K6T4008U1B-GB10 - Samsung

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

Document Title

512Kx8 bit Low Power and Low Voltage CMOS Static RAM

Revision History

Revision No.

0.0

1.0

2.0

Remark

Preliminary

Final

History

Initial draft

Finalize

- Change datasheet format

- Erase low power part from product

- Erase 70ns part from KM68U4000B family

- Power dissipation Improved 0.7 to 1.0W

- VIL(MAX) improved 0.4 to 0.6V.

- ICC2 decreased 50 to 45mA.

Revised

- ICC1 decreased 20 to 25mA

Draft Data

December 17, 1996

Januarary 14, 1998

February 12, 1998

The attached datasheets are provided by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the specifications and

products. SAMSUNG Electronics will answer to your questions about device. If you have any questions, please contact the SAMSUNG branch offices.

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

512K×8 bit Low Power and Low Voltage CMOS Static RAM

GENERAL DESCRIPTION

The K6T4008V1B and K6T4008U1B families are fabricated by

SAMSUNG′s advanced CMOS process technology. The fami-

lies support various operating temperature range and have var-

ious package type for user flexibility of system design. The

families also support low data retention voltage for battery

back-up operation with low data retention current.

FEATURES

• Process Technology: TFT

• Organization: 512K×8

• Power Supply Voltage

K6T4008V1B Family: 3.0~3.6V

K6T4008U1B Family: 2.7~3.3V

• Low Data Retention Voltage: 2V(Min)

• Three state output and TTL Compatible

• Package Type: 32-SOP, 32-TSOP2-400F/R

PIN DESCRIPTION

Name Function Name Function

CS Chip Select Input I/O1~I/O8Data Inputs/Outputs

OE Output Enable Input Vcc Power

WE Write Enable Input Vss Ground

A0~A18 Address Inputs

PRODUCT FAMILY

1. The paramerter is measured with 30pF test load.

Product Family Operating Temperature Vcc Range Speed Power Dissipation PKG Type

Standby

(ISB1, Max) Operating

(ICC2, Max)

K6T4008V1B-B Commercial(0~70°C) 3.0~3.6V 701)/851)/100ns 15µA

45mA 32-SOP

32-TSOP2-F/R

K6T4008U1B-B 2.7~3.3V 851)/100ns

K6T4008V1B-F Industrial(-40~85°C) 3.0~3.6V 851)/100ns 20µA

K6T4008U1B-F 2.7~3.3V

FUNCTIONAL BLOCK DIAGRAM

32-SOP

Forward

32-TSOP2

A16

A14

A12

I/O1

I/O2

I/O3

VSS

VCC

A15

A13

A11

A10

I/O8

I/O7

I/O6

I/O5

I/O4

32-TSOP2

A16

A14

A12

I/O1

I/O2

I/O3

VSS

VCC

A15

A13

A11

A10

I/O8

I/O7

I/O6

I/O5

I/O4

Reverse

A18

A17 A17

A18

SAMSUNG ELECTRONICS CO., LTD. reserves the right to change products and specifications without notice.

Precharge circuit.

Memory array

1024 rows

512×8 columns

I/O Circuit

Column select

Clk gen.

Row

select

A9 A8 A13A17A15 A11A10

A18

A16

A14

A12

I/O1Data

cont

Data

cont

I/O8

Control

logic

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

PRODUCT LIST

Note : LL means Low Low standby current

Commercial Temp Products(0~70°C) Industrial Temp Products(-40~85°C)

