S25FL204K0TMFI040 Spansion, S25FL204K0TMFI040 Datasheet - Page 8

• Manufacturer Part Number: S25FL204K0TMFI040
• Description: Flash 4Mb 3V 85MHz Serial NOR Flash
• Manufacturer: Spansion

Specifications of S25FL204K0TMFI040

• Rohs: yes
• Memory Type: NOR Flash
• Memory Size: 4 MB
• Interface Type: SPI
• Access Time: 5 ns
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V
• Operating Temperature: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SO-8

3. Signal Descriptions
8
Serial Data Input / Output (SI/IO0)
The SPI Serial Data Input/Output (SI/IO0) pin provides a means for instructions, addresses and data to be
serially written to (shifted into) the device. Data is latched on the rising edge of the Serial Clock (SCK) input
pin. The SI/IO0 pin is also used as an output pin when the Fast Read Dual Output instruction is executed.
Serial Data Output (SO)
The SPI Serial Data Output (SO) pin provides a means for data and status to be serially read from (shifted out
of) the device. Data is shifted out on the falling edge of the Serial Clock (SCK) input pin.
Serial Clock (SCK)
The SPI Serial Clock Input (SCK) pin provides the timing for serial input and output operations.
Modes on page 11.
Chip Select (CS#)
The SPI Chip Select (CS#) pin enables and disables device operation. When CS# is high the device is
deselected and the Serial Data Output pins are at high impedance.
When deselected, the device’s power consumption will be at standby levels unless an internal erase, program
or status register cycle is in progress. When CS# is brought low the device will be selected, power
consumption will increase to active levels and instructions can be written to and data read from the device.
After power-up, CS# must transition from high to low before a new instruction will be accepted.
HOLD (HOLD#)
The HOLD# pin allows the device to be paused while it is actively selected. When HOLD# is brought low,
while CS# is low, the SO pin will be at high impedance and signals on the SI and SCK pins will be ignored
(don’t care). The HOLD# function can be useful when multiple devices are sharing the same SPI signals.
Write Protect (WP#)
The Write Protect (WP#) pin can be used to prevent the Status Register from being written. Used in
conjunction with the Status Register’s Block Protect (BP0, BP1 and BP2, BP3) bits and Status Register
Protect (SRP) bits, a portion or the entire memory array can be hardware protected.
Note:
1. SI/IO0 output is used for Dual Output Read instruction.
Symbol
HOLD#
SI/IO0
WP#
GND
SCK
VCC
CS#
SO
D a t a
S25FL204K
Table 3.1 Pin Descriptions
S h e e t
( P r e l i m i n a r y )
Serial Data Input / Output
Supply Voltage (2.7-3.6V)
Serial Data Output
Serial Clock Input
Write Protect
Chip Enable
Pin Name
Hold Input
Ground
S25FL204K_00_06 January 17, 2013
(1)
See SPI