ICSI IS61NW6432-6PQ 64k x 32 synchronous static ram with no-wait state bus feature Datasheet

IS61NW6432
IS61NW6432
64K x 32 SYNCHRONOUS STATIC RAM
WITH NO-WAIT STATE BUS FEATURE
FEATURES
• Fast access time:
— 5 ns-100 MHz; 6 ns-83 MHz;
— 7 ns-75 MHz; 8ns-66 MHz;
• No wait cycles between Read and write
• Internal self-timed write cycle
• Individual byte write Control
• Clock controlled, registered address, data and
control
• PentiumTM or Inear burst sequence control using
MODE input
• Three chip enables for simple depth depth
expansion and adress pipelining
• Common data inputs and data outputs
• JEDEC 100-pin LQFP and PQFP package
• Single+3.3V power supply
• Optional data strobe pin (#80) for latching data
(See page 12 for detailed timing)
DESCRIPTION
The IS61NW6432 is a high-speed, low-power synchronous
static RAM designed to provide a burstable, high-performance,
no-wait bus, secondary cache for the Pentium, 680X0, and
Power PC microprocessors. It is organized as 65,536 words
by 32 bits, fabricated with ICSI's advanced CMOS technology.
Incorporating a no-wait bus, 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.
All synchronous inputs pass through registers controlled by a
Positive-edge-trggered clock input. Operations may be suspended and all synchronous inputs ignored when Clock Enable,
CEN is HIGH. In this state the internal device will hold their
previous values.
When the ADV/LD is HIGH the internal burst counter is
incremented. New external addresses can be loaded when
ADV/LD is LOW.
Write cycles are internally self-timed and are initiated by the
rising edge of the clock inputs and when RD/WE is LOW.
Separate byte enables allow indiviual bytes to be written. BW1
controls I/O1-I/P8; BW2 controls I/O9-I/O16;BW3 controls I/
O17-I/O24; BW4 controls I/O25-I/O32. All Bytes are written
when BW1, BW2, BW3, and BW4 are LOW.
MODE pin upon power up is in interleave burst mode. It can be
connected to GND or VccQ to alter power up state.
ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors
which may appear in this publication. © Copyright 2000, Integrated Circuit Solution Inc.
Integrated Circuit Solution Inc.
SSR006-0B
1
IS61NW6432
BLOCK DIAGRAM
2
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
PIN CONFIGURATION
A6
A7
CE1
CE2
BW4
BW3
BW2
BW1
CE3
VCC
GND
CLK
R/W
CEN
OE
ADV/LD
NC
NC
A8
A9
100-Pin LQFP and PQFP (Top View)
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
80
1
79
2
78
3
77
4
76
5
75
6
74
7
73
8
72
9
71
10
70
11
69
12
68
13
67
14
66
15
65
16
64
17
63
18
62
19
61
20
60
21
59
22
58
23
57
24
56
25
55
26
54
27
53
28
52
29
51
30
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
NC
I/O16
I/O15
VCCQ
GNDQ
I/O14
I/O13
I/O12
I/O11
GNDQ
VCCQ
I/O10
I/O9
GND
VCC
VCC
GND
I/O8
I/O7
VCCQ
GNDQ
I/O6
I/O5
I/O4
I/O3
GNDQ
VCCQ
I/O2
I/O1
NC
MODE
A5
A4
A3
A2
A1
A0
NC
NC
GND
VCC
NC
NC
A10
A11
A12
A13
A14
A15
NC
NC
I/O17
I/O18
VCCQ
GNDQ
I/O19
I/O20
I/O21
I/O22
GNDQ
VCCQ
I/O23
I/O24
VCC
VCC
VCC
GND
I/O25
I/O26
VCCQ
GNDQ
I/O27
I/O28
I/O29
I/O30
GNDQ
VCCQ
I/O31
I/O32
NC
PIN DESCRIPTIONS
A0-A15
Address Inputs
I/O-I/O32
Data Input/Output
CLK
Clock
MODE
Burst Sequence Mode
CEN
Clock Enale
VCC
+3.3V Power Supply
ADV/CD
Advance Load
GND
Ground
BW1-BW4
Synchronous Byte Write Enable
VCCQ
R/W
Read / Write
Isolated Output Buffer Supply:
+3.3V
CE1, CE2, CE3
Synchronous Chip Enable
GNDQ
Isolated Output Buffer Ground
OE
Output Enable
NC
No Connect
DS
Data Strobe
Notes:
1. Optional, NC or DS.
Integrated Circuit Solution Inc.
