M68Z128 Ver la hoja de datos (PDF) - STMicroelectronics
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M68Z128 Datasheet PDF : 12 Pages
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M68Z128
Table 7. Read and Standby Modes AC Characteristics
(TA = 0 to 70°C; VCC = 5V ±10%)
M68Z128
Symbol
Parameter
-55
Unit
Min
Max
tAVAV Read Cycle Time
55
ns
tAVQV (1) Address Valid to Output Valid
55
ns
tE1LQV (1) Chip Enable 1 Low to Output Valid
55
ns
tE2HQV (1) Chip Enable 2 High to Output Valid
55
ns
tGLQV (1) Output Enable Low to Output Valid
20
ns
tE1LQX (3) Chip Enable 1 Low to Output Transition
5
ns
tE2HQX (3) Chip Enable 2 High to Output Transition
5
ns
tGLQX (3) Output Enable Low to Output Transition
0
ns
tE1HQZ (2,3) Chip Enable 1 High to Output Hi-Z
20
ns
tE2LQZ (2,3) Chip Enable 2 Low to Output Hi-Z
20
ns
tGHQZ (2,3) Output Enable High to Output Hi-Z
20
ns
tAXQX (1) Address Transition to Output Transition
5
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
55
ns
Note: 1. CL = 100pF.
2. CL = 5pF.
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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