CY7C1338G-117AXC Cypress Semiconductor Corp, CY7C1338G-117AXC Datasheet - Page 6

• Manufacturer Part Number: CY7C1338G-117AXC
• Description: IC SRAM 4MBIT 117MHZ 100LQFP
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1338G-117AXC

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous
• Memory Size: 4M (128K x 32)
• Speed: 117MHz
• Interface: Parallel
• Voltage - Supply: 3.15 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Document #: 38-05521 Rev. *A
Truth Table
Deselected Cycle, Power-down
Deselected Cycle, Power-down
Deselected Cycle, Power-down
Deselected Cycle, Power-down
Deselected Cycle, Power-down
Snooze Mode, Power-down
Read Cycle, Begin Burst
Read Cycle, Begin Burst
Write Cycle, Begin Burst
Read Cycle, Begin Burst
Read Cycle, Begin Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Write Cycle, Suspend Burst
Write Cycle, Suspend Burst
Notes:
2. X = “Don't Care.” H = Logic HIGH, L = Logic LOW.
3. WRITE = L when any one or more Byte Write enable signals (BW
4. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock.
5. The SRAM always initiates a read cycle when ADSP is asserted, regardless of the state of GW, BWE, or BW
6. OE is asynchronous and is not sampled with the clock rise. It is masked internally during write cycles. During a read cycle all data bits are tri-state when OE is
(BW
after the ADSP or with the assertion of ADSC . As a result, OE must be driven HIGH prior to the start of the write cycle to allow the outputs to tri-state. OE is a
don't care for the remainder of the write cycle.
inactive or when the device is deselected, and all data bits behave as output when OE is active (LOW).
A
, BW
Cycle Description
B
, BW
[2, 3, 4, 5, 6]
C
, BW
D
), BWE, GW = H.
Address
External
External
External
External
External
Current
Current
Current
Current
Current
Current
Used
None
None
None
None
None
None
Next
Next
Next
Next
Next
Next
PRELIMINARY
CE
A
H
H
H
H
H
H
H
L
L
L
X
X
L
L
L
L
X
X
X
X
X
X
L
, BW
1
CE
B
X
X
X
X
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
X
, BW
L
L
2
C
CE
, BW
X
X
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
L
3
D
ZZ ADSP ADSC ADV WRITE OE CLK
) and BWE = L or GW= L. WRITE = H when all Byte write enable signals
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
X
H
H
X
H
H
H
H
H
X
X
H
X
H
H
X
X
H
X
L
L
L
L
X
X
X
X
X
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
X
. Writes may occur only on subsequent clocks
H
H
H
H
H
H
X
X
X
X
X
X
X
X
X
X
X
L
L
L
L
L
L
X
X
X
X
X
X
X
X
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
CY7C1338G
X
X
X
X
X
X
H
X
H
H
H
X
X
H
H
X
X
L
L
L
L
L
L
L-H tri-state
L-H tri-state
L-H tri-state
L-H tri-state
L-H tri-state
L-H Q
L-H tri-state
L-H D
L-H Q
L-H tri-state
L-H Q
L-H tri-state
L-H Q
L-H tri-state
L-H D
L-H D
L-H Q
L-H tri-state
L-H Q
L-H tri-state
L-H D
L-H D
X
Page 6 of 17
tri-state
DQ