SSR006-0B
3
IS61NW6432
TRUTH TABLE(1)
Operation
Address
Used
R/W
/W
CEx
ADV/LD
/LD
CEN
BW
BWx
CLK
Bein New Write Cycle
External
L
L
L
L
Valid
L-H
External
H
L
L
L
X
L-H
Advance Burst Counter
Internal
X
X
H
L
Valid
L-H
(Burst Write)
Advance Burst Counter
Internal
X
X
H
L
X
L-H
Deselect (2 Cycle)
X
X
H
L
L
X
L-H
Hold/NOOP
X
X
X
X
H
X
L-H
Begin New Read Cycle
(BurstRead)
"
Notes:
1. "X" Means don't care.
2. When ADV/LD signal is sampled HI|GH, the internal burst counter is incremented. The R/W signal is ignored when the counter
is advanced, Therefore, the nature of the burst cycle (Read or Write) is deternined by the status of the R/W signal when the
first address is loaded at the beginning of the burst cycle.
3. Deselect cycle is initiated when CEx is sampled HIGH and ADV/LD sampled LOW at rising edge of clock. The data bus will
tristate two cycles after deselect is initiated.
4. When CEN is sampled high at the rising edge of clock, that clock edge is blocked form propogating through the part. The state
of all the internal registers remains unchanged.
PARTIAL TRUTH TABLE(Non-burst)
Function
READ
WRITE Byte 1
WRITE Byte 2
WRITE Byte 3
WRITE Byte 4
WRITE All Bytes
GW
BW1
H
L
L
L
L
L
X
L
H
H
H
L
BW2 BW3
X
H
L
H
H
L
X
H
H
L
H
L
BW4
CEx
ADV/LD
/LD
X
H
H
H
L
L
L
L
L
L
L
X
L
L
L
L
L
L
FUNCTIONAL TIMING DIAGRAM
4
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
TYPICAL OPERATION
CE1, CE3 and CEN are LOW, CE2 is HIGH, Non-Burst Operation
Cycle
Address
R/W
ADV/LD
CEX
CEN
BWX
OE
I/O
Comments
n
A0
H
L
L
L
X
?
D-2
?
n+1
A1
L
L
L
L
L
?
D-1
?
n+2
A2
H
L
L
L
X
L
D0
Data Out
n+3
A3
L
L
L
L
L
X
D1
Data In
n+4
A4
H
L
L
L
X
L
D2
Data Out
n+5
A5
L
L
L
L
L
X
D3
Data In
n+6
A6
H
L
L
L
X
L
D4
Data Out
n+7
A7
L
L
L
L
L
X
D5
Data In
n+8
A8
H
L
L
L
X
L
D6
Data Out
n+9
A9
L
L
L
L
L
X
D7
Data In
n+10
A10
H
L
L
L
X
L
D8
Data Out
n+11
A11
H
L
L
L
X
X
D9
Data In
n+12
A12
L
L
L
L
L
L
D10
Data Out
n+13
A13
L
L
L
L
L
L
D11
Data Out
n+14
A14
H
L
L
L
X
X
D12
Data In
n+15
A15
H
L
L
L
X
X
D13
Data In
n+16
A16
H
L
L
L
X
L
D14
Data Out
n+17
A17
L
L
L
L
L
L
D15
Data Out
n+18
A18
L
L
L
L
L
L
D16
Data Out
n+19
A19
L
L
L
L
L
x
D17
Data In
n+20
A20
H
L
L
L
X
X
D18
Data In
n+21
A21
H
L
L
L
X
X
D19
Data In
Notes:
1. H=High; L=Low; X=Don't Care;?=Don't Know; Z=High lmpedance
Integrated Circuit Solution Inc.
