CY7C199C-20VC Cypress Semiconductor Corp, CY7C199C-20VC Datasheet - Page 8
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CY7C199C-20VC
Manufacturer Part Number
CY7C199C-20VC
Description
IC SRAM 256KBIT 20NS 28SOJ
Manufacturer
Cypress Semiconductor Corp
Datasheet
1.CY7C199C-12ZC.pdf
(12 pages)
Specifications of CY7C199C-20VC
Format - Memory
RAM
Memory Type
SRAM - Asynchronous
Memory Size
256K (32K x 8)
Speed
20ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOJ
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
428-1573-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C199C-20VC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Document #: 38-05408 Rev. *A
Read Cycle No. 2
Write Cycle No. 1
Notes:
Data In/Out
Data Out
Current
12. This cycle is OE Controlled and WE is HIGH read cycle.
13. Address valid prior to or coincident with CE transition LOW.
14. This cycle is WE controlled, OE is HIGH during write.
15. Data In/Out is high impedance if OE = V
16. During this period the I/Os are in output state and input signals
should not be applied.
Address
Address
V
WE
OE
CE
OE
CE
CC
Undefined
see footnotes
12 13
(WE Controlled) 14 15 16
I
I
CC
SB
High Z
t
HZOE
t
SA
IH
.
t
LZCE
t
PU
t
AW
t
ACE
t
t
SCE
LZOE
50%
t
DOE
Data-In Valid
t
WC
t
RC
t
t
SD
PWE
Data Valid
t
HD
t
HZOE
t
HA
CY7C199C
50%
t
HZCE
t
PD
Page 8 of 12
High Z