AS7C33256NTF18B-65TQI datasheet, PDF

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AS7C33256NTF18B-65TQI: DescriptionZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100; Categorystorage storage; File Size427KB，18 Pages; ManufacturerALSC [Alliance Semiconductor Corporation]

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AS7C33256NTF18B-65TQI Overview

ZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100

AS7C33256NTF18B-65TQI Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	ALSC [Alliance Semiconductor Corporation]
Parts packaging code	QFP
package instruction	LQFP, QFP100,.63X.87
Contacts	100
Reach Compliance Code	unknown
ECCN code	3A991.B.2.A
Maximum access time	6.5 ns
Other features	FLOW-THROUGH ARCHITECTURE
Maximum clock frequency (fCLK)	133 MHz
I/O type	COMMON
JESD-30 code	R-PQFP-G100
JESD-609 code	e0
length	20 mm
memory density	4718592 bit
Memory IC Type	ZBT SRAM
memory width	18
Number of functions	1
Number of terminals	100
word count	262144 words
character code	256000
Operating mode	SYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256KX18
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Encapsulate equivalent code	QFP100,.63X.87
Package shape	RECTANGULAR
Package form	FLATPACK, LOW PROFILE
Parallel/Serial	PARALLEL
power supply	2.5/3.3,3.3 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum standby current	0.03 A
Minimum standby current	3.14 V
Maximum slew rate	0.25 mA
Maximum supply voltage (Vsup)	3.465 V
Minimum supply voltage (Vsup)	3.135 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	QUAD
width	14 mm
Base Number Matches	1

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February 2005

AS7C33256NTF18B

3.3V 256K x 18 Flowthrough Synchronous SRAM with NTD

Features

•

Organization: 262,144 words × 18 bits

NTD

™

architecture for efficient bus operation

Fast clock to data access: 6.5/7.5/8.0/10.0 ns

Fast OE access time: 3.5/4.0 ns

Fully synchronous operation

Flow-through mode

Asynchronous output enable control

Available in 100-pin TQFP package

•

Byte write enables

Clock enable for operation hold

Multiple chip enables for easy expansion

3.3V core power supply

2.5V or 3.3V I/O operation with separate V

DDQ

Self-timed write cycles

Interleaved or linear burst modes

Snooze mode for standby operation

Logic block diagram

A[17:0]

Address

burst logic

CLK

CE0

CE1

CE2

R/W

BWa

BWb

ADV / LD

LBO

CLK

Write delay

addr. registers

CLK

Control

logic

CLK

Write Buffer

256K x 18

SRAM

array

DQ [a,b]

Data

input

CLK

CEN

Output

buffer

DQ [a,b]

Selection guide

–65

Minimum cycle time

Maximum clock access time

Maximum operating current

Maximum standby current

Maximum CMOS standby current (DC)

7.5

6.5

290

120

-75

8.5

7.5

260

110

-80

8.0

230

100

-10

200

Units

2/8/05, v 1.2

Alliance Semiconductor

P. 1 of 18

AS7C33256NTF18B-65TQI Related Products

	AS7C33256NTF18B-65TQI	AS7C33256NTF18B-65TQIN	AS7C33256NTF18B-65TQCN	AS7C33256NTF18B-65TQC
Description	ZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100	ZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, LEAD FREE, TQFP-100	ZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, LEAD FREE, TQFP-100	ZBT SRAM, 256KX18, 6.5ns, CMOS, PQFP100, 14 X 20 MM, TQFP-100
Is it Rohs certified?	incompatible	conform to	conform to	incompatible
Maker	ALSC [Alliance Semiconductor Corporation]	ALSC [Alliance Semiconductor Corporation]	ALSC [Alliance Semiconductor Corporation]	ALSC [Alliance Semiconductor Corporation]
Parts packaging code	QFP	QFP	QFP	QFP
package instruction	LQFP, QFP100,.63X.87	LQFP, QFP100,.63X.87	LQFP, QFP100,.63X.87	LQFP, QFP100,.63X.87
Contacts	100	100	100	100
Reach Compliance Code	unknown	unknown	unknown	unknown
ECCN code	3A991.B.2.A	3A991.B.2.A	3A991.B.2.A	3A991.B.2.A
Maximum access time	6.5 ns	6.5 ns	6.5 ns	6.5 ns
Other features	FLOW-THROUGH ARCHITECTURE	FLOW-THROUGH ARCHITECTURE	FLOW-THROUGH ARCHITECTURE	FLOW-THROUGH ARCHITECTURE
Maximum clock frequency (fCLK)	133 MHz	133 MHz	133 MHz	133 MHz
I/O type	COMMON	COMMON	COMMON	COMMON
JESD-30 code	R-PQFP-G100	R-PQFP-G100	R-PQFP-G100	R-PQFP-G100
JESD-609 code	e0	e3/e6	e3/e6	e0
length	20 mm	20 mm	20 mm	20 mm
memory density	4718592 bit	4718592 bit	4718592 bit	4718592 bit
Memory IC Type	ZBT SRAM	ZBT SRAM	ZBT SRAM	ZBT SRAM
memory width	18	18	18	18
Number of functions	1	1	1	1
Number of terminals	100	100	100	100
word count	262144 words	262144 words	262144 words	262144 words
character code	256000	256000	256000	256000
Operating mode	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	85 °C	85 °C	70 °C	70 °C
organize	256KX18	256KX18	256KX18	256KX18
Output characteristics	3-STATE	3-STATE	3-STATE	3-STATE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LQFP	LQFP	LQFP	LQFP
Encapsulate equivalent code	QFP100,.63X.87	QFP100,.63X.87	QFP100,.63X.87	QFP100,.63X.87
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL	PARALLEL
power supply	2.5/3.3,3.3 V	2.5/3.3,3.3 V	2.5/3.3,3.3 V	2.5/3.3,3.3 V
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.6 mm	1.6 mm	1.6 mm	1.6 mm
Maximum standby current	0.03 A	0.03 A	0.03 A	0.03 A
Minimum standby current	3.14 V	3.14 V	3.14 V	3.14 V
Maximum slew rate	0.25 mA	0.25 mA	0.25 mA	0.25 mA
Maximum supply voltage (Vsup)	3.465 V	3.465 V	3.465 V	3.465 V
Minimum supply voltage (Vsup)	3.135 V	3.135 V	3.135 V	3.135 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	PURE MATTE TIN/TIN BISMUTH	PURE MATTE TIN/TIN BISMUTH	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	QUAD	QUAD	QUAD	QUAD
width	14 mm	14 mm	14 mm	14 mm
Base Number Matches	1	1	1	-

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