SSR006-0B
5
IS61NW6432
READ OPERATION
Cycle Address R/W
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
Comments
n
A0
H
L
L
X
X
X
X
Address and Control meet setup
n+1
X
X
X
L
L
X
X
X
Clock Setup valid
n+2
X
X
X
X
X
X
L
D0
Contents of Address A0 Read Out
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
Comments
BURST READ OPERATION
Cycle Address R/W
n
A0
H
L
L
X
X
X
X
Address and Control meet setup
n+1
X
X
H
X
L
X
X
X
Clock Setup valid, Advance Counter
n+2
X
X
H
X
L
X
L
D0
Address A0 Read Out, Inc. Count
n+3
X
X
H
X
L
X
L
D0+1
Address A0+1 Read Out, Inc. Count
n+4
X
X
H
X
L
X
L
D0+2
Address A0+2 Read Out, Inc. Count
n+5
A1
H
L
L
L
X
L
D0+3
Address A0+3 Read Out, Load A1
n+6
X
X
H
X
L
X
L
D0
Address A0 Read Out, Inc. Count
n+7
X
X
H
X
L
X
L
D1
Address A1 Read Out, Inc. Count
n+8
A2
H
L
L
L
X
L
D0+1
Address A0+1 Read Out, Load A2
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
WRITE OPERATION
Cycle Address R/W
Comments
n
A0
L
L
L
L
L
X
X
Address and Control meet setup
n+1
X
X
X
L
L
X
X
X
Clock Setup valid
n+2
X
X
X
X
L
X
X
D0
Write D0 to Address A0
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
Comments
BURST WRITE OPERATION
Cycle Address R/W
n
A0
H
L
L
L
L
X
X
Address and Control meet setup
n+1
X
X
H
X
L
L
X
X
Clock Setup valid, Inc. Count
n+2
X
X
H
X
L
L
X
D0
n+3
X
H
H
L
L
X
L
D0+1
Address A0+1 Write Out, Inc. Count
n+4
X
X
H
X
L
L
X
D0+2
Address A0+2 Write Out, Inc. Count
n+5
A1
L
L
L
L
L
X
D0+3
Address A0+3 Write Out, Load A1
n+6
X
X
H
X
L
L
X
D0
Address A0 Write Out, Inc. Count
n+7
X
X
H
X
L
L
X
D1
Address A1 Write Out, Inc. Count
n+8
A2
L
L
L
L
L
X
D0+1
Address A0+1 Write Out, Load A2
Address A0 Write Out, Inc. Count
Notes:
1. H=High; L=Low; X=Don't Care;?=Don't Know; Z=High lmpedance
6
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
READ OPERATION WITH CLOCK ENABLE USED
Cycle Address R/W
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
Comments
n
A0
H
L
L
L
X
X
X
Address and Control meet setup
n+1
X
X
X
X
H
X
X
X
Clock n+1 lgnored
n+2
A1
H
L
L
L
X
X
X
Clock Valid
n+3
X
X
X
X
H
X
L
D0
Clock lgnored, Data D0 is on the bus
n+4
X
X
X
X
H
X
L
D0
Clock lgnored, Data D0 is on the bus
n+5
A2
H
L
L
L
X
L
D0
Address A0 Read Out (bus trans.)
n+6
A3
?
L
L
L
X
L
D1
Address A1 Read Out (bus trans.)
n+7
A4
?
L
L
L
X
L
D2
Address A2 Read Out (bus trans.)
Comments
READ OPERATION WITH CLOCK ENABLE USED
Cycle Address R/W
ADV/LD
LD
CEX
CEN
BWX
OE
I/O
n
A0
L
L
L
L
L
X
X
Address and Control meet setup
n+1
X
X
X
X
H
X
X
X
Clock n+1 lgnored
n+2
A1
L
L
L
L
L
X
X
Clock Valid
n+3
X
X
X
X
H
X
L
di
Clock lgnored.
n+4
X
X
X
X
H
X
L
di
Clock lgnored.
n+5
A2
L
L
L
L
L
L
D0
Write data D0 (bus trans.)
n+6
A3
?
