CAT1021, CAT1022, CAT1023
http://onsemi.com
13
Figure 12. Sequential Read Timing
BUS ACTIVITY:
MASTER
SDA LINE
DATA n+xDATA n
A
C
K
A
C
K
DATA n+1
A
C
K
S
T
O
P
N
O
A
C
K
DATA n+2
A
C
K
P
SLAVE
ADDRESS
ORDERING INFORMATION
Orderable Part Numbers − CAT1021 Series
(See Notes 1 − 5)
Device Reset Threshold Package Shipping
CAT1021LI−45−G 4.50 V − 4.75 V
PDIP
3000 Tape & Reel
CAT1021LI−42−G 4.25 V − 4.50 V
CAT1021LI−30−G 3.00 V − 3.15 V
CAT1021LI−28−G 2.85 V − 3.00 V
CAT1021LI−25−G 2.55 V − 2.70 V
CAT1021WI−45−GT3 4.50 V − 4.75 V
SOIC
CAT1021WI−42−GT3 4.25 V − 4.50 V
CAT1021WI−30−GT3 3.00 V − 3.15 V
CAT1021WI−28−GT3 2.85 V − 3.00 V
CAT1021WI−25−GT3 2.55 V − 2.70 V
CAT1021YI−45−GT3 4.50 V − 4.75 V
TSSOP
CAT1021YI−42−GT3 4.25 V − 4.50 V
CAT1021YI−30−GT3 3.00 V − 3.15 V
CAT1021YI−28−GT3 2.85 V − 3.00 V
CAT1021YI−25−GT3 2.55 V − 2.70 V
CAT1021ZI−45−GT3 4.50 V − 4.75 V
MSOP
CAT1021ZI−42−GT3 4.25 V − 4.50 V
CAT1021ZI−30−GT3 3.00 V − 3.15 V
CAT1021ZI−28−GT3 2.85 V − 3.00 V
CAT1021ZI−25−GT3 2.55 V − 2.70 V
CAT1021ZD4I−45T3* 4.50 V − 4.75 V
TDFN
CAT1021ZD4I−42T3* 4.25 V − 4.50 V
CAT1021ZD4I−30T3* 3.00 V − 3.15 V
CAT1021ZD4I−28T3* 2.85 V − 3.00 V
CAT1021ZD4I−25T3* 2.55 V − 2.70 V
1. All packages are RoHS−compliant (Lead−free, Halogen−free).
2. The standard lead finish is NiPdAu.
3. For additional package and temperature options, please contact your nearest
ON Semiconductor Sales office.
4. TDFN not available in NiPdAu (–G) version.
5. For detailed information and a breakdown of device nomenclature and numbering
systems, please see the ON Semiconductor Device Nomenclature document,
TND310/D, available at www.onsemi.com
