CY7C1370D-250AXCT Cypress Semiconductor Corp, CY7C1370D-250AXCT Datasheet - Page 10

• Manufacturer Part Number: CY7C1370D-250AXCT
• Description: CY7C1370D-250AXCT
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1370D-250AXCT

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous
• Memory Size: 18M (512K x 36)
• Speed: 250MHz
• Interface: Parallel
• Voltage - Supply: 3.135 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Truth Table
The Truth Table for CY7C1370D and CY7C1372D follows
Notes
Document Number: 38-05555 Rev. *K
Deselect cycle
Continue deselect cycle
Read cycle (begin burst)
Read cycle (continue burst)
NOP/dummy read (begin burst)
Dummy read (continue burst)
Write cycle (begin burst)
Write cycle (continue burst)
NOP/write abort (begin burst)
Write abort (continue burst)
Ignore clock edge (stall)
Sleep mode
1. X = “Don't Care”, H = Logic HIGH, L = Logic LOW, CE stands for ALL Chip Enables active. BWx = L signifies at least one Byte Write Select is active, BWx = Valid
2. Write is defined by WE and BW
3. When a write cycle is detected, all I/Os are tristated, even during byte writes.
4. The DQ and DQP pins are controlled by the current cycle and the OE signal.
5. CEN = H inserts wait states.
6. Device will power-up deselected and the I/Os in a tristate condition, regardless of OE.
7. OE is asynchronous and is not sampled with the clock rise. It is masked internally during write cycles.During a read cycle DQ
signifies that the desired byte write selects are asserted, see Write Cycle Description table for details.
inactive or when the device is deselected, and DQ
Operation
X
. See Write Cycle Description table for details.
None
None
External
Next
External
Next
External
Next
None
Next
Current
None
Address
Used
s
= data when OE is active.
CE
H
X
X
L
X
L
X
L
L
X
X
X
.[1, 2, 3, 4, 5, 6, 7]
ZZ
H
L
L
L
L
L
L
L
L
L
L
L
ADV/LD
H
H
H
H
H
X
X
L
L
L
L
L
WE
H
H
X
X
X
X
L
X
L
X
X
X
BW
H
H
X
X
X
X
X
X
L
L
X
X
x
X
X
L
L
H
H
X
X
X
X
X
X
CY7C1370D, CY7C1372D
OE
L
L
L
L
L
L
L
L
L
L
H
X
CEN
s
and DQP
L–H
L–H
L–H
L–H
L–H
L–H
L–H
L–H
L–H
L–H
L–H
X
CLK
X
= Three-state when OE is
Data out (Q)
Data out (Q)
Data in (D)
Data in (D)
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Page 10 of 29
DQ
–
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