IDT7280(1996) Просмотр технического описания (PDF) - Integrated Device Technology

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IDT7280
(Rev.:1996)

CMOS DUAL ASYNCHRONOUS FIFO DUAL 256 x 9, DUAL 512 x 9, DUAL 1024 x 9

Integrated Device Technology 

IDT7280/7281/7282 CMOS DUAL ASYNCHRONOUS FIFO

DUAL 256 x 9, DUAL 512 x 9 and DUAL 1K x 9

PRELIMINARY INFORMATION

COMMERCIAL TEMPERATURE RANGE

PIN CONFIGURATIONS

FFA

QA0

QA1

QA2

QA3

QA8

GND

RA

QA4

QA5

QA6

QA7

XOA/HFA

EFA

FFB

QB0

QB1

QB2

QB3

QB8

GND

RB

QB4

QB5

QB6

QB7

XOB/HFB

EFB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

S056-2

15

16

17

18

19

20

21

22

23

D24IP/SOIC/CERPACK

25

26

TOP VIEW

27

28

56 XIA

55 DA0

54 DA1

53 DA2

52 DA3

51

50

DA8

WA

49 VCC

48 DA4

47 DA5

46 DA6

45 DA7

44 FLA/RTA

43 RSA

42 XIB

41 DB0

40 DB1

39 DB2

38 DB3

37

36

DB8

WB

35 VCC

34 DB4

33 DB5

32 DB6

31 DB7

30

29

FLB/RTB

RSB

TSSOP

TOP VIEW

3208 drw 02

ABSOLUTE MAXIMUM RATINGS(1)

Symbol

VTERM

TA

TBIAS

TSTG

IOUT

Rating

Terminal Voltage

with Respect

to GND

Operating

Temperature

Temperature

Under Bias

Storage

Temperature

DC Output

Current

Com’l.

Unit

–0.5 to +7.0

V

0 to +70

°C

–55 to +125

°C

–55 to +125

°C

50

mA

NOTE:

3208 tbl 01

1. Stresses 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 reliabilty.

RECOMMENDED DC OPERATING

CONDITIONS

Symbol

Parameter

Min. Type

VCC

GND

VIH(1)

VIL(2)

Supply Voltage

Supply Voltage

Intput High Voltage

Intput Low Voltage

4.5 5.0

0

0

2.0 —

—

—

NOTE:

1. VIH = 2.6V for XI input (commercial).

2. 1.5V undershoots are allowed for 10ns once per cycle.

Max. Unit

5.5 V

0V

—V

0.8 V

3208 tbl 03

CAPACITANCE (TA = +25°C, f = 1.0 MHz)

Symbol

Parameter(1)

Condition Max. Unit

CIN

COUT

Input Capacitance VIN = 0V

Output Capacitance VOUT = 0V

8

pF

8

pF

NOTE:

1. This parameter is sampled and not 100% tested.

2679 tbl 02

DC ELECTRICAL CHARACTERISTICS

(Commercial: VCC = 5.0V±10%, TA = 0°C to +70°C)

IDT7280L

IDT7281L

IDT7282L

Commercial

tA = 15, 20, 25 ns

Symbol

ILI(1)

ILO(2)

Parameter

Min. Typ.

Input Leakage Current

(Any Input)

–1 —

Output Leakage Current –10 —

Max. Unit

1 µA

10 µA

VOH

Output Logic “1” Voltage 2.4 — — V

IOH = –2mA

VOL

Output Logic “0” Voltage —

IOL = 8mA

ICC1(3)

Active Power Supply

—

Current

ICC2(3)

Standby Current

—

(R=W=RS=FL/RT=VIH)

ICC3(L)(3) Power Down Current

—

(All Input = VCC - 0.2V)

— 0.4 V

— 125(4) mA

— 15 mA

— 0.5 mA

NOTES:

3208 tbl 05

1. Measurements with 0.4 ≤ VIN ≤ VCC.

2. R ≥ VIH, 0.4 ≤ VOUT ≤ VCC.

3. ICC measurements are made with outputs open (only capacitive loading).

4. Tested at f = 20MHz.

5.07

2

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