CY7C43642AV-10AC Cypress Semiconductor Corp, CY7C43642AV-10AC Datasheet - Page 25

• 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:
44. FIFO1 Port A Write (CSA = LOW, W/RA = HIGH, MBA = LOW), FIFO1 Port B Read (CSB = LOW, W/RB = HIGH, MBB = LOW). Data in the FIFO1 output
45. D = Maximum FIFO Depth = 1K for the CY7C43642AV, 4K for the CY7C43662AV, and 16K for the CY7C43682AV.
46. t
47. FIFO2Port A 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
48. t
AFA
CLKB
ENB
AFB
CLKA
ENA
Timing for AFA when FIFO1 is Almost Full (CY Standard and FWFT Modes)
CLKA
ENA
Timing for AFB when FIFO2 is Almost Full (CY Standard and FWFT Modes)
CLKB
ENB
register 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 AFA to transition HIGH in the next CLKA cycle. If the time between the
is the minimum time between a rising CLKB edge and a rising CLKA edge for AFB to transition HIGH in the next CLKB cycle. If the time between the
[D–(Y1 + 1)] Words in FIFO1
[D – (Y2 + 2)] Words in FIFO2
t
t
ENS
ENS
(continued)
t
t
PAF
PAF
t
t
ENH
ENH
SKEW2
SKEW2
, then AFA may transition HIGH one CLKB cycle later than shown.
, then AFB may transition HIGH one CLKA cycle later than shown.
(D–Y1)Words in FIFO1
(D – Y2) Words in FIFO2
t
t
ENS
ENS
t
t
ENH
ENH
t
t
ENS
ENS
[44, 45, 46]
[45, 47,48]
t
t
t
ENH
t
ENH
SKEW2
SKEW2
[48]
[46]
t
t
PAF
PAF
CY7C43642AV
CY7C43662AV
CY7C43682AV
[D – (Y1 + 2)] words in FIFO1
[D – (Y2+2)] words in FIFO2
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