IDT72245LB25JI IDT, Integrated Device Technology Inc, IDT72245LB25JI Datasheet - Page 11

• Manufacturer Part Number: IDT72245LB25JI
• Description: IC FIFO 1024X18 SYNC 25NS 68PLCC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 7200r

Specifications of IDT72245LB25JI

• Function: Synchronous
• Memory Size: 18.4K (1K x 18)
• Access Time: 25ns
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Configuration: Dual
• Density: 72Kb
• Access Time (max): 15ns
• Word Size: 18b
• Organization: 4Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: LCC
• Clock Freq (max): 40MHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 60mA
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 68
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Rate: -
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 72245LB25JI

NOTE:
1. When t
IDT72205LB/72215LB/72225LB/72235LB/72245LB CMOS SyncFIFO
256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18 and 4,096 x 18
WCLK
D
Q
Q
D
RCLK
0
0
0
0
The Latency Timing applies only at the Empty Boundary (EF = LOW).
WEN
WCLK
–D
–Q
RCLK
- D
- Q
LD
15
15
17
17
SKEW2
t
t
ENS
LOW
DS
t
CLKH
minimum specification, t
DATA WRITE 1
t
CLKH
PAE OFFSET
t
t
ENH
SKEW2
DATA IN OUTPUT REGISTER
t
CLK
t
CLK
t
t
FRL
ENS
ENS
t
t
t
DS
ENS
ENS
t
CLKL
(maximum) = t
t
FRL
(1)
t
UNKNOWN
CLKL
CLK
Figure 10. Write Programmable Registers
Figure 11. Read Programmable Registers
PAF OFFSET
t
t
t
REF
ENH
t
DH
ENH
+ t
t
SKEW2
A
Figure 9. Empty Flag Timing
. When t
SKEW2
11
PAE OFFSET
t
A
< minimum specification, t
TM
t
REF
t
ENS
t
DS
D
DATA WRITE 2
0
–D
FRL
PAF OFFSET
11
(maximum) = either 2*t
t
ENH
t
SKEW2
PAE OFFSET
DATA READ
COMMERCIAL AND INDUSTRIAL
t
FRL
TEMPERATURE RANGES
CLK
(1)
+ t
PAE OFFSET
OCTOBER 22, 2008
t
SKEW2
REF
or t
2766 drw 11
CLK
2766 drw 12
2766 drw 13
+ t
SKEW2
.