IS61LV2568-8TI datasheet, PDF - EEWORLD Datasheet

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IS61LV2568-8TI: DescriptionStandard SRAM, 256KX8, 8ns, CMOS, PDSO44,; Categorystorage storage; File Size124KB，8 Pages; ManufacturerIntegrated Circuit Solution Inc.

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IS61LV2568-8TI Overview

Standard SRAM, 256KX8, 8ns, CMOS, PDSO44,

IS61LV2568-8TI Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Integrated Circuit Solution Inc.
package instruction	TSOP, TSOP44,.46,32
Reach Compliance Code	unknown
Maximum access time	8 ns
I/O type	COMMON
JESD-30 code	R-PDSO-G44
JESD-609 code	e0
memory density	2097152 bit
Memory IC Type	STANDARD SRAM
memory width	8
Number of terminals	44
word count	262144 words
character code	256000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256KX8
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	TSOP
Encapsulate equivalent code	TSOP44,.46,32
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	PARALLEL
power supply	3.3 V
Certification status	Not Qualified
Maximum standby current	0.015 A
Minimum standby current	3 V
Maximum slew rate	0.18 mA
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	0.8 mm
Terminal location	DUAL

IS61LV2568-8TI Preview

IS61LV2568

FEATURES

256K x 8 HIGH-SPEED CMOS STATIC RAM

High-speed access times:

8, 10, 12 and 15 ns

High-preformance, lower-power CMOS process

Multiple center power and ground pins for

greater noise immunity

Easy memory expansion with

and

options

power-down

CMOS power: 540 mW @ 10 ns

36 mW standby mode

TTL compatible inputs and outputs

Single 3.3V + 10% power supply

Packages available:

36-pin 400mil SOJ

44-pin TSOP-2

262,144-word by 8-bit COMS static RAM. The IS61LV2568 is

fabricated using

1+51

's high-performance CMOS technology.

This highly reliable process coupled with innovative circuit

design techniques, yields higher preformance and low power

consumotion devices.

When

is HIGH (deselected), the device assumes a standby

mode at which the power dissipation can be reduced down to

36 mW (max.) with CMOS input levels.

The IS61LV2568 operates from a single 3.3V power supply

and all inputs are TTL-compatible.

The IS61LV2568 is available in 36-pin, 400mil SOJ and 44-pin

TSOP-2 package.

DESCRIPTION

The

1+51

IS61LV2568 is a very high-speed, low power,

FUNCTIONAL BLOCK DIAGRAM

A0-A17

DECODER

256K X 8

MEMORY ARRAY

VCC

GND

I/O

DATA

CIRCUIT

I/O0-I/O7

COLUMN I/O

CONTROL

CIRCUIT

ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors

Integrated Circuit Solution, Inc.

SR026-0C

IS61LV2568

PIN CONFIGURATION

36-Pin SOJ

I/O0

I/O1

Vcc

GND

I/O2

I/O3

A17

A16

A15

A14

A13

I/O7

I/O6

GND

Vcc

I/O5

I/O4

A10

A11

A12

PIN CONFIGURATION

44-Pin TSOP-2

I/O0

I/O1

Vcc

GND

I/O2

I/O3

A17

A16

A15

A14

A13

I/O7

I/O6

GND

Vcc

I/O5

I/O4

A10

A11

A12

PIN DESCRIPTIONS

A0-A17

I/O0-I/O7

Vcc

GND

Address Inputs

Chip Enable Input

Output Enable Input

Write Enable Input

Input/Output

Power

Ground

No Connection

TRUTH TABLE

Mode

Not Selected

(Power-down)

Output Disabled

Read

Write

I/O Operation

High-Z

OUT

Vcc Current

, I

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol

TERM

BIAS

STG

OUT

Parameter

Power Supply Voltage Relative to GND

Terminal Voltage with Respect to GND

Temperature Under Bias

Storage Temperature

Power Dissipation

DC Output Current

Value

Unit

0.5 to +4.6

0.5 to Vcc + 0.5 V

10 to +85

°C

45 to +90

65 to +150

°C

±20

Com.

Ind.

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 specification is not implied.

Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Integrated Circuit Solution, Inc.

SR026-0C

IS61LV2568

OPERATING RANGE

Range

Commercial

Industrial

Ambient Temperature

0°C to +70°C

40°C to +85°C

3.3V + 10%

DC ELECTRICAL CHARACTERISTICS

(Over Operating Range)

Symbol

Parameter

Output HIGH Voltage

Output LOW Voltage

Input HIGH Voltage

Input LOW Voltage

Input Leakage

Output Leakage

GND

≤

GND

≤

OUT

≤

, Outputs Disabled

Com.

Ind.

Com.

Ind.

Test Conditions

= Min., I

= 4.0 mA

= Min., I

= 8.0 mA

Min.

2.4

2.0

0.3

Max.

0.4

+ 0.3

0.8

Unit

µA

Notes:

1. V

(min.) = 0.3V (DC); V

(min.) = 2.0V (pulse width

≤

2.0 ns).

(max.) = V

+ 0.3V (DC); V

(max.) = Vcc + 2.0V (pulse width

≤

2.0 ns).

2. The Vcc operating range for 8 ns is 3.3V +10%, -5%.

POWER SUPPLY CHARACTERISTICS

(1)

(Over Operating Range)

Sym.

Parameter

Test Conditions

Com.

