UT621024PC-35L 데이터 시트보기 (PDF) - Utron Technology Inc

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UT621024PC-35L

128K X 8 BIT LOW POWER CMOS SRAM

Utron Technology Inc 



UTRON

Rev. 1.5

UT621024

128K X 8 BIT LOW POWER CMOS SRAM

CAPACITANCE (TA=25℃, f=1.0MHz)

PARAMETER

SYMBOL

MIN.

MAX.

Input Capacitance

CIN

-

8

Input/Output Capacitance

CI/O

-

10

Note : These parameters are guaranteed by device characterization, but not production tested.

UNIT

pF

pF

AC TEST CONDITIONS

Input Pulse Levels

Input Rise and Fall Times

Input and Output Timing Reference Levels

Output Load

0V to 3.0V

5ns

1.5V

CL=100pF, IOH/IOL=-1mA/4mA

AC ELECTRICAL CHARACTERISTICS (VCC = 5V± 10% , TA = 0℃ to 70℃)

(1) READ CYCLE

PARAMETER

SYMBOL UT621024-35 UT621024-55 UT621024-70 UNIT

MIN. MAX. MIN. MAX. MIN. MAX.

Read Cycle Time

tRC

35

-

55

-

70

-

ns

Address Access Time

tAA

-

35

-

55

-

70 ns

Chip Enable Access Time

tACE1, tACE2

-

35

-

55

-

70 ns

Output Enable Access Time

tOE

-

25

-

30

-

35 ns

Chip Enable to Output in Low-Z tCLZ1*, tCLZ2* 10

-

10

-

10

-

ns

Output Enable to Output in Low-Z tOLZ*

5

-

5

-

5

- ns

Chip Disable to Output in High-Z tCHZ1*, tCHZ2* -

25

-

30

-

35 ns

Output Disable to Output in High-Z tOHZ*

-

25

-

30

-

35 ns

Output Hold from Address Change tOH

5

-

5

-

5

- ns

(2) WRITE CYCLE

PARAMETER

SYMBOL UT621024-

35

UT621024-55 UT621024-70

MIN. MAX. MIN. MAX. MIN. MAX.

Write Cycle Time

tWC

35

-

55

-

70

-

Address Valid to End of Write

tAW

30

-

50

-

60

-

Chip Enable to End of Write

tCW1, tCW2

30

-

50

-

60

-

Address Set-up Time

tAS

0

-

0

-

0

-

Write Pulse Width

tWP

25

-

40

-

45

-

Write Recovery Time

tWR

0

-

0

-

0

-

Data to Write Time Overlap

tDW

20

-

25

-

30

-

Data Hold from End of Write-Time tDH

0

-

0

-

0

-

Output Active from End of Write tOW*

5

-

5

-

5

-

Write to Output in High-Z

tWHZ*

-

15

-

20

-

25

*These parameters are guaranteed by device characterization, but not production tested.

UNIT

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

_________________________________________________________________________________________________

UTRON TECHNOLOGY INC.

P80036

1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.

TEL: 886-3-5777882 FAX: 886-3-5777919

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