IDT72142 Ver la hoja de datos (PDF) - Integrated Device Technology
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IDT72142 Datasheet PDF : 13 Pages
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IDT72132, IDT72142
CMOS SERIAL-TO-PARALLEL FIFO 2048 x 9 AND 4096 x 9
AC ELECTRICAL CHARACTERISTICS
(Commercial: VCC = 5.0V ± 10%, TA = 0°C to +70°C)
Symbol
Parameter
tS
Parallel Shift Frequency
tSICP
Serial-InShift Frequency
PARALLEL OUTPUT TIMINGS
tA
Access Time
tRR
Read Recovery Time
tRPW
Read Pulse Width
tRC
Read Cycle Time
tRLZ
Read Pulse LOW to Data Bus at Low-Z(1)
tRHZ
Read Pulse HIGH to Data Bus at High-Z(1)
tDV
tOEHZ
tOELZ
Data Valid from Read Pulse HIGH
Output Enable to High-Z (Disable)(1)
Output Enable to Low-Z (Enable)(1)
tAOE
Output Enable to Data Valid (Q0-8)
SERIAL INPUT TIMINGS
tSIS
Serial Data in Set-Up Time to SICP Rising Edge
tSIH
Serial Data in Hold Time to SICP Rising Edge
tSIX
SIX Set-Up Time to SICP Rising Edge
tSICW Serial-In Clock Width HIGH/LOW
FLAG TIMINGS
tSICEF SICP Rising Edge (Last Bit - First Word) to EF HIGH
tSICFF SICP Rising Edge (Bit 1 - Last Word) to FF LOW
tSICF
SICP Rising Edge to HF, AEF
tRFFSI Recovery Time SICP After FF Goes HIGH
tREF
Read LOW to EF LOW
tRFF
Read HIGH to FF HIGH
tRF
Read HIGH to Transitioning HF and AEF
tRPE
Read Pulse Width After EF HIGH
RESET TIMINGS
tRSC
Reset Cycle Time
tRS
Reset Pulse Width
tRSS
Reset Set-up Time
tRSR
tRSF1
tRSF2
Reset Recovery Time
Reset to EF and AEF LOW
Reset to HF and FF HIGH
tRSDL Reset to D LOW
tPOI
SICP Rising Edge to D
RETRANSMIT TIMINGS
tRTC
Retransmit Cycle Time
tRT
Retransmit Pulse Width
tRTS
Retransmit Set-up Time
tRTR
Retransmit Recovery Time
DEPTH EXPANSION MODE TIMINGS
tXOL
Read/Write to XO LOW
tXOH
Read/Write to XO HIGH
tXI
XI Pulse Width
tXIR
XI Recovery Time
tXIS
XI Set-up Time
NOTE:
1. Guaranteed by design minimum times, not tested
COMMERCIAL TEMPERATURE RANGES
Commercial
IDT72132L35
IDT72142L35
IDT72132L50
IDT72142L50
Min.
Max.
Min.
Max.
—
22.2
—
15
—
50
—
40
Unit
MHz
MHz
—
35
—
50
ns
10
—
15
—
ns
35
—
50
—
ns
45
—
65
—
ns
5
—
10
—
ns
—
20
—
30
ns
5
—
5
—
ns
—
15
—
15
ns
5
—
5
—
ns
—
20
—
22
ns
12
—
15
—
ns
0
—
0
—
ns
5
—
5
—
ns
8
—
10
—
ns
—
45
—
65
ns
—
30
—
40
ns
—
45
—
65
ns
15
—
15
—
ns
—
30
—
45
ns
—
30
—
45
ns
—
45
—
65
ns
35
—
50
—
ns
45
—
65
—
ns
35
—
50
—
ns
35
—
50
—
ns
10
—
15
—
ns
—
45
—
65
ns
—
45
—
65
ns
20
—
35
—
ns
5
17
5
20
ns
45
—
65
—
ns
35
—
50
—
ns
35
—
50
—
ns
10
—
15
—
ns
—
40
—
50
ns
—
40
—
50
ns
35
—
50
—
ns
10
—
10
—
ns
16
—
15
—
ns
2752 tbl 07
5.36
4
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