CAT1027 CATALYST [Catalyst Semiconductor], CAT1027 Datasheet - Page 2

• Manufacturer Part Number: CAT1027
• Description: Dual Voltage Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM
• Manufacturer: CATALYST [Catalyst Semiconductor]

V SENSE
V SENSE
PIN CONFIGURATION
CAT1026, CAT1027
BLOCK DIAGRAM
Doc. No. 3010, Rev. K
V SENSE
RESET
V LOW
RESET
V LOW
V SS
V SS
TSSOP Package (U, Y)
MSOP Package (R, Z)
SOIC Package (J, W)
DIP Package (P, L)
1
2
3
4
Auxiliary Voltage Monitor
V CC
1
2
3
4
V REF
V CC Monitor
CAT1026
V REF
CAT1027
+
-
+
-
8
7
6
5
EXTERNAL LOAD
V CC
V SS
SDA
8
7
6
5
V CC
RESET
SCL
SDA
V CC
WDI
SCL
SDA
V LOW
(CAT1026)
RESET
Controller
START/STOP
RESET
LOGIC
CONTROL
WORD ADDRESS
LOGIC
RESET
BUFFERS
D OUT
ACK
0.8mm maximum height - (RD4, ZD4)
TDFN Package: 3mm x 3mm
RESET
XDEC
V CC
V CC
SDA
WDI
(CAT1027)
SDA
WDI
SCL
SCL
(Bottom View)
8
7
6
5
8
7
6
5
CAT1026
CAT1027
SHIFT REGISTERS
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
DATA IN STORAGE
TIMING CONTROL
HIGH VOLTAGE/
2
SENSE AMPS
DECODERS
COLUMN
EEPROM
2kbit
1
2
3
4
1
2
3
4
V LOW
RESET
V SENSE
V SS
V LOW
RESET
V SENSE
V SS
SCL
RESET Threshold Options
Part Dash
Number
-45
-42
-30
-28
-25
Threshold
Minimum
4.50
4.25
3.00
2.85
2.55
Threshold
Maximum
4.75
4.50
3.15
3.00
2.70