CAT1021, CAT1022, CAT1023
BLOCK DIAGRAM
THRESHOLD VOLTAGE OPTION
EXTERNAL LOAD
Part Dash
Number
Minimum
Threshold
Maximum
Threshold
SENSEAMPS
SHIFT REGISTERS
D
OUT
ACK
-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
V
CC
WORDADDRESS
BUFFERS
COLUMN
DECODERS
V
SS
START/STOP
SDA
LOGIC
2kbit
EEPROM
XDEC
CONTROL
LOGIC
WP
(CAT1021)
DATA IN STORAGE
HIGHVOLTAGE/
TIMING CONTROL
RESET Controller
STATE COUNTERS
SCL
Precision
Vcc Monitor
SLAVE
ADDRESS
COMPARATORS
MR
WDI
(CAT1023)
RESET
(CAT1021/23)
RESET
PIN CONFIGURATION
DIP Package (L)
(Bottom View)
SOIC Package (W)
TSSOP Package (Y)
MSOP Package (Z)
TDFN Package: 3mm x 3mm
0.8mm maximum height - (ZD4)
¯¯¯
MR
VCC
RESET
SCL
8
7
6
5
1
2
3
4
¯¯¯
MR
1
2
3
4
8
7
6
5
VCC
¯¯¯¯¯¯
RESET
CAT1021
CAT1022
CAT1023
¯¯¯¯¯¯
RESET
RESET
SCL
CAT1021
CAT1022
CAT1023
WP
VSS
WP
VSS
SDA
SDA
¯¯¯
MR
VCC
8
1
¯¯¯
MR
1
2
3
4
8
7
6
5
VCC
¯¯¯¯¯¯
RESET
NC
SCL
SDA
7
6
5
2
3
4
¯¯¯¯¯¯
RESET
NC
NC
VSS
NC
VSS
SCL
SDA
¯¯¯
MR
VCC
WDI
SCL
SDA
8
7
6
5
1
2
3
4
¯¯¯
MR
1
2
3
4
8
7
6
5
VCC
¯¯¯¯¯¯
RESET
¯¯¯¯¯¯
RESET
WDI
SCL
SDA
RESET
VSS
RESET
VSS
Doc. No. MD-3009 Rev. M
2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CATALYST [ CATALYST SEMICONDUCTOR ]
