23
COMMERCIAL TEMPERATURE RANGE
IDT72V3686/72V3696/72V36106 3.3V CMOS TRIPLE BUS SyncFIFO
TM
WITH BUS-MATCHING 16,384 x 36 x 2, 32,768 x 36 x 2, 65, 536 x 36
DATA SIZE TABLE FOR WORD READS FROM FIFO1
SIZE MODE
(1)
DATA WRITTEN TO FIFO1 READ DATA READ FROM FIFO1
NO.
Figure 13. Port B Word Read Cycle Timing for FIFO1 (IDT Standard and FWFT Modes)
Figure 12. Port C Byte Write Cycle Timing for FIFO2 (IDT Standard and FWFT Modes)
NOTE:
1. BE is selected at Master Reset; SIZEB and SIZEC must be static throughout device operation.
SIZE MODE
(1)
WRITE DATA WRITTEN DATA READ FROM FIFO2
NO. TO FIFO2
SIZEC BE C8-C0 A35-A27 A26-A18 A17-A9 A8-A0
HH A B CD
HL A B CD
1A
2B
3C
4D
1D
2C
3B
4A
DATA SIZE TABLE FOR BYTE WRITES TO FIFO2
NOTE:
1. BE is selected at Master Reset; SIZEB and SIZEC must be static throughout device operation.
FFC/IRC
CLKC
t
ENH
t
ENS2
WENC
4676 drw14
HIGH
C0-C8
t
ENS2
t
ENH
t
ENS2
t
ENH
t
DS
t
DH
t
ENH
MBC
CLKB
RENB
EFB/ORB
CSB
HIGH
4676 drw15
B0-B17
Previous Data
t
DIS
t
A
t
A
t
ENS2
t
ENH
No Operation
Read 1
B0-B17
t
A
t
A
Read 1
Read 2
Read 2
Read 3
t
DIS
MBB
(Standard Mode)
(FWFT Mode)
OR
t
EN
t
MDV
t
MDV
t
EN
SIZEB BE A35-A27 A26-A18 A17-A9 A8-A0 B17-B9 B8-B0
HH A B C D1A B
2 C D
HL A B C D1 C D
2A B