Ind.

Com.

Ind.

Com.

Ind.

-8 ns

Min.

Max.

-10 ns

Min.

Max.

-12 ns

Min.

Max.

-15 ns

Min.

Max.

Unit

Vcc Dynamic Operating V

= Max.,

= V

Supply Current

OUT

= 0 mA, f = f

MAX

TTL Standby Current

(TTL Inputs)

= Max.,

= V

or V

≥

, f = 0

170

180

150

160

140

150

130

140

CMOS Standby

= Max.,

Current (CMOS Inputs)

≤

0.2V,

> V

0.2V, or

≤

0.2V, f = 0

Notes:

1. At f = f

MAX

, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.

CAPACITANCE

(1,2)

Symbol

OUT

Parameter

Input Capacitance

Output Capacitance

Conditions

= 0V

OUT

= 0V

Max.

Unit

Notes:

1. Tested initially and after any design or process changes that may affect these parameters.

2. Test conditions: T

= 25°C, f = 1 MHz, Vcc = 3.3V.

Integrated Circuit Solution, Inc.

SR026-0C

IS61LV2568

READ CYCLE SWITCHING CHARACTERISTICS

(1)

(Over Operating Range)

Symbol

Parameter

Read Cycle Time

Address Access Time

Output Hold Time

Access Time

Min. Max.

-8 ns

Min. Max.

-10 ns

Min. Max.

-12 ns

Min. Max.

-15 ns

Unit

OHA

ACE

DOE

LZOE

to Low-Z Output

HZOE

to High-Z Output

LZCE

to Low-Z Output

HZCE

to High-Z Output

Notes:

1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V,

input pulse levels of 0 to 3.0V and output loading specified in Figure 1.

2. Tested with the load in Figure 2. Transition is measured ±200 mV from steady-state voltage. Not

100% tested.

AC TEST CONDITIONS

Parameter

Input Pulse Level

Input Rise and Fall Times

Input and Output Timing

and Reference Levels

Output Load

Unit

0V to 3.0V

3 ns

1.5V

See Figures 1 and 2

Notes:

1. The Vcc operating range for 8 ns is 3.3V +10%, -5%.

AC TEST LOADS

319

Ω

3.3V

319

Ω

OUTPUT

30 pF

Including

jig and

scope

353

Ω

OUTPUT

5 pF

Including

jig and

scope

353

Ω

Figure 1.

Figure 2.

Integrated Circuit Solution, Inc.

SR026-0C

IS61LV2568

AC WAVEFORMS

READ CYCLE NO. 1

(1,2)

ADDRESS

OHA

OUT

PREVIOUS DATA VALID

OHA

DATA VALID

READ CYCLE NO. 2

(1,3)

ADDRESS

OHA

DOE

HZOE

LZOE

ACE

LZCE

HZCE

DATA VALID

OUT

HIGH-Z

Notes:

is HIGH for a Read Cycle.

2. The device is continuously selected.

OE, CE

= V

3. Address is valid prior to or coincident with

LOW transitions.

Integrated Circuit Solution, Inc.

SR026-0C

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IS61LV2568-8TI Related Products

	IS61LV2568-8TI	IS61LV2568-8K	IS61LV2568-8KI
Description	Standard SRAM, 256KX8, 8ns, CMOS, PDSO44,	Standard SRAM, 256KX8, 8ns, CMOS, PDSO36,	Standard SRAM, 256KX8, 8ns, CMOS, PDSO36,
Is it Rohs certified?	incompatible	incompatible	incompatible
Maker	Integrated Circuit Solution Inc.	Integrated Circuit Solution Inc.	Integrated Circuit Solution Inc.
package instruction	TSOP, TSOP44,.46,32	SOJ, SOJ36,.44	SOJ, SOJ36,.44
Reach Compliance Code	unknown	unknown	unknow
Maximum access time	8 ns	8 ns	8 ns
I/O type	COMMON	COMMON	COMMON
JESD-30 code	R-PDSO-G44	R-PDSO-J36	R-PDSO-J36
JESD-609 code	e0	e0	e0
memory density	2097152 bit	2097152 bit	2097152 bi
Memory IC Type	STANDARD SRAM	STANDARD SRAM	STANDARD SRAM
memory width	8	8	8
Number of terminals	44	36	36
word count	262144 words	262144 words	262144 words
character code	256000	256000	256000
Operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	85 °C	70 °C	85 °C
Minimum operating temperature	-40 °C	-	-40 °C
organize	256KX8	256KX8	256KX8
Output characteristics	3-STATE	3-STATE	3-STATE
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSOP	SOJ	SOJ
Encapsulate equivalent code	TSOP44,.46,32	SOJ36,.44	SOJ36,.44
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE
Parallel/Serial	PARALLEL	PARALLEL	PARALLEL
power supply	3.3 V	3.3 V	3.3 V
Certification status	Not Qualified	Not Qualified	Not Qualified
Maximum standby current	0.015 A	0.01 A	0.015 A
Minimum standby current	3 V	3 V	3 V
Maximum slew rate	0.18 mA	0.17 mA	0.18 mA
Nominal supply voltage (Vsup)	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES
technology	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	COMMERCIAL	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	J BEND	J BEND
Terminal pitch	0.8 mm	1.27 mm	1.27 mm
Terminal location	DUAL	DUAL	DUAL

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