3.3V Uniform Sector
Dual and Quad Serial Flash
Table4. Parameter Table (0): JEDEC Flash Parameter Tables
GD25Q80C
Description
Comment
Add(H)
(Byte)
DW Add
(Bit)
Data
Data
00: Reserved; 01: 4KB erase;
10: Reserved;
Block/Sector Erase Size
01:00
02
01b
1b
11: not support 4KB erase
0: 1Byte, 1: 64Byte or larger
0: Nonvolatile status bit
Write Granularity
Write Enable Instruction
Requested for Writing to Volatile 1: Volatile status bit
03
0b
Status Registers
(BP status register bit)
0: Use 50H Opcode,
30H
E5H
Write Enable Opcode Select for
Writing to Volatile Status
Registers
1: Use 06H Opcode,
Note: If target flash status register
is Nonvolatile, then bits 3 and 4
must be set to 00b.
04
0b
Contains 111b and can never be
changed
Unused
07:05
111b
4KB Erase Opcode
31H
32H
15:08
16
20H
1b
20H
F1H
FFH
(1-1-2) Fast Read
0=Not support, 1=Support
00: 3Byte only, 01: 3 or 4Byte,
10: 4Byte only, 11: Reserved
Address Bytes Number used in
addressing flash array
Double Transfer Rate (DTR)
clocking
18:17
19
00b
0b
0=Not support, 1=Support
(1-2-2) Fast Read
0=Not support, 1=Support
0=Not support, 1=Support
0=Not support, 1=Support
20
21
1b
1b
(1-4-4) Fast Read
(1-1-4) Fast Read
Unused
22
1b
23
1b
Unused
33H
31:24
31:00
FFH
Flash Memory Density
(1-4-4) Fast Read Number of
Wait states
37H:34H
007FFFFFH
0 0000b: Wait states (Dummy
Clocks) not support
04:00
00100b
38H
39H
3AH
3BH
44H
EBH
08H
6BH
(1-4-4) Fast Read Number of
Mode Bits
000b:Mode Bits not support
07:05
15:08
20:16
010b
EBH
(1-4-4) Fast Read Opcode
(1-1-4) Fast Read Number of
Wait states
0 0000b: Wait states (Dummy
Clocks) not support
01000b
(1-1-4) Fast Read Number of
Mode Bits
000b:Mode Bits not support
23:21
31:24
000b
6BH
(1-1-4) Fast Read Opcode
38