AT28C64B
5. DC and AC Operating Range
AT28C64B-15
Operating Temperature (Case)
V CC Power Supply
6. Operating Modes
-40°C - 85°C
5V ± 10%
Mode
Read
Write (2)
Standby/Write Inhibit
Write Inhibit
Write Inhibit
Output Disable
Chip Erase
CE
V IL
V IL
V IH
X
X
X
V IL
OE
V IL
V IH
X (1)
X
V IL
V IH
V H (3)
WE
V IH
V IL
X
V IH
X
X
V IL
I/O
D OUT
D IN
High Z
High Z
High Z
Notes: 1. X can be V IL or V IH .
2. See “AC Write Waveforms” on page 8.
3. V H = 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 V CC + 0.6V
Voltage on OE and A9
with Respect to Ground ...................................-0.6V to +13.5V
8. DC Characteristics
*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
Symbol
I LI
I LO
I SB1
I SB2
I CC
Parameter
Input Load Current
Output Leakage Current
V CC Standby Current CMOS
V CC Standby Current TTL
V CC Active Current
Condition
V IN = 0V to V CC + 1V
V I/O = 0V to V CC
CE = V CC - 0.3V to V CC + 1V
CE = 2.0V to V CC + 1V
f = 5 MHz; I OUT = 0 mA
Min
Max
10
10
100
2
40
Units
μA
μA
μA
mA
mA
V IL
V IH
Input Low Voltage
Input High Voltage
2.0
0.8
V
V
V OL
V OH
Output Low Voltage
Output High Voltage
I OL = 2.1 mA
I OH = -400 μA
2.4
0.40
V
V
5
0270L–PEEPR–2/09
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