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CY7C199CNL-15VXIT

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
CY7C199CN
Document Number: 001-06435 Rev. *J Page 10 of 17
Figure 5. Write Cycle No. 1 (WE
Controlled)
[14, 15, 16]
Figure 6. Write Cycle No. 2 (CE Controlled)
[15, 17, 18]
Timing Waveforms (continued)
Address
CE
WE
Data In/Out
t
WC
Data-In Valid
t
SCE
t
SA
t
AW
t
PWE
t
HA
t
HD
t
SD
OE
t
HZOE
Undefined
see footnotes
Address
CE
WE
Data In/Out
t
WC
Data-In Valid
t
SCE
t
SA
t
AW
t
HA
t
HD
t
SD
High Z High Z
Notes
14. This cycle is WE
controlled, OE is HIGH during write.
15. Data in and/or out is high impedance if OE
= V
IH
.
16. During this period the IOs are in output state and input signals must not be applied.
17. This cycle is CE
controlled.
18. If CE
goes HIGH simultaneously with WE going HIGH, the output remains in a high impedance state.
CY7C199CN
Document Number: 001-06435 Rev. *J Page 11 of 17
Figure 7. Write Cycle No. 3 (WE
Controlled, OE LOW)
[19]
Timing Waveforms (continued)
Address
CE
WE
Data
In Out
t
WC
Data In Valid
t
SCE
t
SA
t
AW
t
PWE
t
HA
t
HD
t
SD
t
HZWE
t
LZWE
Undefined
see footnotes
Undefined
See Footnotes
Note
19. The cycle is WE
Controlled, OE LOW. The minimum write cycle time is the sum of t
HZWE
and t
SD
.
CY7C199CN
Document Number: 001-06435 Rev. *J Page 12 of 17
Ordering Code Definitions
Ordering Information
Contact local sales representative regarding availability of these parts.
Speed
(ns)
Ordering Code
Package
Diagram
Package Type Power Option
Operating
Range
15 CY7C199CN-15PXC 51-85014 28-pin DIP (6.9 × 35.6 × 3.5 mm), Pb-free Standard Commercial
CY7C199CNL-15VXI 51-85031 28-pin (300-Mil) Molded SOJ, Pb-free Low Power Industrial
Temperature Range: X = C or I
C = Commercial; I = Industrial
Pb-free
Package Type: X = P or V
P = 28-pin DIP
V = 28-pin Molded SOJ
Speed: 15 ns
L = low power
Process Technology: CN = 0.25 μm Technology
99 = 256 K bit density with data width × 8 bits
Family Code: 1 = Fast Asynchronous SRAM family
Technology Code: C = CMOS
Marketing Code: 7 = SRAM
Company: CY = Cypress
CCY 1 - XX X7 99 CN XL X
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

CY7C199CNL-15VXIT

Mfr. #:
Buy CY7C199CNL-15VXIT
Manufacturer:
Cypress Semiconductor
Description:
SRAM 256Kb 15ns 32K x 8 SRAM
Lifecycle:
New from this manufacturer.
Delivery:
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