Rainbow Electronics AT28HC256 - Manual (Page 4)

AT28HC256
4
Notes: 1. X can be V
IL
or V
IH
.
2. Refer to AC programming waveforms.
3. V
H
= 12.0V ± 0.5V.
DC and AC Operating Range
AT28HC256-70 AT28HC256-90 AT28HC256-12
Operating
Temperature (Case)
Com. 0°C - 70°C 0°C - 70°C 0°C - 70°C
Ind. -40°C - 85°C -40°C - 85°C -40°C - 85°C
Mil. -55°C - 125°C -55°C - 125°C
V
CC
Power Supply 5V
± 10%
5V
± 10%
5V
± 10%
Operating Modes
Mode CE OE WE I/O
Read V
IL
V
IL
V
IH
D
OUT
Write (2) V
IL
V
IH
V
IL
D
IN
Standby/Write Inhibit V
IH
X (1) X High Z
Write Inhibit X X V
IH
Write Inhibit X V
IL
X
Output Disable X V
IH
X High Z
Chip Erase V
IL
V
H
(3) V
IL
High Z
DC Characteristics
Symbol Parameter Condition Min Max Units
I
LI
Input Load Current V
IN
= 0V to V
CC
+ 1V 10 µA
I
LO
Output Leakage Current V
I/O
= 0V to V
CC
10 µA
I
SB1
V
CC
Standby Current TTL CE = 2.0V to V
CC
AT28HC256-90, -12 3 mA
AT28HC256-70 60 mA
I
SB2
V
CC
Standby Current CMOS CE = V
CC
- 0.3V to V
CC
AT28HC256-90, -12 300 µA
I
CC
V
CC
Active Current f = 5 MHz; I
OUT
= 0 mA 80 mA
V
IL
Input Low Voltage 0.8 V
V
IH
Input High Voltage 2.0 V
V
OL
Output Low Voltage I
OL
= 6.0 mA 0.45 V
V
OH
Output High Voltage I
OH
= -4 mA 2.4 V