AT28C256-15PI 查看數據表（PDF） - Atmel Corporation

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AT28C256-15PI

256K (32K x 8) Paged Parallel EEPROM

Atmel Corporation 

5. DC and AC Operating Range

Operating Temperature

(Case)

VCC Power Supply

Com.

Ind.

Mil.

AT28C256-15

0°C - 70°C

-40°C - 85°C

-55°C - 125°C

5V ± 10%

6. Operating Modes

Mode

CE

Read

VIL

Write(2)

VIL

Standby/Write Inhibit

VIH

Write Inhibit

X

Write Inhibit

X

Output Disable

X

Chip Erase

VIL

Notes: 1. X can be VIL or VIH.

2. Refer to AC programming waveforms.

3. VH = 12.0V ± 0.5V.

7. Absolute Maximum Ratings*

Temperature under Bias ................................ -55°C to +125°C

Storage Temperature ..................................... -65°C to +150°C

All Input Voltages

(including NC Pins)

with Respect to Ground ...................................-0.6V to +6.25V

All Output Voltages

with Respect to Ground .............................-0.6V to VCC + 0.6V

Voltage on OE and A9

with Respect to Ground ...................................-0.6V to +13.5V

AT28C256

AT28C256-20

0°C - 70°C

-40°C - 85°C

-55°C - 125°C

5V ± 10%

AT28C256-25

0°C - 70°C

-40°C - 85°C

-55°C - 125°C

5V ± 10%

AT28C256-35

-55°C - 125°C

5V ± 10%

OE

VIL

VIH

X(1)

X

VIL

VIH

VH(3)

WE

I/O

VIH

DOUT

VIL

DIN

X

High Z

VIH

X

X

High Z

VIL

High Z

*NOTICE:

Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam-

age to the device. This is a stress rating only and

functional operation of the device at these or any

other conditions beyond those indicated in the

operational sections of this specification is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect

device reliability

8. DC Characteristics

Symbol Parameter

Condition

Min

ILI

Input Load Current

VIN = 0V to VCC + 1V

ILO

Output Leakage Current

VI/O = 0V to VCC

Com., Ind.

ISB1

VCC Standby Current CMOS CE = VCC - 0.3V to VCC + 1V Mil.

ISB2

VCC Standby Current TTL

CE = 2.0V to VCC + 1V

ICC

VCC Active Current

f = 5 MHz; IOUT = 0 mA

VIL

Input Low Voltage

VIH

Input High Voltage

2.0

VOL

Output Low Voltage

IOL = 2.1 mA

VOH

Output High Voltage

IOH = -400 µA

2.4

0006I–PEEPR–4/05

Max

Units

10

µA

10

µA

200

µA

300

µA

3

mA

50

mA

0.8

V

V

0.45

V

V

5

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