IS61LV256AL-10JLI-TR ISSI, Integrated Silicon Solution Inc, IS61LV256AL-10JLI-TR Datasheet

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IS61LV256AL-10JLI-TR

Manufacturer Part Number
IS61LV256AL-10JLI-TR
Description
IC SRAM 256KBIT 10NS 28SOJ
Manufacturer
ISSI, Integrated Silicon Solution Inc
Datasheet

Specifications of IS61LV256AL-10JLI-TR

Format - Memory
RAM
Memory Type
SRAM - Asynchronous
Memory Size
256K (32K x 8)
Speed
10ns
Interface
Parallel
Voltage - Supply
3.135 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOJ
Density
256Kb
Access Time (max)
10ns
Sync/async
Asynchronous
Architecture
Not Required
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
3.3V
Address Bus
15b
Package Type
SOJ
Operating Temp Range
-40C to 85C
Number Of Ports
1
Supply Current
25mA
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
28
Word Size
8b
Number Of Words
32K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
IS61LV256AL-10JLI-TR
Manufacturer:
ISSI
Quantity:
1 000
Part Number:
IS61LV256AL-10JLI-TR
Manufacturer:
ISSI
Quantity:
20 000
IS61LV256AL
FEATURES
• High-speed access times:
• Automatic power-down when chip is deselected
• CMOS low power operation
• TTL compatible interface levels
• Single 3.3V power supply
• Fully static operation: no clock or refresh
• Three-state outputs
• Lead-free available
FUNCTIONAL BLOCK DIAGRAM
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. C
07/29/09
32K x 8 LOW VOLTAGE
CMOS STATIC RAM
Copyright © 2006 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.
— 10 ns
— 60 µW (typical) CMOS standby
— 65 mW (typical) operating
required
I/O0-I/O7
A0-A14
GND
VDD
CE
OE
WE
DECODER
CIRCUIT
CONTROL
CIRCUIT
DATA
I/O
DESCRIPTION
The
32,768-word by 8-bit static RAM.It is fabricated using
high-performance CMOS technology. This highly reliable
process coupled with innovative circuit design techniques,
yields access times as fast as 8 ns maximum.
When CE is HIGH (deselected), the device assumes a
standby mode at which the power dissipation is reduced to
150 µW (typical) with CMOS input levels.
Easy memory expansion is provided by using an active
LOW Chip Enable (CE).The active LOWWrite Enable (WE)
controls both writing and reading of the memory.
The IS61LV256AL is available in the JEDEC standard
28-pin, 300-mil SOJ and the 450-mil TSOP (Type I) pack-
ages.
ISSI
MEMORY ARRAY
IS61LV256AL is a very high-speed, low power,
COLUMN I/O
32K X 8
AUGUST 2009
ISSI
's
1

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IS61LV256AL-10JLI-TR Summary of contents

Page 1

... CMOS input levels. Easy memory expansion is provided by using an active LOW Chip Enable (CE).The active LOWWrite Enable (WE) controls both writing and reading of the memory. The IS61LV256AL is available in the JEDEC standard 28-pin, 300-mil SOJ and the 450-mil TSOP (Type I) pack- ages. 32K X 8 ...

Page 2

... IS61LV256AL PIN CONFIGURATION 28-Pin SOJ A14 1 28 VDD 27 A12 A13 A11 A10 I/O7 I/ I/O6 I/ I/O5 16 I/O2 13 I/O4 GND 14 15 I/O3 PIN DESCRIPTIONS A0-A14 Address Inputs CE Chip Enable Input OE Output Enable Input Write Enable Input WE I/O0-I/O7Input/Output V Power dd GND Ground ABSOLUTE MAXIMUM RATINGS ...

Page 3

... IS61LV256AL OPERATING RANGE Range Ambient Temperature Commercial 0°C to +70°C Industrial –40°C to +85°C Note operated at 12ns, V range is 3. ELECTRICAL CHARACTERISTICS Symbol Parameter V Output HIGH Voltage oh V Output LOW Voltage ol V Input HIGH Voltage Ih V Input LOW Voltage ( Input Leakage ...

Page 4

... IS61LV256AL POWER SUPPLY CHARACTERISTICS Sym. Parameter Operating cc dd Supply Current Dynamic Operating cc dd Supply Current I TTL Standby Current 1 sb (TTL Inputs) I CMOS Standby 2 sb Current (CMOS Inputs) Notes address and data inputs are cycling at the maximum frequency means no input lines change. ...

Page 5

... IS61LV256AL READ CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Read Cycle Time rc t Address Access Time aa t Output Hold Time oha t CE Access Time ace t OE Access Time doe Low-Z Output (2) lzoe t ( High-Z Output hzoe Low-Z Output (2) lzce High-Z Output (2) hzce Power-Up (3) Pu ...

Page 6

... IS61LV256AL AC WAVEFORMS READ CYCLE NO. 1 (1,2) ADDRESS D OUT PREVIOUS DATA VALID READ CYCLE NO. 2 (1,3) ADDRESS LZCE HIGH-Z D OUT Notes HIGH for a Read Cycle. 2. The device is continuously selected. OE Address is valid prior to or coincident with CE LOW transitions OHA DOE t LZOE t ACE DATA VALID ...

Page 7

... IS61LV256AL WRITE CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Write Cycle Time Write End sce t Address Setup Time aw to Write End t Address Hold ha from Write End t Address Setup Time Pulse Width (OE HIGH) 1 Pwe t WE Pulse Width (OE LOW) 2 Pwe t Data Setup to Write End sd t Data Hold from Write End ...

Page 8

... IS61LV256AL WRITE CYCLE NO. 2 (WE Controlled HIGH During Write Cycle) ADDRESS OE CE LOW DATA UNDEFINED OUT D IN WRITE CYCLE NO. 3 (WE Controlled LOW During Write Cycle) ADDRESS OE LOW CE LOW DATA UNDEFINED OUT D IN Notes: 1. The internal write time is defined by the overlap of CE LOW and WE LOW. All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write ...

Page 9

... IS61LV256AL DATA RETENTION SWITCHING CHARACTERISTICS Symbol Parameter V V for Data Retention Data Retention Current dr t Data Retention Setup Time See Data Retention Waveform sdr t Recovery Time rdr Note: 1. Typical Values are measured 3.3V DATA RETENTION WAVEFORM (CE Controlled) t VDD GND Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev ...

Page 10

... Order Part No. 10 IS61LV256AL-10T IS61LV256AL-10TL IS61LV256AL-10J IS61LV256AL-10JL ORDERING INFORMATION Industrial Range: –40°C to +85°C Speed (ns) Order Part No. 10 IS61LV256AL-10TI IS61LV256AL-10TLI IS61LV256AL-10JI IS61LV256AL-10JLI 10 Package TSOP - Type I TSOP - Type I, Lead-free 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free Package TSOP - Type I TSOP - Type I, Lead-free ...

Page 11

... IS61LV256AL Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 07/29/09 11 ...

Page 12

... IS61LV256AL 12 Integrated Silicon Solution, Inc. — 1-800-379-4774 Rev. C 07/29/09 ...

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