at85c51snd3 ATMEL Corporation, at85c51snd3 Datasheet - Page 254

• Manufacturer Part Number: at85c51snd3
• Description: At85c51snd3 Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

Timings
Waveforms
254
AT85C51SND3B
Table 286. PSI Write Cycle AC timings
V
Note:
Table 287. PSI Read Cycle AC timings
V
Figure 149. PSI Write Cycle Waveform
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AVAV
WLWH
AVEL
WHAX
WLDV
WHDX
ELWH
WHEH
AVAV
RLRH
ELQV
AVQV
RLQV
EHQZ
RHQZ
DD
DD
= 1.65 to 3.6 V; T
= 1.65 to 3.6 V; T
Symbol
Symbol
SD7:0
SWR
1. PSWS2:0 value in PSICON register
SCS
SA0
Parameter
Write Cycle Time
SWR Pulse Width
Address Setup Time
Address Hold Time
SWR to Data Valid Time
Data Hold Time
SCS Setup Time
SCS Hold Time
Parameter
Read Cycle Time
SRD Pulse Width
SCS Access Time
Address Access Time
SRD Access Time
Data Float after SCS High
Data Float after SRD High
A
A
= -40 to +85°C, CL ≤ 50pF
= -40 to +85°C, CL ≤ 50pF
t
AVEL
t
WLDV
t
ELWH
t
WLWH
Data
t
t
t
WHEH
WHAX
WHDX
4+PSWS
3+PSWS
Min
Min
4
0
0
0
0
4
2
(1)
(1)
3+PSWS
Max
Max
3.5
3.5
1.5
1.5
1.5
7632D–MP3–01/07
(1)
T
T
T
T
T
T
T
T
T
T
T
Unit
Unit
ns
ns
ns
ns
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC
OSC