M95128-DFMC6TG STMicroelectronics, M95128-DFMC6TG Datasheet - Page 22

• Manufacturer Part Number: M95128-DFMC6TG
• Description: EEPROM 128Kbit SPI EE 20 MHz 1.8 to 5.5
• Manufacturer: STMicroelectronics

Specifications of M95128-DFMC6TG

• Rohs: yes

Instructions
6.5
Figure 12. Read from Memory Array (READ) sequence
1. Depending on the memory size, as shown in
6.6
22/49
S
C
D
Q
Read from Memory Array (READ)
As shown in
low. The bits of the instruction byte and address bytes are then shifted in, on Serial Data
Input (D). The address is loaded into an internal address register, and the byte of data at
that address is shifted out, on Serial Data Output (Q).
If Chip Select (S) continues to be driven low, the internal address register is incremented
automatically, and the byte of data at the new address is shifted out.
When the highest address is reached, the address counter rolls over to zero, allowing the
Read cycle to be continued indefinitely. The whole memory can, therefore, be read with a
single READ instruction.
The Read cycle is terminated by driving Chip Select (S) high. The rising edge of the Chip
Select (S) signal can occur at any time during the cycle.
The instruction is not accepted, and is not executed, if a Write cycle is currently in progress.
Write to Memory Array (WRITE)
As shown in
low. The bits of the instruction byte, address byte, and at least one data byte are then shifted
in, on Serial Data Input (D).
The instruction is terminated by driving Chip Select (S) high at a byte boundary of the input
data. The self-timed Write cycle, triggered by the Chip Select (S) rising edge, continues for a
period t
end of which the Write in Progress (WIP) bit is reset to 0.
0
W
1
High Impedance
(as specified in AC characteristics in
2
Instruction
Figure
Figure
3
4
12, to send this instruction to the device, Chip Select (S) is first driven
13, to send this instruction to the device, Chip Select (S) is first driven
5
6
7
Table
MSB
15
8
Doc ID 5798 Rev 16
14 13
9 10
5, the most significant address bits are Don’t Care.
16-Bit Address
3
20 21 22 23 24 25 26 27
2
1
Section 9: DC and AC
0
MSB
7
6
M95128-W M95128-R M95128-DF
5
Data Out 1
4
3
28 29 30
2
1
parameters), at the
31
0
7
Data Out 2
AI01793D