10
FN8108.1
May 17, 2006
ABSOLUTE MAXIMUM RATINGS
Temperature under bias
X28HC256 .......................................-10°C to +85°C
X28HC256I, X28HC256M..............-65°C to +135°C
Storage temperature .........................-65°C to +150°C
Voltage on any pin with
respect to V
SS
........................................ -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) is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
D.C. OPERATING CHARACTERISTICS
(Over recommended operating conditions unless otherwise specified.)
Notes: (1) Typical values are for T
A
= 25°C and nominal supply voltage.
(2) V
IL
min. and V
IH
max. are for reference only and are not tested.
POWER-UP TIMING
Note:
(3) This parameter is periodically sampled and not 100% tested.
Symbol
I
CC
Parameter
Limits
Typ.
(7)
30
Unit
mA
Test Conditions
Min.
Max.
60
V
CC
active current (TTL
Inputs)
V
CC
standby current
(TTL Inputs)
V
CC
standby current
(CMOS Inputs)
Input leakage current
Output leakage current
Input LOW voltage
Input HIGH voltage
Output LOW voltage
Output HIGH voltage
CE = OE = V
IL
, WE = V
IH
, All I/O’s = open,
address inputs = .4V/2.4V levels @ f = 10MHz
CE = V
IH
, OE = V
IL
, All I/O’s = open, other
inputs = V
IH
CE = V
CC
- 0.3V, OE = GND, All I/Os = open,
other inputs = V
CC
- 0.3V
V
IN
= V
SS
to V
CC
V
OUT
= V
SS
to V
CC
, CE = V
IH
I
SB1
1
2
mA
I
SB2
200
500
μA
I
LI
I
LO
V
lL(2)
V
IH(2)
V
OL
V
OH
10
10
0.8
μA
μA
V
V
V
V
-1
2
V
CC
+ 1
0.4
I
OL
= 6mA
I
OH
= -4mA
2.4
Symbol
t
PUR(3)
t
PUW(3)
Parameter
Power-up to read
Power-up to write
Max.
100
5
Unit
μs
ms
RECOMMENDED OPERATING CONDITIONS
Temperature
Commercial
Industrial
Military
Min.
0°C
-40°C
-55°C
Max.
+70°C
+85°C
+125°C
Supply Voltage
X28HC256
Limits
5V ±10%
X28HC256