AD6620S/PCB Analog Devices Inc, AD6620S/PCB Datasheet - Page 9

• Manufacturer Part Number: AD6620S/PCB
• Description: BOARD EVAL DUAL RCVR W/AD6620AS
• Manufacturer: Analog Devices Inc

Specifications of AD6620S/PCB

• Rohs Status: RoHS non-compliant
• Module/board Type: Evaluation Board
• For Use With/related Products: AD6620

MICROPORT MODE0, READ
Timing is synchronous to CLK; MODE = 0.
MICROPORT MODE0, WRITE
Timing is synchronous to CLK; MODE = 0.
D[7:0]
A[2:0]
D[7:0]
A[2:0]
CLK
RDY
RDY
WR
RD
CS
CLK
WR
RD
CS
NOTES:
1
2
3
RDY IS DRIVEN LOW ASYNCHRONOUSLY BY RD AND CS GOING LOW AND RETURNS HIGH ON THE RISING EDGE
THE SIGNAL, WR, MAY REMAIN HIGH AND RD MAY REMAIN LOW TO CONTINUE READ MODE.
CS MUST RETURN TO HIGH STATE AND BE SAMPLED BY CLK (N+4 SHOWN) TO COMPLETE READ.
OF CLK "N+3" FOR INTERNAL ACCESS (A[2:0] = 000), CLK "N+2" OTHERWISE.
3
2
1
2
3
2
1
2
1
t
SAM
t
NOTES:
1
2
3
* THE NEXT WRITE MAY BE INITIATED ON CLK, N*.
ZR
RDY IS DRIVEN LOW ASYNCHRONOUSLY BY WR AND CS GOING LOW AND RETURNS HIGH ON THE
THESE SIGNALS (R/W AND DS) MAY REMAIN IN LOW STATE TO CONTINUE WRITING DATA.
CS MUST RETURN TO HIGH STATE AND BE SAMPLED BY CLK (N+3 SHOWN) TO COMPLETE WRITE.
RISING EDGE OF CLK "N+2".
t
t
SAM
SAM
t
RDY
N
t
SC
t
SC
t
RDY
N
N+1
DATA VALID
ADDRESS VALID
N+1
ADDRESS VALID
t
N+2
DD
N+2
t
t
RDY
HC
t
t
HM
HA
DATA VALID
N+3
t
HC
t
SC
t
RDY
t
N+3
t
HC
ZD
t
N+4
HC
t
HA
N*
N
AD6620