IDT72V271LA15PFGI8 IDT, Integrated Device Technology Inc, IDT72V271LA15PFGI8 Datasheet - Page 24
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IDT72V271LA15PFGI8
Manufacturer Part Number
IDT72V271LA15PFGI8
Description
IC FIFO SS 16384X18 15NS 64QFP
Manufacturer
IDT, Integrated Device Technology Inc
Series
72Vr
Datasheet
1.IDT72V271LA10PFG.pdf
(27 pages)
Specifications of IDT72V271LA15PFGI8
Function
Synchronous
Memory Size
288K (16K x 18)
Access Time
15ns
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Rate
-
Other names
72V271LA15PFGI8
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IDT72V271LA15PFGI8
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
OPTIONAL CONFIGURATIONS
WIDTH EXPANSION CONFIGURATION
control signals of multiple devices. Status flags can be detected from
any one device. The exceptions are the EF and FF functions in IDT
Standard mode and the IR and OR functions in FWFT mode. Because
of variations in skew between RCLK and WCLK, it is possible for EF/FF
deassertion and IR/OR assertion to vary by one cycle between FIFOs.
In IDT Standard mode, such problems can be avoided by creating
NOTES:
1. Use an AND gate in IDT Standard mode, an OR gate in FWFT mode.
2. Do not connect any output control signals directly together.
3. FIFO #1 and FIFO #2 must be the same depth, but may be different word widths.
IDT72V261LA/72V271LA
3.3 VOLT CMOS SuperSync FIFO™ 16,384 x 9 and 32,768 x 9
Word width may be increased simply by connecting together the
GATE
(1)
FIRST WORD FALL THROUGH/
DATA IN
SERIAL INPUT (FWFT/SI)
MASTER RESET (MRS)
PARTIAL RESET (PRS)
FULL FLAG/INPUT READY (FF/IR)
FULL FLAG/INPUT READY (FF/IR) #2
RETRANSMIT (RT)
m + n
PROGRAMMABLE (PAF)
WRITE CLOCK (WCLK)
WRITE ENABLE (WEN)
HALF-FULL FLAG (HF)
Figure 19. Block Diagram of 16,384 x 18 and 32,768 x 18 Width Expansion
D
0
- Dm
LOAD (LD)
m
#1
72V261LA
72V271LA
IDT
FIFO
#1
Dm
m
+1
- Dn
Q
0
24
n
- Qm
composite flags, that is, ANDing EF of every FIFO, and separately
ANDing FF of every FIFO. In FWFT mode, composite flags can be
created by ORing OR of every FIFO, and separately ORing IR of every
FIFO.
72V271LA devices. D0 - D8 from each device form a 18-bit wide input
bus and Q0-Q8 from each device form a 18-bit wide output bus. Any
word width can be attained by adding additional IDT72V261LA/72V271LA
devices.
Figure 21 demonstrates a width expansion using two IDT72V261LA/
72V261LA
72V271LA
FIFO
IDT
#2
READ CLOCK (RCLK)
n
READ ENABLE (REN)
OUTPUT ENABLE (OE)
EMPTY FLAG/OUTPUT READY (EF/OR) #1
EMPTY FLAG/OUTPUT READY (EF/OR) #2
PROGRAMMABLE (PAE)
Qm
+1
- Qn
COMMERCIAL AND INDUSTRIAL
m + n
TEMPERATURE RANGES
DATA OUT
JANUARY 30, 2009
4673 drw 22
GATE
(1)