Part Name Function Part Name Function

K6T4008V1B-GB70

K6T4008V1B-GB80

K6T4008V1B-GB10

K6T4008V1B-VB70

K6T4008V1B-VB85

K6T4008V1B-VB10

K6T4008V1B-MB70

K6T4008V1B-MB85

K6T4008V1B-MB10

K6T4008U1B-GB85

K6T4008U1B-GB10

K6T4008U1B-VB85

K6T4008U1B-VB10

K6T4008U1B-MB85

K6T4008U1B-MB10

32-SOP, 70ns, 3.3V,LL

32-SOP, 85ns, 3.3V,LL

32-SOP, 100ns, 3.3V,LL

32-TSOP2-F, 70ns, 3.3V,LL

32-TSOP2-F, 85ns, 3.3V,LL

32-TSOP2-F, 100ns, 3.3V,LL

32-TSOP2-R, 70ns, 3.3V,LL

32-TSOP2-R, 85ns, 3.3V,LL

32-TSOP2-R, 100ns, 3.3V,LL

32-SOP, 85ns, 3.0V,LL

32-SOP, 100ns, 3.0V,LL

32-TSOP2-F, 85ns, 3.0V,LL

32-TSOP2-F, 100ns, 3.0V,LL

32-TSOP2-R, 85ns, 3.0V,LL

32-TSOP2-R, 100ns, 3.0V,LL

K6T4008V1B-GF85

K6T4008V1B-GF10

K6T4008V1B-VF85

K6T4008V1B-VF10

K6T4008V1B-MF85

K6T4008V1B-MF10

K6T4008U1B-GF85

K6T4008U1B-GF10

K6T4008U1B-VF85

K6T4008U1B-VF10

K6T4008U1B-MF85

K6T4008U1B-MF10

32-SOP, 85ns, 3.3V,LL

32-SOP, 100ns, 3.3V,LL

32-TSOP2-F, 85ns, 3.3V,LL

32-TSOP2-F, 100ns, 3.3V,LL

32-TSOP2-R, 85ns, 3.3V,LL

32-TSOP2-R, 100ns, 3.3V,LL

32-SOP, 85ns, 3.0V,LL

32-SOP, 100ns, 3.0V,LL

32-TSOP2-F, 85ns, 3.0V,LL

32-TSOP2-F, 100ns, 3.0V,LL

32-TSOP2-R, 85ns, 3.0V,LL

32-TSOP2-R, 100ns, 3.0V,LL

FUNCTIONAL DESCRIPTION

1. X means don′t care (Must be in low or high state)

CS OE WE I/O Mode Power

HX1) X1) High-Z Deselected Standby

LH H High-Z Output Disabled Active

L L HDout Read Active

LX1) LDin Write Active

ABSOLUTE MAXIMUM RATINGS1)

1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. Functional operation should be

restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Item Symbol Ratings Unit Remark

Voltage on any pin relative to Vss VIN,VOUT -0.5 to VCC+0.5 V-

Voltage on Vcc supply relative to Vss VCC -0.3 to 4.6 V-

Power Dissipation PD1W-

Storage temperature TSTG -65 to 150 °C-

Operating Temperature TA0 to 70 °CK6T4008V1B-L, K6T4008U1B-L

-40 to 85 °CK6T4008V1B-P, K6T4008U1B-P

Soldering temperature and time TSOLDER 260°C, 10sec (Lead Only) - -

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

RECOMMENDED DC OPERATING CONDITIONS1)

Note:

1. Commercial Product : TA=0 to 70°C, otherwise specified

Industrial Product : TA=-40 to 85°C, otherwise specified

2. Overshoot : VCC+3.0V in case of pulse width ≤ 30ns

3. Undershoot : -3.0V in case of pulse width ≤ 30ns

4. Overshoot and undershoot are sampled, not 100% tested.

Item Symbol Product Min Typ Max Unit

Supply voltage Vcc K6T4008V1B Family

K6T4008U1B Family 3.0

2.7 3.3

3.0 3.6

3.3 V

Ground Vss All Family 000V

Input high voltage VIH K6T4008V1B, K6T4008U1B Family 2.2 -Vcc+0.32) V

Input low voltage VIL K6T4008V1B, K6T4008U1B Family -0.33) -0.6 V

CAPACITANCE1) (f=1MHz, TA=25°C)

