IDT72V85L20PA IDT, Integrated Device Technology Inc, IDT72V85L20PA Datasheet - Page 9

• Manufacturer Part Number: IDT72V85L20PA
• Description: IC FIFO ASYNC DUAL 20NS 56-TSSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Vr

Specifications of IDT72V85L20PA

• Function: Asynchronous
• Memory Size: 72K (4K x 18)
• Access Time: 20ns
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-TSSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Rate: -
• Other names: 72V85L20PA; 800-1540; 800-1540-5; 800-1540

TABLE I—RESET AND RETRANSMIT
Single Device Configuration/Width Expansion Mode
NOTE:
1. Pointer will increment if flag is High.
TABLE II—RESET AND FIRST LOAD TRUTH TABLE
Depth Expansion/Compound Expansion Mode
NOTE:
1. XI is connected to XO of previous device. See Figure 14. RS = Reset Input, FL/RT = First Load/Retransmit, EF = Empty Flag Output, FF = Full Flag Output,
IDT72V81/72V82/72V83/72V84/72V85 3.3V CMOS DUAL ASYNCHRONOUS FIFO
512 x 9, 1024 x 9, 2048 x 9, 4096 x 9, 8192 x 9
Reset
Retransmit
Read/Write
Reset First Device
Reset All Other Devices
Read/Write
sion Input, HF = Half-Full Flag Output
Mode
Mode
Figure 14. Block Diagram of 2,048 x 9, 4,096 x 9, 8,192 x 9, 16,384 x 9 and 32,768 x 9 FIFO Memory (Depth Expansion)
FULL
RSA
W
D
RS
RS
0
1
1
0
0
1
9
Inputs
Inputs
RT
FL
X
X
0
1
0
1
9
9
FFA
(1)
(1)
(1)
XI
XI
FFB
0
0
0
FFA
FFB
9
72V81/72V82
72V83/72V84
72V81/72V82
72V83/72V84
72V85
72V85
Increment
FIFO A
FIFO B
FIFO A
FIFO B
Location Zero
Location Zero
Read Pointer
Location Zero
Location Zero
Read Pointer
XOA
XIB
9
XOA
XIB
X
(1)
EFB
FLB
EFA
FLB
FLA
XIA
XOB
EFA
XOB
EFB
FLA
XIA
Internal Status
Internal Status
Location Zero
Unchanged
Increment
Write Pointer
Location Zero
Location Zero
Write Pointer
9
X
(1)
COMMERCIAL TEMPERATURE RANGE
V
R
Q
EMPTY
3966 drw 16
EF
CC
X
X
0
EF
X
0
0
Outputs
Outputs
FEBRUARY 5, 2009
FF
X
X
1
FF
X
XI = Expan-
1
1
HF
1
X
X