CAT1021, CAT1022, CAT1023
Preliminary Information
Threshold Voltage Options
BLOCK DIAGRAM
Part Dash Minimum Maximum
Number Threshold Threshold
EXTERNAL LOAD
SENSE AMPS
SHIFT REGISTERS
-45
-42
4.50
4.25
4.75
4.50
D
OUT
ACK
V
V
CC
SS
-30
-28
-25
3.00
2.85
2.55
3.15
3.00
2.70
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
(Bottom View)
TDFN Package: 3mm x 3mm
0.8mm maximum height - (RD4)
(Bottom View)
TDFN Package: 3mm x 4.9mm
0.8mm maximum height - (RD2)
PIN CONFIGURATION
V
MR
8
7
6
5
V
MR
1
2
3
4
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
5
MR
V
CC
CC
CC
RESET
SCL
RESET
WP
RESET
WP
RESET
RESET
RESET
SCL
CAT1021
CAT1021
CAT1021
WP
SCL
SDA
V
SDA
V
V
SDA
SS
SS
SS
V
MR
V
MR
8
1
1
2
3
4
1
8
7
6
5
8
7
6
5
MR
V
CC
CC
CC
2
3
4
NC
SCL
SDA
RESET
NC
NC
SCL
SDA
RESET
RESET 2
NC
7
6
5
CAT1022
CAT1022
CAT1022
NC
NC
3
4
SCL
SDA
V
SS
V
SS
V
SS
8
V
MR
1
V
MR
1
1
2
3
4
MR
V
8
8
7
6
5
CC
CC
CC
WDI
RESET
RESET
RESET 2
WDI
2
3
4
7
RESET
RESET
WDI
SCL
SDA
7
6
5
CAT1023
CAT1023
CAT1023
SCL
SDA
6
5
3
4
SCL
SDA
RESET
V
SS
V
V
SS
SS
Doc. No. 3009, Rev. E
2
CATALYST [ CATALYST SEMICONDUCTOR ]