1. Capacitance is sampled, not 100% tested

Item Symbol Test Condition Min Max Unit

Input capacitance CIN VIN=0V -8pF

Input/Output capacitance CIO VIO=0V -10 pF

DC AND OPERATING CHARACTERISTICS

1. Industrial product = 20µA

Item Symbol Test Conditions Min Typ Max Unit

Input leakage current ILI VIN=Vss to Vcc -1 -1µA

Output leakage current ILO CS=VIH or OE=VIH or WE=VIL VIO=Vss to Vcc -1 -1µA

Operating power supply ICC IIO=0mA, CS=VIL, VIN=VIL or VIH, Read - - 10 mA

Average operating current ICC1 Cycle time=1µs, 100% duty, IIO=0mA, CS≤0.2V

VIN≤0.2V or VIN≥Vcc-0.2V Read - - 10 mA

Write - - 25

ICC2 Cycle time=Min, 100% duty, IIO=0mA, CS=VIL, VIN=VIH or VIL - - 45 mA

Output low voltage VOL IOL=2.1mA - - 0.4 V

Output high voltage VOH IOH=-1.0mA 2.2 - - V

Standby Current(TTL) ISB CS=VIH, Other inputs = VIL or VIH - - 0.5 mA

Standby ISB1 CS≥Vcc-0.2V, Other inputs=0~Vcc - - 151) µA

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

AC CHARACTERISTICS (K6T4008V1B Family: Vcc=3.0~3.6V, K6T4008U1B Family: Vcc=2.7~3.3V

Commercial product: TA=0 to 70°C, Industrial product: TA=-40 to 85°C)

Parameter List Symbol

Speed Bins

Units

70ns 85ns 100ns

Min Max Min Max Min Max

Read

Read cycle time tRC 70 -85 -100 -ns

Address access time tAA -70 -85 -100 ns

Chip select to output tCO -70 -85 -100 ns

Output enable to valid output tOE -35 -40 -50 ns

Chip select to low-Z output tLZ 10 -10 -10 -ns

Output enable to low-Z output tOLZ 5-5-5-ns

Chip disable to high-Z output tHZ 025 025 030 ns

Output disable to high-Z output tOHZ 025 025 030 ns

Output hold from address change tOH 10 -10 -15 -ns

Write

Write cycle time tWC 70 -85 -100 -ns

Chip select to end of write tCW 60 -70 -80 -ns

Address set-up time tAS 0-0-0-ns

Address valid to end of write tAW 60 -70 -80 -ns

Write pulse width tWP 55 -55 -70 -ns

Write recovery time tWR 0-0-0-ns

Write to output high-Z tWHZ 025 025 030 ns

Data to write time overlap tDW 30 -35 -40 -ns

Data hold from write time tDH 0-0-0-ns

End write to output low-Z tOW 5-5-5-ns

CL1)

1. Including scope and jig capacitance

AC OPERATING CONDITIONS

TEST CONDITIONS( Test Load and Input/Output Reference)

Input pulse level : 0.4 to 2.2V

Input rising and falling time : 5ns

Input and output reference voltage :1.5V

Output load(see right) : CL=100pF+1TTL

CL1)=30pF+1TTL

1. K6T4008V1B-7, K6T4008V1B-8 Family and K6T4008U1B-8 Family

DATA RETENTION CHARACTERISTICS

1. Industrial product = 20µA

Item Symbol Test Condition Min Typ Max Unit

Vcc for data retention VDR CS≥Vcc-0.2V 2.0 -3.6 V

Data retention current IDR Vcc=3.0V, CS≥Vcc-0.2V -0.5 151) µA

Data retention set-up time tSDR See data retention waveform 0- - ms

Recovery time tRDR 5- -

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

Address

Data Out Previous Data Valid Data Valid

TIMMING DIAGRAMS

TIMING WAVEFORM OF READ CYCLE(1) (Address Controlled, CS=OE=VIL, WE=VIH)

tAA

tRC

tOH

TIMING WAVEFORM OF READ CYCLE(2) (WE=VIH)

Data Valid

High-Z

Address

Data out

NOTES (READ CYCLE)

1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output voltage

levels.

