DSM2190F4 STMicroelectronics, DSM2190F4 Datasheet - Page 45

• Manufacturer Part Number: DSM2190F4
• Description: DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply)
• Manufacturer: STMicroelectronics

Table 25. AC Symbols for PLD Timing
Example: t
Write input Low.
Figure 28. Switching Waveforms – Key
A
C
D
E
N
P
Q
R
S
W
B
M
Address Input
CEout Output
Input Data
E Input
Reset Input or Output
Port Signal Output
Output Data
RD Input (read)
Chip Select Input, BMS, DMS, IOMS, or FSx
WR Input (write)
V
Output Macrocell
STBY
AVWL
Output
–
Signal Letters
Time from Address Valid to
WAVEFORMS
STEADY INPUT
MAY CHANGE FROM
HI TO LO
MAY CHANGE FROM
LO TO HI
DON'T CARE
OUTPUTS ONLY
INPUTS
t
L
H
V
X
Z
PW
Time
Logic Level Low
Logic Level High
Valid
No Longer a Valid Logic Level
Float
Pulse Width
STEADY OUTPUT
WILL BE CHANGING
FROM HI TO LO
WILL BE CHANGING
LO TO HI
CHANGING, STATE
UNKNOWN
CENTER LINE IS
TRI-STATE
OUTPUTS
Signal Behavior
AI03102
DSM2190F4
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