A25L040O-F AMIC, A25L040O-F Datasheet - Page 5

• 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

SPI MODES
These devices can be driven by a microcontroller with its SPI
peripheral running in either of the two following modes:
– CPOL=0, CPHA=0
– CPOL=1, CPHA=1
For these two modes, input data is latched in on the rising
edge of Serial Clock (C), and output data is available from the
Figure 1. Bus Master and Memory Devices on the SPI Bus
Note: The Write Protect (
Figure 2. SPI Modes Supported
(October, 2010, Version 1.2)
CS3
SPI Interface with
(CPOL, CPHA)
= (0, 0) or (1, 1)
(ST6, ST7, ST9,
ST10, Other)
Bus Master
CPOL
0
1
CS2
CPHA
CS1
W
0
1
) and Hold (
SDO
SDI
DIO
SCK
DO
C
C
HOLD
MSB
) signals should be driven, High or Low as appropriate.
C DO
SPI Memory
S
Device
W HOLD
DIO
4
falling edge of Serial Clock (C).
The difference between the two modes, as shown in Figure 2,
is the clock polarity when the bus master is in Stand-by mode
and not transferring data:
– C remains at 0 for (CPOL=0, CPHA=0)
– C remains at 1 for (CPOL=1, CPHA=1)
C DO
SPI Memory
S
Device
W HOLD
DIO
MSB
AMIC Technology Corp.
C DO
A25L040 Series
SPI Memory
S
Device
W HOLD
DIO