IDT72V3652L10PF IDT, Integrated Device Technology Inc, IDT72V3652L10PF Datasheet - Page 5

• Manufacturer Part Number: IDT72V3652L10PF
• Description: IC BI FIFO 4096X36 10NS 120QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Vr

Specifications of IDT72V3652L10PF

• Function: Asynchronous, Synchronous
• Memory Size: 147K (4K x 36)
• Data Rate: 100MHz
• Access Time: 10ns
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 72V3652L10PF

PIN DESCRIPTIONS (CONTINUED)
IDT72V3652/72V3662/72V3672 3.3V CMOS SyncBiFIFO
2,048 x 36 x 2, 4,096 x 36 x 2 and 8,192 x 36 x 2
Symbol
MBA
MBF1
MBF2
RST1
RST2
W/RA
W/RB
MBB
Port A Mailbox
Select
Port B Mailbox
Select
Mail1 Register
Flag
Mail2 Register
Flag
FIFO1 Reset
FIFO2 Reset
Port A Write/
Read Select
Port B Write/
Read Select
Name
I/O
O
O
I
I
I
I
I
I
A HIGH level on MBA chooses a mailbox register for a port A read or write operation. When the
A0-A35 outputs are active, a HIGH level on MBA selects data from the mail2 register for output and a
LOW level selects FIFO2 output register data for output.
A HIGH level on MBB chooses a mailbox register for a port B read or write operation. When the
B0-B35 outputs are active, a HIGH level on MBB selects data from the mail1 register or output and a
LOW level selects FIFO1 output register data for output.
MBF1 is set LOW by a LOW-to-HIGH transition of CLKA that writes data to the mail1 register.
Writes to the mail1 register are inhibited while MBF1 is LOW. MBF1 is set HIGH by a LOW-to-HIGH
transition of CLKB when a port B read is selected and MBB is HIGH. MBF1 is set HIGH when FIFO1
is reset.
MBF2 is set LOW by a LOW-to-HIGH transition of CLKB that writes data to the mail2 register. Writes
to the mail2 register are inhibited while MBF2 is LOW. MBF2 is set HIGH by a LOW-to-HIGH
transition of CLKA when a port A read is selected and MBA is HIGH. MBF2 is also set HIGH when
FIFO2 is reset.
To reset FIFO1, four LOW-to-HIGH transitions of CLKA and four LOW-to-HIGH transitions of CLKB must occur
while RST1 is LOW. The LOW-to-HIGH transition of RST1 latches the status of FS0 and FS1 for AFA
and AEB offset selection. FIFO1 must be reset upon power up before data is written to its RAM.
To reset FIFO2, four LOW-to-HIGH transitions of CLKA and four LOW-to-HIGH transitions of CLKB must occur
while RST2 is LOW. The LOW-to-HIGH transition of RST2 latches the status of FS0 and FS1 for AFB
and AEA offset selection. FIFO2 must be reset upon power up before data is written to its RAM.
A HIGH selects a write operation and a LOW selects a read operation on port A for a LOW-to-HIGH
transition of CLKA. The A0-A35 outputs are in the HIGH impedance state when W/RA is HIGH.
A LOW selects a write operation and a HIGH selects a read operation on port B for a LOW-to-HIGH
transition of CLKB. The B0-B35 outputs are in the HIGH impedance state when W/RB is LOW.
TM
5
Description
COMMERCIAL TEMPERATURE RANGE
FEBRUARY 4, 2009