L
L
L
L
L
D1
Write data D1 (bus trans.)
n+7
A4
?
L
L
L
L
L
D2
Write data D2 (bus trans.)
Notes:
1. H=High; L=Low; X=Don't Care;?=Don't Know; Z=High lmpedance
Integrated Circuit Solution Inc.
SSR006-0B
7
IS61NW6432
INTERLEAVED BURST ADDRESS TABLE (MODE=V++3 or No connect)
External Address
1st Burst Address
2nd Burst Address
3rd Burst Addres
A1 A0
A1 A0
A1 A0
A1 A0
00
01
10
11
01
00
11
10
10
11
00
01
11
10
01
00
LINEAR BURST ADDRESS TABLE (MODE=GND3)
0,0
A1’, A0’ = 1,1
0,1
1,0
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
TBIAS
TSTG
PD
IOUT
VIN, VOUT
VIN
Parameter
Temperature Under Bias
Storage Temperature
Power Dissipation
Output Current (per I/O)
Voltage Relative to GND for I/O Pins
Voltage Relative to GND for
for Address and Control Inputs
Value
–10 to +85
–55 to +150
1.8
100
–0.5 to VCCQ + 0.3
–0.5 to 5.5
Unit
°C
°C
W
mA
V
V
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.
8
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
OPERATING RANGE
Range
Commercial
Ambient Temperature
VCC
0°C to +70°C
3.3V +10%, –5%
DC ELECTRICAL CHARACTERISTICS(1) (Over Operating Range)
Symbol
Parameter
Test Conditions
Min.
Max.
Unit
VOH
Output HIGH Voltage
IOH = –5.0 mA
2.4
—
V
VOL
Output LOW Voltage
IOL = 5.0 mA
—
0.4
V
VIH
Input HIGH Voltage
1.7
VCCQ + 0.3
V
VIL
Input LOW Voltage
–0.3
0.8
V
ILI
Input Leakage Current
GND < VIN < VCCQ
Com.
–5
5
µA
ILO
Output Leakage Current
GND < VOUT < VCCQ, OE = VIH
Com.
–5
5
µA
POWER SUPPLY CHARACTERISTICS (Over Operating Range)
-5
Min.Typ. Max.
-6
-7
Min.Typ.Max. Min.Typ.Max.
Symbol Parameter
Test Conditions
ICC
AC Operating
Supply Current
Device Selected,
Com.
— — 230
All Inputs = VIL or VIH
OE = VIH,Cycle Time > tKC min.
— — 220
ISB
Standby Current
Device Deselected, Com.
VCC = Max.,
All Inputs= VIH or VIL
CLK Cycle Time > tKC min.
CEN=VIH
— — 60
— — 60
-8
Min.Typ.Max.
Unit
— — 210
— — 200
mA
— — 60
— — 60
mA
Note:
1. MODE pin has an internal pull up. This pin may be a No Connect, tied to GND, or tied to VCCQ.
2. MODE pin should be tied to Vcc or GND. It exhibit ±30 µA maximum leakage current when tied to < GND + 0.2V or > Vcc – 0.
2V.
Integrated Circuit Solution Inc.
SSR006-0B
9
IS61NW6432
CAPACITANCE(1,2)
Symbol
Parameter
CIN
Input Capacitance
COUT
Input/Output Capacitance
Conditions
Max.
Unit
VIN = 0V
6
pF
VOUT = 0V
8
pF
Notes:
1. Tested initially and after any design or process changes that may affect these parameters.
2. Test conditions: TA = 25°C, f = 1 MHz, Vcc = 3.3V.
AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Level
Output Load
Unit
0V to 3.0V
1.5 ns
1.5V
See Figures 1
AC TEST LOADS
317 Ω
3.3V
ZO = 50Ω
OUTPUT
Output
Buffer
30 pF
50Ω
1.5V
Figure 1
10
5 pF
Including
jig and
scope
351 Ω
Figure 2
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
READ /WRITE CYCLE SWITCHING CHARACTERISTICS (Over Operating Range)
Symbol
Parameter
fmax
Clock Frequency
tKC
-5
Max.
