CAT1021, CAT1022, CAT1023
BLOCK DIAGRAM
THRESHOLD VOLTAGE OPTION
EXTERNALLOAD
DOUT
ACK
VCC
VSS
WORDADDRESS
BUFFERS
COLUMN
DECODERS
SENSEAMPS
SHIFT REGISTERS
Part Dash
Number
-45
-42
-30
-28
-25
Minimum
Threshold
4.50
4.25
3.00
2.85
2.55
Maximum
Threshold
4.75
4.50
3.15
3.00
2.70
SDA
START/STOP
LOGIC
2kbit
EEPROM
XDEC
WP
(CAT1021)
CONTR
OL
LOGIC
DATA IN ST
ORAGE
HIGHVOLTAGE/
TIMING CONTR
OL
RESET Controller
Precision
MR
Vcc Monitor
STATE COUNTERS
SLA
VE
ADDRESS
COMP
ARATORS
SCL
RESET
(CAT1021/23)
RESET
WDI
(CAT1023)
PIN CONFIGURATION
DIP Package (L)
SOIC Package (W)
TSSOP Package (Y)
MSOP Package (Z)
¯¯¯
MR
¯¯¯¯¯¯
RESET
WP
V
SS
¯¯¯
MR
¯¯¯¯¯¯
RESET
NC
V
SS
¯¯¯
MR
¯¯¯¯¯¯
RESET
RESET
V
SS
1
2
3
4
1
2
3
4
1
2
3
4
CAT1023
CAT1022
CAT1021
8
7
6
5
8
7
6
5
8
7
6
5
V
CC
RESET
SCL
SDA
V
CC
NC
SCL
SDA
V
CC
WDI
SCL
SDA
(Bottom View)
TDFN Package: 3mm x 3mm
0.8mm maximum height - (ZD4)
V
CC
8
RESET 7
CAT1021
SCL 6
SDA 5
V
CC
8
NC 7
CAT1022
SCL 6
SDA 5
V
CC
8
WDI 7
CAT1023
SCL 6
SDA 5
1
¯¯¯
MR
¯¯¯¯¯¯
2
RESET
3 WP
4 V
SS
1
¯¯¯
MR
¯¯¯¯¯¯
2
RESET
3 NC
4 V
SS
1
¯¯¯
MR
¯¯¯¯¯¯
2
RESET
3 RESET
4 V
SS
Doc. No. 3009 Rev. L
2
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
CATALYST [ CATALYST SEMICONDUCTOR ]
