S25FL256SDPBFI700 查看數據表（PDF） - Spansion Inc.
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产品描述 (功能)
生产厂家
S25FL256SDPBFI700
Spansion Inc.
S25FL256SDPBFI700 Datasheet PDF : 153 Pages
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Data Sheet
The HOLD# signal has an internal pull-up resistor and may be left unconnected in the host system if not used
for Quad mode.
Figure 3.1 HOLD Mode Operation
CS#
SCLK
HOLD#
SI_or_IO_(during_input)
SO_or_IO_(internal)
SO_or_IO_(external)
Valid Input
A
A
Hold Condition
Standard Use
Don't Care
B
B
Valid Input
C
B
C
Hold Condition
Non-standard Use
Don't Care
D
Valid Input
E
D
E
3.10
Core Voltage Supply (VCC)
VCC is the voltage source for all device internal logic. It is the single voltage used for all device internal
functions including read, program, and erase. The voltage may vary from 2.7V to 3.6V.
3.11
Versatile I/O Power Supply (VIO)
The Versatile I/O (VIO) supply is the voltage source for all device input receivers and output drivers and allows
the host system to set the voltage levels that the device tolerates on all inputs and drives on outputs (address,
control, and IO signals). The VIO range is 1.65V to VCC. VIO cannot be greater than VCC.
For example, a VIO of 1.65V - 3.6V allows for I/O at the 1.8V, 2.5V or 3V levels, driving and receiving signals
to and from other 1.8V, 2.5V or 3V devices on the same data bus. VIO may be tied to VCC so that interface
signals operate at the same voltage as the core of the device. VIO is not available in all package options,
when not available the VIO supply is tied to VCC internal to the package.
During the rise of power supplies the VIO supply voltage must remain less than or equal to the VCC supply
voltage. However, the VIO supply voltage must also be above VCC -200 mV until the VIO supply voltage is
> 1.65V, i.e. the VIO supply voltage must not lag behind the VCC supply voltage by more than 200 mV during
power up, until the VIO supply voltage reaches its minimum operating level.
This supply is not available in all package options. For a backward compatible SO16 footprint, the VIO supply
is tied to VCC inside the package; thus, the IO will function at VCC level.
3.12
Supply and Signal Ground (VSS)
VSS is the common voltage drain and ground reference for the device core, input signal receivers, and output
drivers.
3.13
Not Connected (NC)
No device internal signal is connected to the package connector nor is there any future plan to use the
connector for a signal. The connection may safely be used for routing space for a signal on a Printed Circuit
Board (PCB). However, any signal connected to an NC must not have voltage levels higher than VIO.
3.14
Reserved for Future Use (RFU)
No device internal signal is currently connected to the package connector but is there potential future use of
the connector. It is recommended to not use RFU connectors for PCB routing channels so that the PCB may
take advantage of future enhanced features in compatible footprint devices.
July 12, 2012 S25FL128S_256S_00_05
S25FL128S and S25FL256S
19
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