M68Z128W データシートの表示（PDF） - STMicroelectronics
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M68Z128W Datasheet PDF : 12 Pages
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M68Z128W
Table 7. Read and Standby Modes AC Characteristics
(TA = 0 to 70°C; VCC = 3.0V + 0.6V / –0.3V)
M68Z128W
Symbol
Parameter
-70
Unit
Min
Max
tAVAV Read Cycle Time
70
ns
tAVQV (1) Address Valid to Output Valid
70
ns
tE1LQV (1) Chip Enable 1 Low to Output Valid
70
ns
tE2HQV (1) Chip Enable 2 High to Output Valid
70
ns
tGLQV (1) Output Enable Low to Output Valid
35
ns
tE1LQX (3) Chip Enable 1 Low to Output Transition
10
ns
tE2HQX (3) Chip Enable 2 High to Output Transition
10
ns
tGLQX (3) Output Enable Low to Output Transition
10
ns
tE1HQZ (2,3) Chip Enable 1 High to Output Hi-Z
0
25
ns
tE2LQZ (2,3) Chip Enable 2 Low to Output Hi-Z
0
25
ns
tGHQZ (2,3) Output Enable High to Output Hi-Z
0
25
ns
tAXQX (1) Address Transition to Output Transition
10
ns
tPU
Chip Enable 1 Low or Chip Enable 2 High to Power Up
0
ns
tPD
Chip Enable 1 High or Chip Enable 2 Low to Power Down
70
ns
Note: 1. CL = 50pF (see Figure 3).
2. CL = 5pF (see Figure 3).
3. At any given temperature and voltage condition, tEIHQZ + tEZHQZ is less than tEILQX and tEZLQX, tGHQZ is less than tGLQX for any
given device.
Figure 5. Address Controlled, Read Mode AC Waveforms
A0-A16
DQ0-DQ7
tAVQV
tAVAV
VALID
DATA VALID
tAXQX
AI01078
Note: E1 = Low, E2 = High, G = Low, W = High.
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