Cypress Semiconductor Perform CY7C146 Podręcznik - Strona 7

Przeglądaj online lub pobierz pdf Podręcznik dla Sprzęt komputerowy Cypress Semiconductor Perform CY7C146. Cypress Semiconductor Perform CY7C146 16 stron. 2k x 8 dual-port static ram

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Switching Characteristics
Over the Operating Range (Speeds -35, -45, -55)
Parameter
[16]
Interrupt Timing
t
R/W to INTERRUPT Set Time
WINS
t
CE to INTERRUPT Set Time
EINS
t
Address to INTERRUPT Set Time
INS
t
OE to INTERRUPT Reset Time
OINR
t
CE to INTERRUPT Reset Time
EINR
t
Address to INTERRUPT Reset Time
INR

Switching Waveforms

ADDRESS
DATA OUT
PREVIOUS DATA VALID
CE
OE
DATA OUT
t
PU
I
CC
I
SB
Notes
17. R/W is HIGH for read cycle.
18. Device is continuously selected, CE = V
19. Address valid prior to or coincident with CE transition LOW.
Document #: 38-06031 Rev. *E
[8]
(continued)
Description
[13]
[13]
[13]
Figure 4. Read Cycle No. 1 (Either Port-Address Access)
t
AA
t
OHA
Figure 5. Read Cycle No. 2 (Either Port-CE/OE )
t
ACE
t
DOE
t
LZOE
t
LZCE
and OE = V
.
IL
IL
CY7C136A, CY7C142, CY7C146
7C132-35
7C132-45
7C136-35
7C136-45
7C142-35
7C142-45
7C146-35
7C146-45
Min
Max
Min
25
25
25
25
25
25
t
RC
DATA VALID
[17, 19]
t
HZOE
DATA VALID
CY7C132, CY7C136
7C132-55
7C136-55
7C136A-55
7C142-55
7C146-55
Max
Min
Max
35
45
35
45
35
45
35
45
35
45
35
45
[17, 18]
t
HZCE
t
PD
Page 7 of 15
Unit
ns
ns
ns
ns
ns
ns
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