M25P40
DC and ac parameters
Table 16. Instruction times (device grade 3)
Test conditions specified in Table 10 and Table 17
Symbol
Alt.
Parameter
Min.
Typ.(1) (2) Max.(2) Unit
tW
Write Status Register cycle time
8
15
ms
Page Program cycle time (256 bytes)
1.5
(3)
tPP
5
ms
0.4+
n*1.1/256
Page Program cycle time (n bytes)
tSE
tBE
Sector Erase cycle time
Bulk Erase cycle time
1
3
s
s
4.5
10
1. At 85 °C
2. Preliminary data.
3. When using the Page Program (PP) instruction to program consecutive bytes, optimized timings are
obtained with one sequence including all the bytes versus several sequences of only a few bytes. (1 ≤n ≤
256)
Table 17. AC measurement conditions
Symbol
Parameter
Load capacitance
Min.
Max.
Unit
CL
30
pF
ns
V
Input rise and fall times
5
Input pulse voltages
0.2VCC to 0.8VCC
0.3VCC to 0.7VCC
VCC / 2
Input timing reference voltages
Output timing reference voltages
V
V
1. Output Hi-Z is defined as the point where data out is no longer driven.
Figure 21. AC measurement I/O waveform
Input Levels
Input and Output
Timing Reference Levels
0.8V
CC
0.7V
CC
0.5V
CC
0.3V
CC
0.2V
CC
AI07455
Table 18. Which AC characteristics to use?
Device grade
VCC = 2.3 V to 3.6 V
VCC = 2.7 V to 3.6 V
AC characteristics at 25 MHz (Table 19)
Device grade 3
Device grade 6
1. Not applicable.
N/A(1)
AC characteristics at 40 MHz (Table 21) AC characteristics at 50 MHz (Table 20)
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NUMONYX [ NUMONYX B.V ]
