M25PE40 Datasheet, PDF (51/62 Pages) STMicroelectronics – 4 Mbit, low voltage, Page-Erasable Serial Flash memory with byte alterability, 50 MHz SPI bus, standard pinout

M25PE40
DC and AC parameters
Table 22.
AC characteristics (75 MHz operation, T9HX (0.11µm) process⁽¹⁾)^(2)(3)(4)
Test conditions specified in Table 14 and Table 15
Symbol Alt.
Parameter
Min.
Typ.
Max.
Clock frequency for the following instructions:
f_C
f_C FAST_READ, RDLR, PW, PP, WRLR, PE, SE, D.C.
75
SSE, DP, RDP, WREN, WRDI, RDSR, WRSR
f_R
Clock frequency for READ instructions
D.C.
33
t_CH(5)
t_CLH Clock High time
6
t_CL(5)
t_CLL Clock Low time
6
Clock Slew Rate (peak to peak)
0.1
t_SLCH
t_CHSL
t_DVCH
t_CHDX
t_CHSH
t_SHCH
t_SHSL
t_SHQZ(6)
t_CLQV
t_CLQX
t_WHSL(7)
t_SHWL(7)
t_DP(6)
t_RDP(6)
t_W
t_PW(8)
t_PP(8)
t_CSS
t_DSU
t_DH
t_CSH
t_DIS
t_V
t_HO
S Active Setup time (relative to C)
S Not Active Hold time (relative to C)
Data In Setup time
Data In Hold time
S Active Hold time (relative to C)
S Not Active Setup time (relative to C)
S Deselect time
Output Disable time
Clock Low to Output Valid
Output Hold time
Write Protect Setup time
Write Protect Hold time
S to Deep Power-down
S High to Standby mode
Write Status Register cycle time
Page Write cycle time (256 bytes)
Page Program cycle time (256 bytes)
Page Program cycle time (n bytes)
5
5
2
5
5
5
100
8
8/6
0
20
100
3
30
3
15
11
23
0.8
int(n/8) ×
3
0.025⁽⁹⁾
t_PE
Page Erase cycle time
t_SE
Sector Erase cycle time
t_SSE
Subsector Erase cycle time
t_BE
Bulk Erase cycle time
10
20
1.5
5
80
150
8
10
1. See Important note on page 6.
2. Details of how to find the technology process in the marking are given in AN1995, see also Section 13: Ordering
information.
3. Delivery of parts operating with a maximum clock rate of 75 MHz starts from week 8 of 2008.
4. Preliminary data.
5. t_CH + t_CL must be greater than or equal to 1/ f_C.
6. Value guaranteed by characterization, not 100% tested in production.
7. Only applicable as a constraint for a WRSR instruction when SRWD is set to ‘1’.
Unit
MHz
MHz
ns
ns
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
ms
ms
ms
ms
s
ms
s
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