CY7C43642AV-10AC Cypress Semiconductor Corp, CY7C43642AV-10AC Datasheet - Page 24

• Manufacturer Part Number: CY7C43642AV-10AC
• Description: FIFO Mem Sync Dual Depth/Width Bi-Dir 1K x 36 x 2 120-Pin TQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C43642AV-10AC

• Package: 120TQFP
• Configuration: Dual
• Bus Directional: Bi-Directional
• Density: 72 Kb
• Organization: 1Kx36x2
• Data Bus Width: 36 Bit
• Timing Type: Synchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 3.3 V
• Operating Temperature: 0 to 70 °C

Document #: 38-06020 Rev. *C
Switching Waveforms
Notes:
40. FIFO1 Port A Write (CSA = LOW, W/RA = HIGH, MBA = LOW), FIFO1Port B Read (CSB = LOW, W/RB = HIGH, MBB = LOW). Data in the FIFO1 output register
41. t
42. FIFO2 Port B Write (CSB = LOW, W/RB = LOW, MBB = LOW), FIFO2 Port A Read (CSA = LOW, W/RA = LOW, MBA = LOW). Data in the FIFO2 output register
43. t
CLKB
AEB
ENB
CLKA
AEA
ENA
Timing for AEB when FIFO1 is Almost Empty (CY Standard and FWFT Modes)
CLKA
ENA
Timing for AEA when FIFO2 is Almost Empty (CY Standard and FWFT Modes)
CLKB
ENB
has been Read from the FIFO.
rising CLKA edge and rising CLKB edge is less than t
has been Read from the FIFO.
rising CLKB edge and rising CLKA edge is less than t
SKEW2
SKEW2
is the minimum time between a rising CLKA edge and a rising CLKB edge for AEB to transition HIGH in the next CLKB cycle. If the time between the
is the minimum time between a rising CLKB edge and a rising CLKA edge for AEA to transition HIGH in the next CLKA cycle. If the time between the
X1 Word in FIFO1
X2 Word in FIFO2
t
t
ENS
ENS
(continued)
(X2 + 1) Words in FIFO2 (X2 + 2) Words in FIFO2
t
(X1 + 1) Words in FIFO1 ( X1 + 2) Words in FIFO1
ENH
t
ENH
SKEW2
SKEW2
t
t
ENS
ENS
, then AEB may transition HIGH one CLKB cycle later than shown.
, then AEA may transition HIGH one CLKA cycle later than shown.
t
t
t
t
ENH
ENH
SKEW2
SKEW2
[41]
[43]
t
t
PAE
PAE
t
t
ENS
ENS
(X1 + 2)Words in FIFO1
(X2 + 2) Words in FIFO2
[1, 40, 41]
[1, 42, 43]
t
t
ENH
ENH
t
t
ENS
ENS
CY7C43642AV
CY7C43662AV
CY7C43682AV
X2 Words in FIFO
X1 Words in FIFO
t
t
t
t
ENH
ENH
PAE
PAE
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