X46402V8-3.1 XICOR [Xicor Inc.], X46402V8-3.1 Datasheet - Page 16

• Manufacturer Part Number: X46402V8-3.1
• Description: Dual Voltage CPU Supervisor with 64K Password Protected EEPROM
• Manufacturer: XICOR [Xicor Inc.]

An easier way to determine that the password has been
changed correctly is to read the ACK bit following the
second writing of the new password. If the device returns
an ACK, the password is good. A No ACK indicates
something went wrong. If there was an error, the pass-
word remains unchanged.
There is no way to read any of the passwords.
ABSOLUTE MAXIMUM RATINGS*
Temperature under Bias . . . . . . . . . . . . –65°C to +135°C
Storage Temperature . . . . . . . . . . . . . . . –65°C to +150°C
Voltage on any Pin with respect to V
D.C. Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Lead Temperature (Soldering, 10 seconds) . . . . . .300°C
X46402
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
I
I
I
I
I
I
V
V
V
V
V
Symbol
CC1
CC2
SB1
SB2
LI
LO
IL1
IH1
IL2
IH2
OL
(1)
(1)
(2)
(2)
(3)
(2)
(2)
V
(Read)
V
(Write)
V
(Standby)
V
(Standby)
Input Leakage Current
Output Leakage Current
Input LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input HIGH Voltage
Output LOW Voltage
CC
CC
CC
CC
Supply Current
Supply Current
Supply Current
Supply Current
Parameter
SS
V
V
. . . . .–1V to +7V
CC
CC
Min.
–0.5
–0.5
x 0.7 V
x 0.9 V
Limits
V
V
CC
CC
CC
CC
Max.
0.4
50
10
10
1
3
1
+ 0.5
+ 0.5
x 0.3
x 0.1
16
Units
*COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and the functional operation of
the device at these or any other conditions above those
listed in the operational sections of this specification is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
mA
mA
µA
µA
µA
µA
V
V
V
V
V
Commercial
Extended
f
RESET = V2FAIL = V
V
f
RESET = V2FAIL = V
RST = V
V
f
V
Other = GND or V
V
V
V
V
V
V
I
SCL
SCL
SCL
OL
Temp
X46402
Device
2MON
IL
SDA
IN
OUT
CC
CC
CC
CC
= V
= 3mA
= V
= 1MHz,
= 1MHz,
= 1MHz, f
= 3.0V
= 3.0V
= 3.0V
= 3.0V
= V
= V
CC
= V
SS
SS
SCL
SS
x 0.1, V
to V
CC
Preliminary Information
to V
= V
CC
SDA
Test Conditions
CC
2MON
IH
CC
= 400 KHz
–20°C
Supply Voltage Limits
= V
Min.
–0.3V
0°C
CC
CC
= V
CC
w/ pull up resistor
w/ pull up resistor
2.5V to 3.7V
CC
x 0.9
+70°C
+85°C
Max.