Min.
—
100
Cycle Time
10
tKH
Clock High Time
tKL
-6
-7
Max.
Min.
Unit
—
83
—
75
—
66
MHz
—
12
—
13
—
15
—
ns
4
—
4
—
6
—
6
—
ns
Clock Low Time
4
—
4
—
6
—
6
—
ns
Clock Access Time
—
5
—
6
—
7
—
8
ns
tKQX
Clock High to Output Invalid
1.5
—
1.5
—
1.5
—
1.5
—
ns
tKQLZ Clock High to Output Low-Z
2.0
—
2.0
—
2.0
—
2.0
—
ns
tKQHZ Clock High to Output High-Z
1.5
3.5
2
3.5
2
3.5
2
3.5
ns
tOEQ
Output Enable to Output Valid
—
5
—
6
—
6
—
6
ns
tOEQX
Output Disable to Output Invalid
0
—
0
—
0
—
0
—
ns
tOELZ Output Enable to Output Low-Z
0
—
0
—
0
—
0
—
ns
tOEHZ Output Disable to Output High-Z
—
3.5
—
3.5
—
3.5
—
3.5
ns
tAS
Address Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tWS
Read/Write Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tCES
Chip Enable Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tSE
Clock Enable Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tAVS
Address Advance Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tAE
Address Hold Time
0.5
—
0.5
—
0.5
—
0.5
—
ns
tHE
Clock EnableHold Time
0.5
—
0.5
—
0.5
—
0.5
—
ns
tWH
Write Hold Time
0.5
—
0.5
—
0.5
—
0.5
—
ns
tCEH
Chip Enable Hold Time
0.5
—
0.5
—
0.5
—
0.5
—
ns
tALS
Advance/Load (ADV/LD) Setup Time2.0
—
2.0
—
2.0
—
2.0
—
ns
tALH
Advance/Load (ADV/LD) Hold Time 0.5
—
0.5
—
0.5
—
0.5
—
ns
tds
Data Setup Time
2.0
—
2.0
—
2.0
—
2.0
—
ns
tdh
Data Hold Time
0.5
—
0.5
—
0.5
—
0.5
—
ns
tzp
I/O From Tri-State to Valid
1.5
—
1.5
2.5
1.5
2.5
1.5
2.5
ns
Max
-8
Min.
Max.
tKQ
Min.
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.
Integrated Circuit Solution Inc.
SSR006-0B
11
IS61NW6432
READ/WRITE CYCLE TIMING
12
Integrated Circuit Solution Inc.
SSR006-0B
IS61NW6432
ORDERING INFORMATION
Commercial Range: 0°C to +70°C
Frequency (MHz)
Order Part Number
Package
5
IS61NW6432-5TQ 14*20*1.4mm LQFP
IS61NW6432-5PQ 14*20*2.7mm PQFP
6
IS61NW6432-6TQ 14*20*1.4mm LQFP
IS61NW6432-6PQ 14*20*2.7mm PQFP
7
IS61NW6432-7TQ 14*20*1.4mm LQFP
IS61NW6432-7PQ 14*20*2.7mm PQFP
8
IS61NW6432-8TQ 14*20*1.4mm LQFP
IS61NW6432-8PQ 14*20*2.7mm PQFP
Integrated Circuit Solution Inc.
HEADQUARTER:
NO.2, TECHNOLOGY RD. V, SCIENCE-BASED INDUSTRIAL PARK,
HSIN-CHU, TAIWAN, R.O.C.
TEL: 886-3-5780333
Fax: 886-3-5783000
BRANCH OFFICE:
7F, NO. 106, SEC. 1, HSIN-TAI 5TH ROAD,
HSICHIH TAIPEI COUNTY, TAIWAN, R.O.C.
TEL: 886-2-26962140
FAX: 886-2-26962252
http://www.icsi.com.tw
Integrated Circuit Solution Inc.
SSR006-0B
13
IS61NW6432
14
Integrated Circuit Solution Inc.
SSR006-0B
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