S93C86B Datasheet, PDF (11/28 Pages) Seiko Instruments Inc – FOR AUTOMOTIVE 105C OPERATION

Rev.2.1_00
FOR AUTOMOTIVE 105°C OPERATION 3-WIRE SERIAL E²PROM
S-93C86B H Series
3. Reading (READ)
The READ instruction reads data from a specified address.
After CS has gone high, input an instruction in the order of the start bit, read instruction, and address. Since the last
input address (A₀) has been latched, the output status of the DO pin changes from high impedance (High-Z) to low,
which is held until the next rise of SK. 16-bit data starts to be output in synchronization with the next rise of SK.
3.1 Sequential read
After the 16-bit data at the specified address has been output, inputting SK while CS is high automatically
increments the address, and causes the 16-bit data at the next address to be output sequentially. The above
method makes it possible to read the data in the whole memory space. The last address (A₉  A₁ A₀ = 1 
1 1) rolls over to the top address (A₉  A₁ A₀ = 0  0 0).
CS
SK
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
26 27 28 29 30 31
42 43 44 45 46 47
DI
DO
<1> 1 0 A₉ A₈ A₇ A₆ A₅ A₄ A₃ A_{2 A1 A0}
High-Z
0 D15 D14 D13
D2 D1 D0 D15 D14 D13
D2 D1 D0 D15 D14 D13
High-Z
ADRINC
Figure 5 Read Timing
ADRINC
Seiko Instruments Inc.
11