AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 187
AT83C51SND1C_03
Manufacturer Part Number
AT83C51SND1C_03
Description
Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C51SND1C_03.pdf
(210 pages)
- Current page: 187 of 210
- Download datasheet (2Mb)
Waveforms
4109E–8051–06/03
Table 161. External 8-bit Bus Cycle - Data Write AC Timings
V
Figure 142. External 8-bit Bus Cycle - Data Read Waveforms
Symbol
DD
T
T
T
T
T
T
T
T
T
T
WLWH
QVWH
WHQX
WHLH
AVWL
CLCL
LHLL
AVLL
LLAX
LLWL
= 2.7 to 3.3 V, T
ALE
Clock Period
ALE Pulse Width
Address Valid to ALE Low
Address hold after ALE Low
ALE Low to WR Low
WR Pulse Width
WR High to ALE High
Address Valid to WR Low
Data Valid to WR High
Data Hold after WR High
RD
P0
P2
Parameter
A
= -40 to +85°C
T
LHLL
T
AVLL
A7:0
T
AVRL
T
T
T
LLAX
T
RLAZ
LLRL
AVDV
2·T
3·T
6·T
4·T
7·T
T
T
T
T
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
Min
50
Standard Mode
Variable Clock
-20
-20
-20
-15
-15
-30
-25
-30
-20
T
RLDV
T
A15:8
T
CLCL
RLRH
Max
+20
AT8xC51SND1C
Data In
D7:0
0.5·T
0.5·T
1.5·T
0.5·T
3.5·T
0.5·T
3·T
2·T
T
CLCL
CLCL
CLCL
T
Min
50
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
RHDX
Variable Clock
T
-15
RHDZ
-25
-30
X2 Mode
-20
-20
-30
-20 0.5·T
-20
-15
T
RHLH
Max
CLCL
+20
Unit
187
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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