CAT1022 CATALYST [Catalyst Semiconductor], CAT1022 Datasheet - Page 2

• Manufacturer Part Number: CAT1022
• Description: Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer
• Manufacturer: CATALYST [Catalyst Semiconductor]

PIN CONFIGURATION
BLOCK DIAGRAM
CAT1021, CAT1022, CAT1023
Doc. No. 3009, Rev. K
RESET
RESET
RESET
RESET
(CAT1021)
V SS
V SS
EXTERNAL LOAD
V CC
V SS
SDA
WP
V SS
MR
TSSOP Package (U, Y)
NC
MR
MR
MSOP Package (R, Z)
WP
SOIC Package (J, W)
MR
DIP Package (P, L)
1
2
3
4
1
2
3
4
1
2
3
4
(CAT1021/23)
CAT1023
CAT1022
CAT1021
START/STOP
RESET
LOGIC
CONTROL
WORD ADDRESS
LOGIC
RESET Controller
BUFFERS
D OUT
Vcc Monitor
Precision
ACK
8
7
6
5
8
7
6
5
8
7
6
5
V CC
RESET
SCL
SDA
RESET
V CC
V CC
WDI
SCL
SDA
V CC
NC
SCL
SDA
XDEC
WDI
(CAT1023)
SHIFT REGISTERS
STATE COUNTERS
SLAVE
ADDRESS
COMPARATORS
DATA IN STORAGE
TIMING CONTROL
HIGH VOLTAGE/
SENSE AMPS
DECODERS
COLUMN
EEPROM
0.8mm maximum height - (RD4, ZD4)
2kbit
TDFN Package: 3mm x 3mm
RESET
V CC
SDA
SCL
V CC
SDA
WDI
SCL
V CC
SDA
SCL
NC
(Bottom View)
8
7
6
5
8
7
6
5
8
7
6
5
2
SCL
CAT1022
CAT1023
CAT1021
1
2
3
4
1
2
3
4
1
2
3
4
MR
RESET
NC
V SS
MR
RESET
RESET
V SS
MR
RESET
WP
V SS
Threshold Voltage 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