IS61WV20488ALL
IS61/64WV20488BLL
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est version of this device specification before relying on any published information and before placing orders for products.
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Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 1
Rev. C
06/23/2014
2M x 8 HIGH-SPEED CMOS STATIC RAM
June 2014
FEATURES
• High-speed access times:
8, 10, 20 ns
• High-performance,low-powerCMOSprocess
• Multiplecenterpowerandgroundpinsfor
greater noise immunity
• EasymemoryexpansionwithCE and OE op-
tions
• CE power-down
• Fullystaticoperation:noclockorrefresh
required
• TTLcompatibleinputsandoutputs
• Singlepowersupply
Vdd1.65Vto2.2V(IS61WV20488ALL)
speed = 20ns for Vcc = 1.65V to 2.2V
Vdd2.4Vto3.6V(IS61/64WV20488BLL)
speed = 10ns for Vcc = 2.4V to 3.6V
speed = 8ns for Vcc = 3.3V + 5%
• Packagesavailable:
48-ball miniBGA (9mm x 11mm)
–44-pinTSOP(TypeII)
• IndustrialandAutomotiveTemperatureSupport
• Lead-freeavailable
DESCRIPTION
TheISSIIS61WV20488ALL/BLLand
IS64WV20488BLLareveryhigh-speed,low
power,2M-wordby8-bitCMOSstaticRAM.The
IS61WV20488ALL/BLLandIS64WV20488BLLarefab-
ricated using ISSI'shigh-performanceCMOStechnol-
ogy.Thishighlyreliableprocesscoupledwithinnovative
circuit design techniques, yields higher performance
and low power consumption devices.
When CE is HIGH (deselected), the device assumes
a standby mode at which the power dissipation can be
reduceddownwithCMOSinputlevels.
TheIS61WV20488ALL/BLLandIS64WV20488BLL
operate from a single power supply and all inputs are
TTL-compatible.
TheIS61WV20488ALL/BLLandIS64WV20488BLLare
availablein48ballminiBGAand44-pinTSOP(TypeII)
packages.
FUNCTIONAL BLOCK DIAGRAM
A0-A20
CE
OE
WE
2M X 8
MEMORY ARRAY
DECODER
COLUMN I/O
CONTROL
CIRCUIT
GND
VDD
I/O
DATA
CIRCUIT
I/O0-I/O7
2 Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. C
06/23/2014
IS61WV20488ALL, IS61/64WV20488BLL
PIN DESCRIPTIONS
A0-A20 Address Inputs
CE ChipEnableInput
OE OutputEnableInput
WE WriteEnableInput
I/O0-I/O7DataInput/Output
Vdd Power
GND Ground
NC No Connection
48-pin Mini BGA (M ) (9mm x 11mm)
44-pin TSOP (Type II )
1 2 3 4 5 6
A
B
C
D
E
F
G
H
NC
NC
NC
GND
V
DD
NC
NC
A18
OE
NC
NC
NC
NC
NC
A19
A8
A0
A3
A5
A17
NC
A14
A12
A9
A1
A4
A6
A7
A16
A15
A13
A10
A2
CE
I/O1
I/O3
I/O4
I/O5
WE
A11
NC
I/O0
I/O2
V
DD
GND
I/O6
I/O7
A20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
NC
NC
A0
A1
A2
A3
A4
CE
I/O0
I/O1
VDD
GND
I/O2
I/O3
WE
A5
A6
A7
A8
A9
NC
NC
NC
NC
A20
A18
A17
A16
A15
OE
I/O7
I/O6
GND
VDD
I/O5
I/O4
A14
A13
A12
A11
A10
A19
NC
NC
44
43
42
41
PIN CONFIGURATION
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774 3
Rev. C
06/23/2014
IS61WV20488ALL, IS61/64WV20488BLL
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol Parameter Value Unit
Vterm TerminalVoltagewithRespecttoGND –0.5toVdd + 0.5 V
Vdd VddRelatestoGND –0.3to4.0 V
tstg StorageTemperature –65to+150 °C
Pt PowerDissipation 1.0 W
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specicationisnotimplied.Exposuretoabsolute
maximum rating conditions for extended periods may affect reliability.
TRUTH TABLE
Mode WE CE OE I/O Operation VDD Current
NotSelected X H X High-Z Isb1, Isb2
(Power-down)
OutputDisabledH L H High-Z Icc
Read H L L dout Icc
Write L L X dIn Icc
CAPACITANCE
(1,2)
Symbol Parameter Conditions Max. Unit
cIn Input Capacitance VIn = 0V 6 pF
c
I/o
Input/OutputCapacitance Vout = 0V 8 pF
Notes:
1.Testedinitiallyandafteranydesignorprocesschangesthatmayaffecttheseparameters.
2. Testconditions:T
a = 25°c, f=1MHz,Vdd = 3.3V.

IS61WV20488BLL-10MLI

Mfr. #:
Manufacturer:
ISSI
Description:
SRAM 16M (2Mx8) 10ns Async SRAM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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