FT28HC256 datasheet(9/23 Pages) FORCE

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FT28HC256

Characteristics subject to change without notice.

9 of 23

REV 1.O

ABSOLUTE MAXIMUM RATINGS

Temperature under bias

FT28HC256 ...................................... –10°C to +85°C

FT28HC256I, FT28HC256M............. –65°C to +135°C

Storage temperature ........................ –65°C to +150°C

Voltage on any pin with

respect to VSS ........................................–1V to +7V

D.C. output current ............................................. 10mA

Lead temperature (soldering, 10 seconds)........ 300°C

COMMENT

Stresses above those listed under “Absolute Maximum

Ratings” may cause permanent damage to the device.

This is a stress rating only; functional operation of the

device (at these or any other conditions above those indi-

cated in the operational sections of this specification) i

not implied. Exposure to absolute maximum rating condi-

tions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

Temperature

Min.

Max.

Commercial

0°C

+70°C

Industrial

–40°C

+85°C

Military

–55°C

+125°C

Supply Voltage

Limits

FT28HC256

5V ±10%

D.C. OPERATING CHARACTERISTICS

(Over recommended operating conditions unless otherwise specified.)

Notes:

(1) Typical values are for TA = 25°C and nominal supply voltage.

(2) VIL min. and VIH max. are for reference only and are not tested.

POWER-UP TIMING

Note:

(3) This parameter is periodically sampled and not 100% tested.

Symbol

Parameter

Limits

Unit

Test Conditions

Min.

Typ.(7)

Max.

ICC

VCC active current

(TTL Inputs)

CE = OE = VIL, WE = VIH, All I/O’s = open,

address inputs = .4V/2.4V levels @ f = 10MHz

ISB1

VCC standby current

(TTL Inputs)

CE = VIH, OE = VIL, All I/O’s = open, other

inputs = VIH

ISB2

VCC standby current

(CMOS Inputs)

200

500

µA

CE = VCC – 0.3V, OE= GND, All I/Os = open,

other inputs = VCC – 0.3V

ILI

Input leakage current

µA

VIN = VSS to VCC

ILO

Output leakage current

µA

VOUT = VSS to VCC, CE = VIH

VlL(2)

Input LOW voltage

–1

0.8

VIH(2)

Input HIGH voltage

VCC + 1

VOL

Output LOW voltage

0.4

IOL = 6mA

VOH

Output HIGH voltage

2.4

IOH = –4mA

Symbol

Parameter

Max.

Unit

tPUR(3)

Power-up to read

100

µs

tPUW(3)

Power-up to write

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