5

0274L–PEEPR–2/3/09

AT28HC64B

Notes: 1. X can be VIL or VIH.

2. See “AC Write Waveforms” on page 8.

3. VH = 12.0 V ±0.5 V.

Note:

5. DC and AC Operating Range

AT28HC64B-70

AT28HC64B-90

AT28HC64B-120

Operating Temperature (Case)

-40°C - 85°C

-40°C - 85°C

-40°C - 85°C

5 V

±10%

5 V

±10%

5 V

±10%

6. Operating Modes

Mode

CE

OE

WE

I/O

Read

Write(2)

Standby/Write Inhibit

X(1)

X

High Z

Write Inhibit

X

X

Write Inhibit

X

X

Output Disable

X

X

High Z

Chip Erase

High Z

7. Absolute Maximum Ratings*

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

*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

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

All Input Voltages

(including NC Pins)

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

All Output Voltages

Voltage on OE and A9

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

8. DC Characteristics

Symbol

Parameter

Condition

Min

Max

Units

Input Load Current

10

µA

Output Leakage Current

10

µA

100(1)

µA

2(1)

mA

40

mA

Input Low Voltage

0.8

V

Input High Voltage

2.0

V

Output Low Voltage

0.40

V

Output High Voltage

2.4

V