FEATURES ................................................................................................................................................................ 4
GENERAL DESCRIPTION ..................................................................................................................................... 5
DATA PROTECTION ............................................................................................................................................. 10
STATUS REGISTER ............................................................................................................................................... 11
DC CHARACTERISTICS................................................................................................................................. 26
AC CHARACTERISTICS................................................................................................................................. 29
9.
ORDERING INFORMATION ............................................................................................................................... 33
REVISION HISTORY ........................................................................................................................................ 44
3
Uniform Sector
Standard and Dual Serial Flash
1. FEATURES
◆
GD25LD40C/20C
4M/2M-bit Serial Flash
-512K/256K-byte
-256 bytes per programmable page
◆
Fast Program/Erase Speed
-Page Program time: 1.6ms typical
-Sector Erase time: 150ms typical
-Block Erase time: 0.5/0.8s typical
◆
Standard, Dual Output
-Standard SPI: SCLK, CS#, SI, SO, WP#
-Dual Output: SCLK, CS#, IO0, O1, WP#
◆
-Chip Erase time: 6/3s typical
Flexible Architecture
-Uniform Sector of 4K-byte
◆
Clock Frequency
-50MHz for fast read with 30PF load
-Dual Output Data transfer up to 80Mbits/s
◆
-Uniform Block of 32/64K-byte
Low Power Consumption
-0.1uA typical standby current
◆
Software/Hardware Write Protection
-Write protect all/portion of memory via software
-Enable/Disable protection with WP# Pin
◆
-0.1uA typical power down current
Single Power Supply Voltage
-Full voltage range: 1.65~2.0V
◆
Advanced Security Features
-128-bit Unique ID for each device
◆
Package Option
-SOP8 150mil
◆
Minimum 100,000 Program/Erase Cycles
-SOP8 208mil
-TSSOP8 173mil
◆
Data Retention
-20-year data retention typical
-DIP8 300mil
-USON8 1.5*1.5mm
-USON8 3*2mm
-USON8 4*4mm
-WSON8 6*5mm
4
Uniform Sector
Standard and Dual Serial Flash
2. GENERAL DESCRIPTION
GD25LD40C/20C
The GD25LD40C/20C (4M/2M-bit) Serial flash supports the standard Serial Peripheral Interface (SPI), and supports
the Dual Output: Serial Clock, Chip Select, Serial Data I/O0 (SI), O1 (SO). The Dual Output data is transferred with speed
of 80Mbits/s.
CONNECTION DIAGRAM
CS#
SO/
O1
WP#
VSS
1
2
Top View
3
4
8
7
6
5
VCC
NC
SCLK
SI/
IO0
CS#
SO/
O1
WP#
VSS
1
2
Top View
3
4
8–LEAD WSON/USON
8
7
6
5
VCC
NC
SCLK
SI/
IO0
8–LEAD
TSSOP/SOP/DIP
PIN DESCRIPTION
Pin Name
CS#
SO (O1)
WP#
VSS
SI (IO0)
SCLK
NC
VCC
I/O
I
I/O
I
O
I
Description
Chip Select Input
Data Output (Data Output 1)
Write Protect Input
Ground
Data Input (Data Input Output 0)
Serial Clock Input
No Connection
Power Supply
Note: CS# must be driven high if chip is not selected. Please don’t leave CS# floating any time after power is on.