SN74ACT2235-30PAG datasheet(8/18 Pages) TI

부품명	SN74ACT2235-30PAG

상세설명	1024 횞 9 횞 2 ASYNCHRONOUS BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

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8 / 18 page

SN74ACT2235

1024

× 9 × 2

ASYNCHRONOUS BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

SCAS148F – DECEMBER 1990 – REVISED JUNE 2003

8

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

SELECT-MODE CONTROL

CONTROL

OPERATION

SAB

SBA

A BUS

B BUS

L

Real-time B to A bus

Real-time A to B bus

L

H

FIFO B to A bus

Real-time A to B bus

H

L

Real-time B to A bus

FIFO A to B bus

H

FIFO B to A bus

FIFO A to B bus

OUTPUT-ENABLE CONTROL

CONTROL

OPERATION

GAB

GBA

A BUS

B BUS

H

A bus enabled

B bus enabled

L

H

A bus enabled

Isolation/input to B bus

H

L

Isolation/input to A bus

B bus enabled

L

Isolation/input to A bus

Isolation/input to B bus

Figure 2. Bus-Management Functions (Continued)

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC

–0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI: Control inputs

–0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I/O ports

–0.5 V to 5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range applied to a disabled 3-state output

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Note 1): FN package

46

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PAG package

58

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PM package

67

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum junction temperature, TJ

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The package thermal impedance is calculated in accordance with JESD 51.

recommended operating conditions

ACT2235-20

ACT2235-30

ACT2235-40

ACT2235-60

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

IOH

High level output current

A or B ports

–8

mA

IOH

High-level output current

Status flags

–8

mA

IOL

Low level output current

A or B ports

16

mA

IOL

Low-level output current

Status flags

8

mA

TA

Operating free-air temperature

0

70

0

70

0

70

0

70

°C

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SN74ACT2235-30PAG 데이터시트(PDF) 8 Page - Texas Instruments

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