CY7C0851AV-133AXI Cypress Semiconductor Corp, CY7C0851AV-133AXI Datasheet - Page 28

• Manufacturer Part Number: CY7C0851AV-133AXI
• Description: CY7C0851AV-133AXI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C0851AV-133AXI

• Format - Memory: RAM
• Memory Type: SRAM - Dual Port, Synchronous
• Memory Size: 2M (64K x 36)
• Speed: 133MHz
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Switching Waveforms
Table 7. Read/Write and Enable Operation (Any Port)
Notes
Document #: 38-06070 Rev. *J
57. CE
58. Address “3FFFF” is the mailbox location for R_Port of a 9M device.
59. L_Port is configured for Write operation, and R_Port is configured for Read operation.
60. At least one byte enable (B0 – B3) is required to be active during interrupt operations.
61. Interrupt flag is set with respect to the rising edge of the Write clock, and is reset with respect to the rising edge of the Read clock.
62. OE is an asynchronous input signal.
63. When CE changes state, deselection and Read happen after one cycle of latency.
64. 9 M device has 18 address bits, 4M device has 17 address bits, 2 M device has 16 address bits, and 1M device has 15 address bits.
65. “X” = “Don’t Care,” “H” = HIGH, “L” = LOW.
CLK
L_PORT
ADDRESS
INT
CLK
R_PORT
ADDRESS
OE
H
X
X
X
L
0
R
= OE = ADS = CNTEN = LOW; CE
L
R
CLK
X
t
CH2
t
CH2
t
CYC2
Inputs
t
CYC2
CE
t
(continued)
CL2
H
X
L
L
L
1
t
t
0
SA
3FFFF
= CNTRST = MRST = CNT/MSK = HIGH.
CL2
t
SA
Figure 23. MailBox Interrupt Timing
A
t
HA
m
t
t
HA
SINT
CE
X
H
H
H
L
1
A
n
A
[64, 65, 62, 63]
R/W
m+1
X
X
H
X
L
CY7C0850AV,CY7C0851V/CY7C0851AV
A
n+1
3FFFF
DQ
Outputs
High-Z
High-Z
High-Z
[57, 58, 59, 60, 61]
D
0
D
OUT
– DQ
IN
t
RINT
35
CY7C0852V/CY7C0852AV
CY7C0853V/CY7C0853AV
A
n+2
A
Deselected
Deselected
Write
Read
Outputs disabled
m+3
Operation
A
n+3
A
m+4
Page 28 of 36
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