X40420 Datasheet, PDF (15/25 Pages) Xicor Inc. – Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch

X40420/X40421 – Preliminary
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_SS ......................................–1.0V to +7V
D.C. output current ............................................... 5mA
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
listed in the operational sections of this specification) is
not implied. Exposure to absolute maximum rating con-
ditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Temperature
Commercial
Industrial
Min.
0°C
–40°C
Max.
70°C
+85°C
Version Chip Supply Voltage
-A or -B
2.7V to 5.5V
-C
2.7V to 5.5V
*See ordering Info
Monitored
Voltages*
2.6 to 5.5V
1.6V to 3.6V
D.C. OPERATING CHARACTERISTICS
(Over the recommended operating conditions unless otherwise specified)
Symbol
Parameter
Min. Typ.⁽⁵⁾ Max. Unit Test Conditions
I_CC1⁽¹⁾ Active Supply Current (V_CC) Read
(Excludes I_OUT)
I_CC2⁽¹⁾ Active Supply Current (V_CC) Write Non
Volatile Memory (Excludes I_OUT)
I_SB1⁽¹⁾⁽⁷⁾ Standby Current (V_CC) AC (WDT off)
6
I_SB2⁽²⁾⁽⁷⁾ Standby Current (V_CC) DC (WDT on)
25
I_BATT1⁽³⁾⁽⁷⁾ V_BATT Current (Excludes I_OUT)
0.4
I_BATT2⁽⁷⁾ V_BATT Current (Excludes I_OUT)
(Battery Backup Mode)
V_OUT1⁽⁷⁾ Output Voltage (V_CC > V_BATT + 0.03V or V_CC–0.05V
V_CC > V_TRIP1)
V_CC–0.5V
1.5
mA V_IL = V_CC x 0.1
V_IH = V_CC x 0.9,
3.0
mA f_SCL = 400kHz
10
µA V_IL = V_CC x 0.1
VIH = V_CC x 0.9
f_SCL, f_SDA = 400kHz
30
µA V_SDA = V_SCL = V_CC
Others = GND or V_CC
1
µA V_OUT = V_CC
6
µA V_BATT = 2.8V
V_OUT = Open
V I_OUT = 5mA (4.5–5.5V)
I_OUT = 50mA (4.5–
5.5V)
V_OUT2⁽⁷⁾ Output Voltage (V_CC < V_BATT – 0.03V and V_BATT–0.2
V_CC < V_TRIP1) {Battery Backup}
V I_OUT = 250µA
V_OLB Output (BATT-ON) LOW Voltage
0.4
V I_OL = 3.0mA (4.5–5.5V)
V_OHB Output (BATT-ON) HIGH Voltage
V_OUT–0.8
V I_OH = -0.4mA (4.5–
5.5V)
V_BSH⁽⁷⁾ Battery Switch Hysteresis
(V_CC < V_TRIP1)
30
mV Power Up
-30
Power Down
I_LI
Input Leakage Current (SCL, MR, WP)
I_LO Output Leakage Current (SDA, V2FAIL,
WDO, RESET)
10
µA V_IL = GND to V_CC
10
µA V_SDA = GND to V_CC
Device is in Standby⁽²⁾
V_IL⁽³⁾
V_IH⁽³⁾
Input LOW Voltage (SDA, SCL, MR, WP)
-0.5
Input HIGH Voltage (SDA, SCL, MR, WP) V_CC x 0.7
V_CC x 0.3 V
V_CC + 0.5 V
REV 1.2.14 7/12/02
www.xicor.com
Characteristics subject to change without notice. 15 of 25