72T1875L5BBI Integrated Device Technology (Idt), 72T1875L5BBI Datasheet - Page 36

• Manufacturer Part Number: 72T1875L5BBI
• Description: FIFO Mem Async/Sync Dual Depth/Width Uni-Dir 16K x 18/32K x 9 144-Pin BGA
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 72T1875L5BBI

• Package: 144BGA
• Configuration: Dual
• Bus Directional: Uni-Directional
• Density: 288 Kb
• Organization: 16Kx18|32Kx9
• Data Bus Width: 9/18 Bit
• Timing Type: Asynchronous|Synchronous
• Expansion Type: Depth|Width
• Typical Operating Supply Voltage: 2.5 V
• Operating Temperature: -40 to 85 °C

NOTES:
1. t
2. LD = HIGH, OE = LOW, EF = HIGH.
3. WCS = LOW.
NOTES:
1. t
2. LD = HIGH.
3. First data word latency = t
4. RCS is LOW.
Q
D
IDT72T1845/55/65/75/85/95/105/115/125 2.5V TeraSync™ 18-BIT/9-BIT FIFO
8Kx9, 8Kx18/16Kx9, 16Kx18/32Kx9, 32Kx18/64Kx9, 64Kx18/128Kx9, 128Kx18/256Kx9, 256Kx18/512Kx9, 512Kx18/1Mx9
Q0 - Qn
D0 - Dn
WCLK
0
0
WCLK
WCS
RCLK
RCLK
rising edge of the RCLK and the rising edge of the WCLK is less than t
rising edge of WCLK and the rising edge of RCLK is less than t
WEN
SKEW1
WEN
SKEW1
RCS
REN
- D
- Q
REN
FF
EF
OE
n
n
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go HIGH (after one WCLK cycle pus t
is the minimum time between a rising WCLK edge and a rising RCLK edge to guarantee that EF will go HIGH (after one RCLK cycle plus t
t
ENS
t
t
ENS
ENS
Figure 12. Read Cycle, Output Enable, Empty Flag and First Data Word Latency (IDT Standard Mode)
t
RCSLZ
t
SKEW1
t
t
OLZ
ENH
SKEW1
t
REF
t
A
(1)
t
OE
+ 1*T
t
WCSS
t
ENH
t
SKEW1
t
RCLK
ENS
t
A
t
DS
1
D
(1)
+ t
NO WRITE
Figure 11. Write Cycle and Full Flag Timing (IDT Standard Mode)
0
REF.
NO OPERATION
t
t
DH
ENH
LAST WORD
1
2
t
WFF
SKEW1
t
DS
t
, then EF deassertion may be delayed one extra RCLK cycle.
t
OHZ
t
CLKH
t
DS
SKEW1
ENS
D
, then the FF deassertion may be delayed one extra WCLK cycle.
D
X
1
NO OPERATION
t
WFF
DATA READ
t
t
t
36
ENH
WCSH
DH
t
DH
t
CLK
2
t
CLKL
t
t
CLKH
ENS
t
REF
t
OLZ
t
SKEW1
2Kx18/4Kx9, 4Kx18/
t
CLK
(1)
t
CLKL
t
t
ENS
ENH
LAST WORD
t
A
1
NO WRITE
t
ENH
t
A
COMMERCIAL AND INDUSTRIAL
2
TEMPERATURE RANGES
NEXT DATA READ
WFF
REF
t
t
ENS
FEBRUARY 10, 2009
WFF
t
DS
). If the time between the
). If the time between the
D
0
D
X+1
t
REF
t
t
ENH
A
5909 drw15
t
DH
5909 drw16
t
WFF
D
1