AT26DF041-MU ATMEL [ATMEL Corporation], AT26DF041-MU Datasheet - Page 14

• Manufacturer Part Number: AT26DF041-MU
• Description: 4-MEGABIT 3.0-VOLT ONLY OR 2.7-VOLT ONLY SERIAL FIRMWARE DATAFLASH-R
• Manufacturer: ATMEL [ATMEL Corporation]

13. Write Operations
Figure 13-1. Byte Program
Figure 13-2. Page Program
Each transition represents
14. Read Operations
Figure 14-1. Continuous Array Read
14
Each transition represents
8 bits and 8 clock cycles
8 bits and 8 clock cycles
CS
CS
SI
SI
AT26DF041
CS
SO
SI
CS
CMD
CMD
SI
Figure 12-3. Command Sequence for Read/Write Operations (except Status Register Read)
The following waveforms illustrate the various write sequences available.
The following waveform illustrates the read sequence available.
MSB
A23-A16
A23-A16
CMD
CMD
Don't Care byte not needed for Low Frequency read (03H opcode)
SI
A23-A16
A15-A8
A15-A8
X X X X
A23-A16
A23-A16
A15-A8
A7-A0
A7-A0
X X X X
CMD
A15-A8
A7-A0
X X X X
· Starts self-timed program operation
n
n
8 bits
A7-A0
ADDRESS BYTES
A15-A8
X
X X X X
n+1
n+1
8 bits
· Completes writing into selected buffer
· Completes writing into selected buffer
· Starts self-timed erase/program operation
· Starts self-timed erase/program operation
n
n
X X X X
8 bits
n+1
A7-A0
Last Byte
Last Byte
n = 1st byte read
n+1 = 2nd byte read
n = 1st byte read
n+1 = 2nd byte read
X X X X
3495B–DFLSH–8/05
LSB