EN25S40 Datasheet, PDF (28/37 Pages) Eon Silicon Solution Inc. – 4 Megabit 1.8V Serial Flash Memory with 4Kbyte Uniform Sector

EN25S40
Table 11. 75MHz AC Characteristics
(T_a = - 40°C to 85°C; V_CC = 1.65-1.95V)
Symbol Alt
Parameter
Min Typ
Max
Serial Clock Frequency for:
FAST_READ, PP, SE, BE, DP, RES, WREN,
D.C.
75
F_R
f_C
WRDI, WRSR
Serial Clock Frequency for:
Dual Fast Read 、Dual I/O
D.C.
50
f_R
Serial Clock Frequency for READ, RDSR, RDID D.C.
33
t_CLH ¹
Serial Clock High Time
6
t_CLL1
Serial Clock Low Time
6
t_CLCH2
Serial Clock Rise Time (Slew Rate)
0.1
t_CHCL ²
Serial Clock Fall Time (Slew Rate)
0.1
t_SLCH
t_{CSS CS# Active Setup Time}
5
t_CHSH
CS# Active Hold Time
5
t_SHCH
CS# Not Active Setup Time
5
t_CHSL
CS# Not Active Hold Time
5
t_SHSL
t_SHQZ ²
t_{CSH CS# High Time}
t_{DIS Output Disable Time}
100
6
t_CLQX
t_{HO Output Hold Time}
0
t_DVCH
t_{DSU Data In Setup Time}
2
t_CHDX
t_{DH Data In Hold Time}
5
t_HLCH
HOLD# Low Setup Time ( relative to CLK )
5
t_HHCH
HOLD# High Setup Time ( relative to CLK )
5
t_CHHH
HOLD# Low Hold Time ( relative to CLK )
5
t_CHHL
HOLD# High Hold Time ( relative to CLK )
5
t_HLQZ ²
t_{HZ HOLD# Low to High-Z Output}
6
t_HHQX ²
t_{LZ HOLD# High to Low-Z Output}
6
t_CLQV
t_V
Output Valid from CLK ( 75 MHz )
8
Output Valid from CLK ( 50 MHz )
9
Output Valid from CLK ( 33 MHz )
13
t_WHSL3
Write Protect Setup Time before CS# Low
20
t_SHWL3
Write Protect Hold Time after CS# High
100
t_DP ²
CS# High to Deep Power-down Mode
3
t_RES1 ²
CS# High to Standby Mode without Electronic
Signature read
3
t_RES2 ²
CS# High to Standby Mode with Electronic
Signature read
1.8
t_W
Write Status Register Cycle Time
t_PP
Page Programming Time
20
50
1.3
5
t_SE
Sector Erase Time
0.09
0.3
t_BE
Block Erase Time
0.4
2
t_CE
Chip Erase Time
3.5
10
Note: 1. t_CH + t_CL must be greater than or equal to 1/ f_C
2. Value guaranteed by characterization, not 100% tested in production.
3. Only applicable as a constraint for a Write status Register instruction when Status Register Protect Bit is set at 1.
Unit
MHz
MHz
MHz
ns
ns
V / ns
V / ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
µs
ms
ms
s
s
s
This Data Sheet may be revised by subsequent versions
28
or modifications due to changes in technical specifications.
©2004 Eon Silicon Solution, Inc.,
Rev. A, Issue Date: 2009/04/28
www.eonssi.com