19
FN8251.1
May 24, 2006
Notes: (1) The device enters the Active state after any start, and remains active until: 9 clock cycles later if the Device Select Bits in the Slave
Address Byte are incorrect; 200ns after a stop ending a read operation; or t
WC
after a stop ending a write operation.
(2) The device goes into Standby: 200ns after any stop, except those that initiate a high voltage write cycle; t
WC
after a stop that initiates a high
voltage cycle; or 9 clock cycles after any start that is not followed by the correct Device Select Bits in the Slave Address Byte.
(3) V
IL
Min. and V
IH
Max. are for reference only and are not tested.
(4) At 25°C, V
CC
= 3V
(5) See ordering information for standard programming levels. For custom programmed levels, contact factory.
(6) Based on characterization data.
EQUIVALENT INPUT CIRCUIT FOR VxMON (x = 1, 2, 3)
CAPACITANCE
V
CC
Supply
V
TRIP1
(5)
V
CC
Trip Point Voltage Range 2.0 4.75 V
4.55 4.6 4.65 V X40430, X40431-A, X40434,
X40435
4.35 4.4 4.45 V X40430, X40431-B
2.85 2.9 2.95 V X40430, X40431-C
Second Supply Monitor
I
V2
V2MON Current 15 µA
V
TRIP2
(5)
V2MON Trip Point Voltage Range 1.7
0.9
4.75
3.5
V
V
x40430, X40431
x40434, X40435
2.85 2.9 2.95 V X40430, X40431-A
2.55 2.6 2.65 V X40430, X40431-B
2.15 2.2 2.25 V X40430, X40431-C
1.25 1.3 1.35 V X40434, X40435-A&B
0.95 1.0 1.05 V X40434, X40435-C
t
RPD2
(6)
V
TRIP2
to V2FAIL 5µs
Third Supply Monitor
I
V3
V3MON Current 15 µA
V
TRIP3
(5)
V3MON Trip Point Voltage Range 1.7 4.75 V
1.65 1.7 1.75 V X40430, X40431
3.05 3.1 3.15 V X40434, X40435-A
2.85 2.9 2.95 V X40434, X40435-B&C
t
RPD3
(6)
V
TRIP3
to V3FAIL 5µs
D.C. OPERATING CHARACTERISTICS (Continued)
(Over the recommended operating conditions unless otherwise specified)
Symbol Parameter Min Typ
(4)
Max Unit Test Conditions
+
–
V
REF
t
RPDX
= 5µs worst case
Output Pin
VxMON
R
C
V = 100mV
V
V
ref
Symbol Parameter Max Unit Test Conditions
C
OUT
(1)
Output Capacitance (SDA, RESET/RESET, LOWLINE,
V2FAIL
,V3FAIL, WDO)
8pF V
OUT
= 0V
C
IN
(1)
Input Capacitance (SCL, WP, MR) 6 pF V
IN
= 0V
Note: (1) This parameter is not 100% tested.
X40430, X40431, X40434, X40435
