TB62709N_06 Datasheet, PDF (7/28 Pages) Toshiba Semiconductor – 7−SEGMENT DRIVERS WITH BUILT−IN DECODERS (COMMON ANODE CAPABILITY, MAXIMUM 4−DIGIT CONTROL)

TB62709N/F
Load Register Selection modes (Table 2)
These modes select the register to provide the data to control the IC operation. The Load Register selection
mode is determined by the settings of D15 to D12 and D11 to D8 of the shift register.
1. Duty Register
: The data in D7 to D0 of this register set the digit output duty cycle.
Duty settings can be made in 16 steps from 0 / 16 to 15 / 16.
(See Table 3)
2. Decode & Digit Register : Sets Decode / No Decode and the number of digits to drive. Decode can be set
using D7 to D4.
The number of digits driven can be set using D3 to D0. Decode / No Decode and
the number of digits driven are set simultaneously.
3. Data registers 0 to 3
: Set the display data corresponding to DIG0 to DIG3 respectively.
D7 to D0 of the shift register are used to set the display data.
Table 2 Load register selection
D₁₅~D₁₂
D₁₁
LOAD DUTY REGISTER
2H
0
LOAD DECODE & DIGIT REGISTER
2H
0
LOAD DATA REGISTER 0
2H
0
LOAD DATA REGISTER 1
2H
0
LOAD DATA REGISTER 2
2H
0
LOAD DATA REGISTER 3
2H
0
REGISTER DATA
D₁₀
D₉
D₈
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
X = Input H or L.
D₇~D₄
X
X
X
X
X
X
D₃~D₀
X
X
X
X
X
X
HEX
CODE
20XXH
21XXH
22XXH
23XXH
24XXH
25XXH
7
2006-06-14