SN74ACT7805

256

× 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY

SCAS201B – MARCH 1991 – REVISED APRIL 1998

9

POST OFFICE BOX 655303

recommended operating conditions

’ACT7805-15

’ACT7805-20

’ACT7805-25

’ACT7805-40

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

2

2

2

V

VIL

Low-level input voltage

0.8

0.8

0.8

0.8

V

IOH

High-level output current

Q outputs, flags

–8

–8

–8

–8

mA

IOL

Low level output current

Q outputs

16

16

16

16

mA

IOL

Low-level output current

Flags

8

8

8

8

mA

TA

Operating free-air temperature

0

70

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

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.