DT72T1845 Datasheet, PDF (13/56 Pages) Integrated Device Technology – 2.5 VOLT HIGH-SPEED TeraSync™ FIFO

IDT72T1845/55/65/75/85/95/105/115/125 2.5V TeraSync™ 18-BIT/9-BIT FIFO 2Kx18/4Kx9, 4Kx18/
8Kx9, 8Kx18/16Kx9, 16Kx18/32Kx9, 32Kx18/64Kx9, 64Kx18/128Kx9, 128Kx18/256Kx9, 256Kx18/512Kx9, 512Kx18/1Mx9
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS ⎯ ASYNCHRONOUS TIMING
(Commercial: VCC = 2.5V ± 5%, TA = 0°C to +70°C;Industrial: VCC = 2.5V ± 5%, TA = -40°C to +85°C)
Commercial Com’l & Ind’l⁽²⁾ Commercial
Commercial
IDT72T1845L4-4
IDT72T1855L4-4
IDT72T1865L4-4
IDT72T1875L4-4
IDT72T1885L4-4
IDT72T1895L4-4
IDT72T18105L4-4
IDT72T18115L4-4
IDT72T18125L4-4
IDT72T1845L5
IDT72T1855L5
IDT72T1865L5
IDT72T1875L5
IDT72T1885L5
IDT72T1895L5
IDT72T18105L5
IDT72T18115L5
IDT72T18125L5
IDT72T1845L6-7
IDT72T1855L6-7
IDT72T1865L6-7
IDT72T1875L6-7
IDT72T1885L6-7
IDT72T1895L6-7
IDT72T18105L6-7
IDT72T18115L6-7
IDT72T18125L6-7
IDT72T18105L10
IDT72T18115L10
IDT72T18125L10
Symbol
Parameter
Min. Max. Min. Max. Min. Max. Min.
fA
Cycle Frequency (Asynchronous)
tAA
Data Access Time
tCYC
Cycle Time
—
100 —
0.6
8
0.6
10
—
12
83
—
66
—
10
0.6 12
0.6
—
15
—
20
tCYH
Cycle HIGH Time
4.5
—
5
—
7
—
8
tCYL
Cycle LOW Time
4.5
—
5
—
7
—
8
tRPE
Read Pulse after EF HIGH
8
—
10
—
12
—
14
tFFA
Clock to Asynchronous FF
—
8
—
10
—
12
—
tEFA
Clock to Asynchronous EF
—
8
—
10
—
12
—
tPAFA
Clock to Asynchronous Programmable Almost-Full Flag
—
8
—
10
—
12
—
tPAEA
Clock to Asynchronous Programmable Almost-Empty Flag —
8
—
10
—
12
—
tOLZ
Output Enable to Output in Low Z⁽³⁾
tOE
Output Enable to Output Valid
tOHZ
Output Enable to Output in High Z⁽³⁾
tHF
Clock to HF
0
—
0
—
0
—
0
—
3.4 —
3.6
— 3.8
—
—
3.4 —
3.6
— 3.8
—
—
8
—
10
—
12
—
NOTES:
1. All AC timings apply to both Standard IDT mode and First Word Fall Through mode.
2. Industrial temperature range product for the 5ns speed grade is available as a standard device. All other speed grades are available by special order.
3. Values guaranteed by design, not currently tested.
Max. Unit
50 MHz
14
ns
—
ns
—
ns
—
ns
—
ns
14
ns
14
ns
14
ns
14
ns
—
ns
4.5
ns
4.5
ns
14
ns
13