to chip pad internally.
3. K, K can not be set to V
REF
voltage.
-5-
Rev. 1.3 August 2008
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