2. At any given temperature and voltage condition, tHZ(Max.) is less than tLZ(Min.) both for a given device and from device to device

interconnection.

tOH

tAA

tOLZ

tLZ tOHZ

tHZ

tRC

tOE

tCO1

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

TIMING WAVEFORM OF WRITE CYCLE(1) (WE Controlled)

Address

tCW(2) tWR(4)

TIMING WAVEFORM OF WRITE CYCLE(2) (CS Controlled)

Address

tWC

tWR(4)

tAS(3)

tWP(1)

tDW tDH

tOW

tWHZ

Data Undefined

Data Valid

Data in

Data out

tDW tDH

Data Valid

Data in

Data out High-Z High-Z

tWC

tAW

tAS(3)

tCW(2)

tWP(1)

tAW

NOTES (WRITE CYCLE)

1. A write occurs during the overlap of a low CS and a low WE. A write begins at the latest transition among CS going Low and WE going

low : A write end at the earliest transition among CS going high and WE going high, tWP is measured from the begining of write to the

end of write.

2. tCW is measured from the CS going low to end of write.

3. tAS is measured from the address valid to the beginning of write.

4. tWR is measured from the end of write to the address change. tWR applied in case a write ends as CS or WE going high.

DATA RETENTION WAVE FORM

CS controlled

VCC

3.0/2.7V

2.2V

VDR

GND

Data Retention Mode

CS≥VCC - 0.2V

tSDR tRDR

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

PACKAGE DIMENSIONS Units : millimeter(inch)

32 PIN PLASTIC SMALL OUTLINE PACKAGE (525mil)

0~8°

#32

20.47±0.20

0.806±0.008

MAX

20.87

0.822 MAX

2.74±0.20

0.108±0.008

3.00

0.118

MIN

0.002

0.05

0.004 MAX

0.10 MAX

0.71

( )

0.028

13.34

0.525

11.43±0.20

0.450±0.008

0.80±0.20

0.031±0.008

+0.10

0.20 -0.05

+0.004

0.008

-0.002

14.12±0.30

0.556±0.012

#17

#16

1.27

0.050

+0.100

0.41 -0.050

+0.004

0.016 -0.002

K6T4008V1B, K6T4008U1B Family CMOS SRAM

Revision 2.0

February 1998

32 PIN THIN SMALL OUTLINE PACKAGE TYPE II (400F) 0~8°

#32

20.95±0.10

0.825±0.004

MAX

21.35

0.841

MAX

1.00±0.10

0.039±0.004

1.20

0.047

MIN

0.002

0.05

0.004 MAX

0.10 MAX

0.95

( )

0.037

10.16

0.400

+0.10

0.15 -0.05

+0.004

0.006 -0.002

11.76±0.20

0.463±0.008

#17

#16 0.50

( )

0.020

0.45~0.75

0.018 ~ 0.030

0.25

( )

0.010

1.27

0.050

0.40±0.10

0.016±0.004

PACKAGE DIMENSIONS

32 PIN THIN SMALL OUTLINE PACKAGE TYPE II (400R) 0~8°

#32

10.16

0.400

+0.10

0.15 -0.05

+0.004

0.006 -0.002

11.76±0.20

0.463±0.008

#17

#16

0.50

( )

0.020

0.45 ~0.75

0.018 ~ 0.030

0.25

( )

0.010

20.95±0.10

0.825±0.004

MAX

21.35

0.841

MAX

1.00±0.10

0.039±0.004

1.20

0.047

MIN

0.002

0.05

0.004 MAX

0.10 MAX

0.95

( )

0.037 1.27

0.050

0.40±0.10

0.016±0.004

Units : millimeter(inch)