IDT77305 Datasheet, PDF (17/27 Pages) Integrated Device Technology – UTOPIAFIFO 4 PORT MULTIPLEXER FIFO

IDT77305
UtopiaFIFO™ 4 to 1 (128 x 9 x 4) Multiplexer-FIFO
Commercial and Industrial Temperature Ranges
RCLK (I)
CLAVS (O)
ENS (I)
SOCS (O)
Q 0 - 17 (O)
tPCLAV
tENSS
MUXn⁽²⁾ (O)
(1)
MUXn (I)
(4)
LDM (O)
FIFO X
LDM ⁽³⁾ (I)
tPSOC
tA
tA
word 1
FIFO X
word 2 ^{word 3 word (n-2)}
word (n-1)
word n
FIFO X
tPMUX
tPLDM
tMUXS
tMUXH
FIFO Y
tPLDM
FIFO (X+1)
tLDMS
tLDMH
NOTES:
1. RR = LOW
2. RR = HIGH
3. MSE = LOW
4. MSE = HIGH
5. n = cell size (in words)
Figure 4b. UtopiaFIFO Rx Mode Output Waveforms (Data Validity for Variable CLAVS)
tPCLAV
tPSOC
tA
word 1
FIFO Y or (X+1)
3206 drw 10
WCLK (I)
CLAVR (O)
ENR (I)
SOCR (I)
DATA (I)
tPCLAV
tENRS
tSOCS
tENRH
tSOCH
tDS
tDH
Data Valid
tCLK
tCLKH
tCLKL
Figure 5a. UtopiaFIFO Tx Mode Input Waveforms
17
tENRS
tENRH
tDS
tDH
Data Valid
3206 drw 11