SN74ACT7806

256

× 18

STROBED FIRST-IN, FIRST-OUT MEMORY

SCAS438C – APRIL 1992 – REVISED APRIL 1998

6

POST OFFICE BOX 655303

–0.5 V to 7 V

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

–0.5 V to 7 V

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

Voltage range applied to a disabled 3-state output

–0.5 V to 5.5 V

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

Package thermal impedance,

74

°C/W

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

–65

°C to 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

’ACT7806-20

’ACT7806-25

’ACT7806-40

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

4.5

5.5

4.5

5.5

4.5

5.5

V

VIH

High-level input voltage

2

2

2

V

VIL

Low-level input voltage

0.8

0.8

0.8

V

IOH

High-level output current

Q outputs, flags

–8

–8

–8

mA

IOL

Low level output current

Q outputs

16

16

16

mA

IOL

Low-level output current

Flags

8

8

8

mA

TA

Operating free-air temperature

0

70

0

70

0

70

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP‡

MAX

UNIT

VOH

VCC = 4.5 V,

IOH = –8 mA

2.4

V

VOL

Flags

VCC = 4.5 V,

IOL = 8 mA

0.5

V

VOL

Q outputs

VCC = 4.5 V,

IOL = 16 mA

0.5

V

II

VCC = 5.5 V,

VI = VCC or 0

±5

µA

IOZ

VCC = 5.5 V,

VO = VCC or 0

±5

µA

ICC

VCC = 5.5 V,

VI = VCC – 0.2 V or 0

400

µA

∆ICC§

VCC = 5.5 V,

One input at 3.4 V,

Other inputs at VCC or GND

1

mA

Ci

VI = 0,

f = 1 MHz

4

pF

Co

VO = 0,

f = 1 MHz

8

pF

‡ All typical values are at VCC = 5 V, TA = 25°C.

§ This is the supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC.