GD25LQ128CxIGx 1.8V Uniform Sector Dual and Quad Serial Flash
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2. GENERAL DESCRIPTION
The GD25LQ128C (128M-bit) Serial flash supports the standard Serial Peripheral Interface (SPI), and supports
the Dual/Quad SPI and QPI mode: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2 (WP#), and
I/O3 (HOLD#). The Dual I/O data is transferred with speed of 266Mbits/s and the Quad I/O & Quad output data
is transferred with speed of 532Mbits/s.
Connection Diagram
8-LEAD SOP
8-LEAD WSON
Pin Description
Pin Name
I/O
Description
CS#
SO (IO1)
WP# (IO2)
VSS
I
Chip Select Input
I/O
I/O
Data Output (Data Input Output 1)
Write Protect Input (Data Input Output 2)
Ground
SI (IO0)
SCLK
I/O
I
Data Input (Data Input Output 0)
Serial Clock Input
HOLD# (IO3)
VCC
I/O
Hold Input (Data Input Output 3)
Power Supply
Block Diagram
Write Control
Logic
WP#(IO2)
Status
Register
Flash
High Voltage
Memory
HOLD#(IO3)
SCLK
Generators
SPI
Command &
Control Logic
Page Address
Latch/Counter
CS#
Column Decode And
256-Byte Page Buffer
SI(IO0)
SO(IO1)
Byte Address
Latch/Counter
Rev.1.0
62 - 5
ELM [ ELM ELECTRONICS ]
