IDT72V3684 Integrated Device Technology, IDT72V3684 Datasheet - Page 22

• Manufacturer Part Number: IDT72V3684
• Description: 16 K X 36 X 2 Syncbififo, 3.3v
• Manufacturer: Integrated Device Technology

DATA SIZE TABLE FOR BYTE READS FROM FIFO1
NOTE:
1. BE is selected at Master Reset; BM and SIZE must be static throughout device operation.
NOTE:
1. Read From FIFO2.
NOTE:
1. Unused bytes B9-B17, B18-B26, and B27-B35 are indeterminate for byte-size reads.
OR
OR
IDT72V3684/72V3694/72V36104 3.3V CMOS SyncBiFIFO
BUS-MATCHING 16,384 x 36 x 2, 32,768 x 36 x 2 and 65, 536 x 36 x 2
BM
(Standard Mode)
H
H
(Standard Mode)
(FWFT Mode)
EFB/ORB
(FWFT Mode)
EFA/ORA
B0-B8
B0-B8
W/RB
A0-A35
CLKB
SIZE MODE
A0-A35
MBB
CSB
ENB
CLKA
W/RA
MBA
CSA
ENA
SIZE
H
H
HIGH
HIGH
(1)
Figure 13. Port-B Byte Read Cycle Timing for FIFO1 (IDT Standard and FWFT Modes)
t
CLKH
BE
Figure 14. Port-A Read Cycle Timing for FIFO2 (IDT Standard and FWFT Modes)
H
L
t
t
EN
EN
t
t
EN
EN
t
t
t
MDV
MDV
CLK
t
ENS2
A35-A27
t
t
MDV
MDV
A
A
t
CLKL
Previous Data
Read 1
t
ENS2
Previous Data
t
DATA WRITTEN TO FIFO1
t
W1
ENH
t
A
A
A26-A18
(1)
B
B
t
t
t
ENH
A
A
TM
WITH
Read 1
Read 2
22
A17-A9
t
t
A
A
C
C
W1
W2
t
ENS2
(1)
(1)
Read 2
Read 3
A8-A0
D
D
t
t
t
t
A
A
A
t
A
ENH
COMMERCIAL TEMPERATURE RANGE
READ
NO.
Read 3
Read 4
1
2
3
4
1
2
3
4
t
No Operation
t
A
t
A
ENS2
W3
DATA READ FROM FIFO1
W2
No Operation
(1)
(1)
Read 4
Read 5
B8-B0
D
D
A
B
C
B
A
C
t
ENH
4677 drw16
4677 drw15
t
t
DIS
DIS
t
t
DIS
DIS