Datasheet
Table Of Contents
- BENEFITS AND FEATURES
- PIN CONFIGURATIONS
- ORDERING INFORMATION
- DESCRIPTION
- PIN DESCRIPTION
- OPERATION
- READING FROM THE CLOCK REGISTERS
- SPECIAL PURPOSE REGISTERS
- CONTROL REGISTER (READ 0Fh, WRITE 8Fh)
- TRICKLE CHARGE REGISTER (READ 11H, WRITE 91H)
- Figure 3. PROGRAMMABLE TRICKLE CHARGER
- POWER CONTROL
- Figure 4. POWER-SUPPLY CONFIGURATIONS
- SERIAL PERIPHERAL INTERFACE (SPI)
- ADDRESS AND DATA BYTES
- Figure 6. SPI SINGLE-BYTE WRITE
- Figure 7. SPI SINGLE-BYTE READ
- Figure 8. SPI MULTIPLE-BYTE BURST TRANSFER
- FUNCTION
- READING AND WRITING IN BURST MODE
- OPERATING RANGE
- RECOMMENDED DC OPERATING CONDITIONS (Over the operating range, unless otherwise specified.)
- DC ELECTRICAL CHARACTERISTICS (Over the operating range, unless otherwise specified.)
- CAPACITANCE (TA = +25C)
- Figure 10. TIMING DIAGRAM: 3-WIRE READ DATA TRANSFER
- SPI AC ELECTRICAL CHARACTERISTICS (Over the operating range, unless otherwise specified.) (Figure 12 and Figure 13)
- Figure 13. TIMING DIAGRAM: SPI WRITE DATA TRANSFER
- NOTES:
- REVISION HISTORY
DS1305
3-WIRE AC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.) (Figure 10 and Figure 11)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Data to CLK Setup t
DC
V
CC
= 2.0V
200
ns 3,4
V
CC
= 5V
50
CLK to Data Hold t
CDH
V
CC
= 2.0V
280
ns 3,4
V
CC
= 5V
70
CLK to Data Delay t
CDD
V
CC
= 2.0V
800
ns 3,4,5
V
CC
= 5V
200
CLK Low Time t
CL
V
CC
= 2.0V
1000
ns 4
V
CC
= 5V
250
CLK High Time t
CH
V
CC
= 2.0V
1000
ns 4
V
CC
= 5V
250
CLK Frequency t
CLK
V
CC
= 2.0V
0.6
MHz 4
V
CC
= 5V
DC
2.0
CLK Rise and Fall t
R,
t
F
V
CC
= 2.0V
2000
ns
V
CC
= 5V
500
CE to CLK Setup t
CC
V
CC
= 2.0V
4
μs 4
V
CC
= 5V
1
CLK to CE Hold t
CCH
V
CC
= 2.0V
240
ns 4
V
CC
= 5V
60
CE Inactive Time t
CWH
V
CC
= 2.0V
4
μs 4
V
CC
= 5V
1
CE to Output High-Z t
CDZ
V
CC
= 2.0V
280
ns 3,4
V
CC
= 5V
70
SCLK to Output High-Z t
CCZ
V
CC
= 2.0V
280
ns 3,4
V
CC
= 5V
70
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