CAT1021, CAT1022, CAT1023
Threshold Voltage Options
BLOCK DIAGRAM
Part Dash Minimum Maximum
Number Threshold Threshold
EXTERNAL LOAD
SENSE AMPS
SHIFT REGISTERS
-45
-42
-30
-28
-25
4.50
4.25
3.00
2.85
2.55
4.75
4.50
3.15
3.00
2.70
D
OUT
ACK
V
V
CC
SS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
START/STOP
SDA
LOGIC
2kbit
EEPROM
XDEC
CONTROL
LOGIC
WP
(CAT1021)
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
RESET Controller
STATE COUNTERS
SCL
Precision
SLAVE
MR
ADDRESS
COMPARATORS
Vcc Monitor
WDI
(CAT1023)
RESET
(CAT1021/23)
RESET
PIN CONFIGURATION
DIP Package (P, L)
SOIC Package (J, W)
TSSOP Package (U, Y)
MSOP Package (R, Z)
(Bottom View)
TDFN Package: 3mm x 3mm
0.8mm maximum height - (RD4, ZD4)
V
MR
1
2
3
4
8
7
6
5
8
7
6
5
1
2
3
4
CC
MR
V
CC
RESET
SCL
RESET
WP
RESET
RESET
CAT1021
CAT1021
WP
SCL
SDA
V
SS
V
SDA
SS
V
MR
1
2
3
4
8
7
6
5
8
1
CC
MR
RESET
NC
V
CC
NC
SCL
SDA
RESET
2
3
4
NC
7
6
5
CAT1022
CAT1023
CAT1022
NC
SCL
SDA
V
SS
V
SS
V
MR
1
8
7
6
5
1
8
7
6
5
MR
V
CC
CC
2
3
4
WDI
SCL
SDA
RESET
RESET
RESET 2
WDI
SCL
SDA
CAT1023
3
4
RESET
V
V
SS
SS
Doc. No. 3009, Rev. K
2
CATALYST [ CATALYST SEMICONDUCTOR ]
