AS7C251MPFD18A-166TQC datasheet, PDF

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AS7C251MPFD18A-166TQC: Description2.5V 1M x 18 pipelined burst synchronous SRAM; Categorystorage storage; File Size493KB，19 Pages; ManufacturerALSC [Alliance Semiconductor Corporation]

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AS7C251MPFD18A-166TQC Overview

2.5V 1M x 18 pipelined burst synchronous SRAM

AS7C251MPFD18A-166TQC Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	ALSC [Alliance Semiconductor Corporation]
Objectid	2004507045
Parts packaging code	QFP
package instruction	LQFP, QFP100,.63X.87
Contacts	100
Reach Compliance Code	unknow
ECCN code	3A991.B.2.A
compound_id	9608181
Maximum access time	3.5 ns
Other features	PIPELINED ARCHITECTURE
Maximum clock frequency (fCLK)	166 MHz
I/O type	COMMON
JESD-30 code	R-PQFP-G100
JESD-609 code	e0
length	20 mm
memory density	18874368 bi
Memory IC Type	STANDARD SRAM
memory width	18
Number of functions	1
Number of terminals	100
word count	1048576 words
character code	1000000
Operating mode	SYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	1MX18
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
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	2.5 V
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum standby current	0.04 A
Minimum standby current	2.38 V
Maximum slew rate	0.29 mA
Maximum supply voltage (Vsup)	2.625 V
Minimum supply voltage (Vsup)	2.375 V
Nominal supply voltage (Vsup)	2.5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	14 mm

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February 2005

AS7C251MPFD18A

2.5V 1M x 18 pipelined burst synchronous SRAM

Features

•

Organization: 1,048,576 x18 bits

Fast clock speeds to 166 MHz

Fast clock to data access: 3.5/3.8 ns

Fast OE access time: 3.5/3.8 ns

Fully synchronous register-to-register operation

Double-cycle deselect

Asynchronous output enable control

Available 100-pin TQFP package

•

Individual byte write and global write

Multiple chip enables for easy expansion

2.5V core power supply

Linear or interleaved burst control

Snooze mode for reduced power-standby

Common data inputs and data outputs

Logic block diagram

LBO

CLK

ADV

ADSC

ADSP

A[19:0]

CLK

CLR

Burst logic

Address

18 20

Memory

array

CLK

GWE

BWE

CE0

CE1

CE2

DQb

CLK

DQa

Byte Write

registers

Byte Write

registers

CLK

Enable

Output

registers

CLK

Input

registers

CLK

Power

down

Enable

delay

CLK

DQ[a,b]

Selection guide

-166

Minimum cycle time

Maximum clock frequency

Maximum clock access time

Maximum operating current

Maximum standby current

Maximum CMOS standby current (DC)

166

3.5

290

-133

7.5

133

3.8

270

Units

MHz

2/10/05, v. 1.2

Alliance Semiconductor

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AS7C251MPFD18A-166TQC Related Products

	AS7C251MPFD18A-166TQC	AS7C251MPFD18A	AS7C251MPFD18A-133TQIN	AS7C251MPFD18A-166TQCN	AS7C251MPFD18A-133TQI
Description	2.5V 1M x 18 pipelined burst synchronous SRAM	2.5V 1M x 18 pipelined burst synchronous SRAM	2.5V 1M x 18 pipelined burst synchronous SRAM	2.5V 1M x 18 pipelined burst synchronous SRAM	2.5V 1M x 18 pipelined burst synchronous SRAM
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	unknow	-	unknow	unknow	unknow
ECCN code	3A991.B.2.A	-	3A991.B.2.A	3A991.B.2.A	3A991.B.2.A
Maximum access time	3.5 ns	-	3.8 ns	3.5 ns	3.8 ns
Other features	PIPELINED ARCHITECTURE	-	PIPELINED ARCHITECTURE	PIPELINED ARCHITECTURE	PIPELINED ARCHITECTURE
Maximum clock frequency (fCLK)	166 MHz	-	133 MHz	166 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	e3	e0
length	20 mm	-	20 mm	20 mm	20 mm
memory density	18874368 bi	-	18874368 bi	18874368 bi	18874368 bi
Memory IC Type	STANDARD SRAM	-	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	18	-	18	18	18
Number of functions	1	-	1	1	1
Number of terminals	100	-	100	100	100
word count	1048576 words	-	1048576 words	1048576 words	1048576 words
character code	1000000	-	1000000	1000000	1000000
Operating mode	SYNCHRONOUS	-	SYNCHRONOUS	SYNCHRONOUS	SYNCHRONOUS
Maximum operating temperature	70 °C	-	85 °C	70 °C	85 °C
organize	1MX18	-	1MX18	1MX18	1MX18
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
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	-	245	245	NOT SPECIFIED
power supply	2.5 V	-	2.5 V	2.5 V	2.5 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	0.04 A	-	0.04 A	0.04 A	0.04 A
Minimum standby current	2.38 V	-	2.38 V	2.38 V	2.38 V
Maximum slew rate	0.29 mA	-	0.27 mA	0.29 mA	0.27 mA
Maximum supply voltage (Vsup)	2.625 V	-	2.625 V	2.625 V	2.625 V
Minimum supply voltage (Vsup)	2.375 V	-	2.375 V	2.375 V	2.375 V
Nominal supply voltage (Vsup)	2.5 V	-	2.5 V	2.5 V	2.5 V
surface mount	YES	-	YES	YES	YES
technology	CMOS	-	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL	-	INDUSTRIAL	COMMERCIAL	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)	-	MATTE TIN	MATTE TIN	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
Maximum time at peak reflow temperature	NOT SPECIFIED	-	30	30	NOT SPECIFIED
width	14 mm	-	14 mm	14 mm	14 mm

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Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

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