IDT72V3612 3.3V, CMOS SyncBiFIFOTM
64 x 36 x 2
COMMERCIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER RECOMMENDED RANGES OF
SUPPLY VOLTAGE AND OPERATING FREE-AIR TEMPERATURE
Commercial: Vcc=3.3V± 0.30V; for 12ns (83MHz) operation, Vcc=3.3V ±0.15V; TA = 0° C to +70°C; JEDEC JESD8-A compliant
Symbol
fS
tCLK
tCLKH
tCLKL
tDS
tENS1
tENS2
tENS3
tPGS
tRSTS
tFSS
tDH
tENH1
tENH2
tENH3
tPGH
tRSTH
tFSH
tSKEW1(3)
tSKEW2(3,4)
Parameter
Clock Frequency, CLKA or CLKB
Clock Cycle Time, CLKA or CLKB
Pulse Duration, CLKA and CLKB HIGH
Pulse Duration, CLKA and CLKB LOW
Setup Time, A0-A35 before CLKA↑ and B0-B35 before CLKB↑
Setup Time, CSA, W/RA before CLKA↑; CSB, W/RB before CLKB↑
Setup Time, ENA, before CLKA↑; ENB before CLKB↑
Setup Time, MBA before CLKA↑: MBB before CLKB↑
Setup Time, ODD/EVEN and PGA before CLKA↑;
ODD/EVEN and PGB before CLKB↑(1)
Setup Time, RST LOW before CLKA↑ or CLKB↑(2)
Setup Time, FS0/FS1 before RST HIGH
Hold Time, A0-A35 after CLKA↑ and B0-B35 after CLKB↑
Hold Time, CSA W/RA after CLKA↑; CSB, W/RB after CLKB↑
Hold Time, ENA, after CLKA↑; ENB after CLKB↑
Hold Time, MBA after CLKA↑; MBB after CLKB↑
Hold Time, ODD/EVEN and PGA after CLKA↑;
ODD/EVEN and PGB after CLKB↑(1)
Hold Time, RST LOW after CLKA↑ or CLKB↑(2)
Hold Time, FS0 and FS1 after RST HIGH
Skew Time, between CLKA↑ and CLKB↑ for EFA, EFB,
FFA, and FFB
Skew Time, between CLKA↑ and CLKB↑ for AEA, AEB,
AFA, and AFB
IDT72V3612L12 IDT72V3612L15
Min.
Max.
Min.
Max.
Unit
–
83
–
66.7
MHz
12
–
15
–
ns
5
–
6
–
ns
5
–
6
–
ns
4
–
4
–
ns
3.5
–
6
–
ns
3.5
–
4
–
ns
3.5
–
4
–
ns
3
–
4
–
ns
4
–
5
–
ns
4
–
5
–
ns
0.5
–
1
–
ns
0.5
–
1
–
ns
1
–
1
–
ns
1
–
1
–
ns
0
–
1
–
ns
4
–
5
–
ns
4
–
4
–
ns
5.5
–
8
–
ns
14
–
14
–
ns
NOTES:
1. Only applies for a clock edge that does a FIFO read.
2. Requirement to count the clock edge as one of at least four needed to reset a FIFO.
3. Skew time is not a timing constraint for proper device operation and is only included to illustrate the timing relationship between CLKA cycle and CLKB cycle.
4. Design simulated, not tested.
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