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GD25B257D Datasheet(PDF) 5 Page - GigaDevice Semiconductor (Beijing) Inc.

Part # GD25B257D
Description  3.3V Uniform Sector Dual and Quad Serial Flash
PDF  92 Pages
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Manufacturer  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Direct Link  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25B257D Datasheet(HTML) 5 Page - GigaDevice Semiconductor (Beijing) Inc.

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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B257D
5
2.
GENERAL DESCRIPTION
The GD25B257D (256M-bit) Serial flash supports the standard Serial Peripheral Interface (SPI), and supports the
Dual/Quad SPI: Serial Clock, Chip Select, Serial Data I/O0 (SI), I/O1 (SO), I/O2, and I/O3 . The Dual I/O data is transferred
with speed of 208Mbits/s and the Quad I/O & Quad output data is transferred with speed of 416Mbits/s, and the DTR
Quad I/O data is transferred with speed of 640Mbits/s.
CONNECTION DIAGRAM
Figure 1. Connection Diagram
Note:
1. Only for special order, Pin 3 of 16-LEAD SOP package or Pin A4 of 24-BALL TFBGA (5x5 ball array) package is RESET#
pin. Please contact GigaDevice for detail
2.
CS# must be driven high if chip is not selected. Please don’t leave CS# floating any time after power is on.
CS#
SO
(IO1)
IO2
VSS
Top View
VCC
IO3
SCLK
SI
(IO0)
8–LEAD WSON
1
2
3
4
5
6
7
8
Top View
A2
A3
A4
A5
B2
B3
B4
B5
B1
C1
C2
C3
C4
C5
D1
D2
D3
D4
D5
E1
E2
E3
E4
E5
NC
NC
NC
NC
ECS#
IO3
NC
IO2
VCC
RESET#
(1)
SI(IO0)
NC
DQS
VSS
NC
SO(IO1)
NC
CS#
SCLK
NC
NC
NC
NC
NC
24-BALL TFBGA (5x5 ball array)
CS#
SO
(IO1)
IO2
VSS
Top View
VCC
IO3
SCLK
SI
(IO0)
16-LEAD SOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
RESET#
(1)
NC
NC
NC
NC
NC
DQS
NC



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