A25L040O-F AMIC, A25L040O-F Datasheet - Page 23

• Manufacturer Part Number: A25L040O-F
• Description: 58T1309
• Manufacturer: AMIC

Specifications of A25L040O-F

• Memory Type: Flash
• Memory Size: 4Mbit
• Memory Configuration: 4M X 1
• Interface Type: Serial, SPI
• Clock Frequency: 100MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes

Read Device Identification (RDID)
The Read Identification (RDID) instruction allows the 8-bit
manufacturer identification code to be read, followed by two
bytes of device identification. The manufacturer identification
is assigned by JEDEC, and has the value 37h. The device
identification is assigned by the device manufacturer, and
indicates the memory in the first bytes (30h), and the memory
capacity of the device in the second byte (13h for A25L040).
Any Read Identification (RDID) instruction while an Erase, or
Program cycle is in progress, is not decoded, and has no
effect on the cycle that is in progress.
The device is first selected by driving Chip Select (
Then, the 8-bit instruction code for the instruction is shifted in.
Table 6. Read Identification (READ_ID) Data-Out Sequence
Figure 17. Read Identification (RDID) Instruction Sequence and Data-Out Sequence
(October, 2010, Version 1.2)
Manufacture Identification
DIO
DO
S
C
Manufacture ID
37h
High Impedance
0 1
2
Instruction
3
4
5 6
7
Memory Type
23 22 21
8
Manufacture ID
9
30h
10
18 17 16
13
S
) Low.
14
15
15 14 13
16 17 18
22
Memory Type
This is followed by the 24-bit device identification, stored in
the memory, being shifted out on Serial Data Output (DO),
each bit being shifted out during the falling edge of Serial
Clock (C).
The instruction sequence is shown in Figure 17. The Read
Identification (RDID) instruction is terminated by driving Chip
Select (
When Chip Select (
Stand-by Power mode. Once in the Stand-by Power mode,
the device waits to be selected, so that it can receive, decode
and execute instructions.
Device Identification
10
21
S
22 23 24 25 26
9
) High at any time during data output.
8
7
Memory Capacity
Memory Capacity
6
13h (A25L040)
S
5
) is driven High, the device is put in the
AMIC Technology Corp.
2
29
30
1
0
31
A25L040 Series