IS41LV16257B-35TL-TR datasheet, PDF

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IS41LV16257B-35TL-TR: DescriptionFast Page DRAM, 256KX16, 35ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-40; Categorystorage storage; File Size190KB，20 Pages; ManufacturerIntegrated Silicon Solution ( ISSI ); Environmental Compliance

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IS41LV16257B-35TL-TR Overview

Fast Page DRAM, 256KX16, 35ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-40

IS41LV16257B-35TL-TR Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Integrated Silicon Solution ( ISSI )
Parts packaging code	TSOP2
package instruction	TSOP2,
Contacts	40
Reach Compliance Code	compliant
ECCN code	EAR99
access mode	FAST PAGE
Maximum access time	35 ns
Other features	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH
JESD-30 code	R-PDSO-G40
JESD-609 code	e3
length	18.41 mm
memory density	4194304 bit
Memory IC Type	FAST PAGE DRAM
memory width	16
Humidity sensitivity level	3
Number of functions	1
Number of ports	1
Number of terminals	40
word count	262144 words
character code	256000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	256KX16
Package body material	PLASTIC/EPOXY
encapsulated code	TSOP2
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.2 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	3 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	MATTE TIN
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	10.16 mm

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IS41LV16257B

256K x 16 (4-MBIT) DYNAMIC RAM

WITH FAST PAGE MODE

DESCRIPTION

The

ISSI

IS41LV16257B is 262,144 x 16-bit high-

performance CMOS Dynamic Random Access

Memories. Fast Page Mode allows 512 random

accesses within a single row with access cycle time as

short as 12 ns per 16-bit word. The Byte Write control,

of upper and lower byte, makes these devices ideal for

use in 16- and 32-bit wide data bus systems.

These features make the IS41LV16257B ideally suited

for high band-width graphics, digital signal processing,

high-performance computing systems, and peripheral

applications.

The IS41LV16257B is packaged in a 40-pin, 400-mil

SOJ and TSOP (Type II).

JUNE 2007

FEATURES

•

Fast access and cycle time

TTL compatible inputs and outputs

Refresh Interval: 512 cycles/8 ms

Refresh Mode:

RAS-Only, CAS-before-RAS

(CBR), and Hidden

JEDEC standard pinout

Single power supply: 3.3V ± 10%

Byte Write and Byte Read operation via

two

CAS

Lead-free available

KEY TIMING PARAMETERS

Parameter

Max.

RAS

Access Time (t

RAC

)

Max.

CAS

Access Time (t

CAC

)

Max. Column Address Access Time (t

)

Min. Fast Page Mode Cycle Time (t

)

Min. Read/Write Cycle Time (t

)

-35

-60

110

Unit

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.

Integrated Silicon Solution, Inc.

Rev. C

06/18/07

IS41LV16257B-35TL-TR Related Products

	IS41LV16257B-35TL-TR	IS41LV16257B-35TL	IS41LV16257B-35KLI	IS41LV16257B-60KL	IS41LV16257B-60TL	IS41LV16257B-60K	IS41LV16257B-60T
Description	Fast Page DRAM, 256KX16, 35ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-40	Fast Page DRAM, 256KX16, 35ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-40	Fast Page DRAM, 256KX16, 35ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, SOJ-40	Fast Page DRAM, 256KX16, 60ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, SOJ-40	Fast Page DRAM, 256KX16, 60ns, CMOS, PDSO40, 0.400 INCH, LEAD FREE, PLASTIC, TSOP2-40	Fast Page DRAM, 256KX16, 60ns, CMOS, PDSO40, 0.400 INCH, PLASTIC, SOJ-40	Fast Page DRAM, 256KX16, 60ns, CMOS, PDSO40, 0.400 INCH, PLASTIC, TSOP2-40
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	incompatible	incompatible
Maker	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )	Integrated Silicon Solution ( ISSI )
Parts packaging code	TSOP2	TSOP2	SOJ	SOJ	TSOP2	SOJ	TSOP2
package instruction	TSOP2,	TSOP2, TSOP40/44,.46,32	SOJ,	SOJ, SOJ40,.44	TSOP2, TSOP40/44,.46,32	0.400 INCH, PLASTIC, SOJ-40	0.400 INCH, PLASTIC, TSOP2-40
Contacts	40	40	40	40	40	40	40
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	unknown	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
access mode	FAST PAGE	FAST PAGE	FAST PAGE	FAST PAGE	FAST PAGE	FAST PAGE	FAST PAGE
Maximum access time	35 ns	35 ns	35 ns	60 ns	60 ns	60 ns	60 ns
Other features	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH
JESD-30 code	R-PDSO-G40	R-PDSO-G40	R-PDSO-J40	R-PDSO-J40	R-PDSO-G40	R-PDSO-J40	R-PDSO-G40
JESD-609 code	e3	e3	e3	e3	e3	e0	e0
length	18.41 mm	18.41 mm	26.035 mm	26.035 mm	18.41 mm	26.035 mm	18.41 mm
memory density	4194304 bit	4194304 bit	4194304 bit	4194304 bit	4194304 bit	4194304 bit	4194304 bit
Memory IC Type	FAST PAGE DRAM	FAST PAGE DRAM	FAST PAGE DRAM	FAST PAGE DRAM	FAST PAGE DRAM	FAST PAGE DRAM	FAST PAGE DRAM
memory width	16	16	16	16	16	16	16
Humidity sensitivity level	3	3	3	3	3	3	3
Number of functions	1	1	1	1	1	1	1
Number of ports	1	1	1	1	1	1	1
Number of terminals	40	40	40	40	40	40	40
word count	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words	262144 words
character code	256000	256000	256000	256000	256000	256000	256000
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	70 °C	70 °C	85 °C	70 °C	70 °C	70 °C	70 °C
organize	256KX16	256KX16	256KX16	256KX16	256KX16	256KX16	256KX16
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSOP2	TSOP2	SOJ	SOJ	TSOP2	SOJ	TSOP2
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE
Peak Reflow Temperature (Celsius)	260	260	260	260	260	NOT SPECIFIED	NOT SPECIFIED
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.2 mm	1.2 mm	3.75 mm	3.75 mm	1.2 mm	3.75 mm	1.2 mm
Maximum supply voltage (Vsup)	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	3 V	3 V	3 V	3 V	3 V	3 V	3 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	COMMERCIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal surface	MATTE TIN	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING	J BEND	J BEND	GULL WING	J BEND	GULL WING
Terminal pitch	0.8 mm	0.8 mm	1.27 mm	1.27 mm	0.8 mm	1.27 mm	0.8 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	40	40	40	40	40	NOT SPECIFIED	NOT SPECIFIED
width	10.16 mm	10.16 mm	10.16 mm	10.16 mm	10.16 mm	10.16 mm	10.16 mm
I/O type	-	COMMON	-	COMMON	COMMON	COMMON	COMMON
Output characteristics	-	3-STATE	-	3-STATE	3-STATE	3-STATE	3-STATE
Encapsulate equivalent code	-	TSOP40/44,.46,32	-	SOJ40,.44	TSOP40/44,.46,32	SOJ40,.44	TSOP40/44,.46,32
power supply	-	3.3 V	-	3.3 V	3.3 V	3.3 V	3.3 V
refresh cycle	-	512	-	512	512	512	512
self refresh	-	NO	-	NO	NO	NO	NO
Maximum standby current	-	0.001 A	-	0.001 A	0.001 A	0.001 A	0.001 A
Maximum slew rate	-	0.23 mA	-	0.17 mA	0.17 mA	0.17 mA	0.17 mA

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