TSL2561CL TAOS, TSL2561CL Datasheet - Page 13

• Manufacturer Part Number: TSL2561CL
• Description: Light to Digital Converters Ambient Light Sensor Light to Digital
• Manufacturer: TAOS

Specifications of TSL2561CL

• Data Bus Width: 20 bit
• Peak Wavelength: 640 nm, 940 nm
• Maximum Operating Frequency: 780 KHz
• Operating Supply Voltage: 2.7 V to 3.6 V
• Operating Current: 0.6 mA to 15 uA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 30 C
• Interface Type: I2C
• Maximum Fall Time: 300 ns
• Maximum Rise Time: 300 ns
• Mounting Style: SMD/SMT
• Resolution: 16 bit
• Package / Case: Chip LED
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NOTE: The I
NOTE: The I
Register Set
The LUMENOLOGY r Company
1
S
1
S
The TSL256x is controlled and monitored by sixteen registers (three are reserved) and a command register
accessed through the serial interface. These registers provide for a variety of control functions and can be read
to determine results of the ADC conversions. The register set is summarized in Table 2.
The mechanics of accessing a specific register depends on the specific SMB protocol used. Refer to the section
on SMBus protocols. In general, the COMMAND register is written first to specify the specific control/status
register for following read/write operations.
Slave Address
Slave Address
Stop condition. See the Command Register on page 13 for additional information regarding the Block Read/Write protocol.
a Stop Condition. See the Command Register on page 13 for additional information regarding the Block Read/Write protocol.
2
2
C write protocol does not use the Byte Count packet, and the Master will continue sending Data Bytes until the Master initiates a
C read protocol does not use the Byte Count packet, and the Master will continue receiving Data Bytes until the Master initiates
7
7
ADDRESS
Figure 17. SMBus Block Read or I
Ah
Bh
Ch
Dh
Eh
−−
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
Fh
Wr
Wr
1
1
A
A
1
1
Figure 16. SMBus Block Write or I
THRESHHIGHHIGH
THRESHLOWHIGH
THRESHHIGHLOW
THRESHLOWLOW
RESISTER NAME
INTERRUPT
Command Code
Command Code
DATA0HIGH
DATA1HIGH
COMMAND
DATA0LOW
DATA1LOW
CONTROL
TIMING
CRC
−−
−−
−−
ID
Data Byte 1
8
8
r
8
Table 2. Register Address
www.taosinc.com
Specifies register address
Control of basic functions
Integration time/gain control
Low byte of low interrupt threshold
High byte of low interrupt threshold
Low byte of high interrupt threshold
High byte of high interrupt threshold
Interrupt control
Reserved
Factory test — not a user register
Reserved
Part number/ Rev ID
Reserved
Low byte of ADC channel 0
High byte of ADC channel 0
Low byte of ADC channel 1
High byte of ADC channel 1
A
A
1
1
A
1
Sr
1
2
C Read (Combined Format) Protocols
Byte Count = N
Slave Address
Data Byte 2
Data Byte 2
8
7
2
REGISTER FUNCTION
8
C Write Protocols
8
Rd
LIGHT-TO-DIGITAL CONVERTER
A
1
1
A
A
1
1
r
1
A
...
...
Data Byte 1
Byte Count = N
8
8
Data Byte N
Data Byte N
TSL2560, TSL2561
Copyright E 2009, TAOS Inc.
TAOS059N − MARCH 2009
8
8
A
1
1
A
...
...
1
A
1
A
1
1
1
P
P
13