AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 189

• Manufacturer Part Number: AT83C51SND1C_03
• Description: Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
• Manufacturer: ATMEL [ATMEL Corporation]

Timings
4109E–8051–06/03
Test conditions: capacitive load on all pins= 50 pF.
Table 163. External IDE 16-bit Bus Cycle - Data Read AC Timings
V
Table 164. External IDE 16-bit Bus Cycle - Data Write AC Timings
V
Symbol
Symbol
DD
DD
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWH
WHQX
RHDX
WHLH
AVWL
RLRH
RHLH
AVDV
AVRL
RLDV
RHDZ
CLCL
LHLL
AVLL
LLAX
LLRL
RLAZ
CLCL
LHLL
AVLL
LLAX
LLWL
= 2.7 to 3.3 V, T
= 2.7 to 3.3 V, T
Clock Period
ALE Pulse Width
Address Valid to ALE Low
Address hold after ALE Low
ALE Low to RD Low
RD Pulse Width
RD high to ALE High
Address Valid to Valid Data In
Address Valid to RD Low
RD Low to Valid Data
RD Low to Address Float
Data Hold After RD High
Instruction Float After RD High
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
Parameter
Parameter
A
A
= -40 to +85°C
= -40 to +85°C
2·T
3·T
6·T
4·T
2·T
3·T
6·T
4·T
7·T
T
T
T
T
T
T
T
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
Min
Min
50
50
Standard Mode
0
Standard Mode
Variable Clock
Variable Clock
-20
-20
-20
-20
-20
-20
-15
-15
-30
-25
-30
-15
-30
-25
-30
-20
9·T
5·T
2·T
T
T
CLCL
CLCL
Max
Max
CLCL
CLCL
CLCL
0
+20
+20
-65
-30
-25
AT8xC51SND1C
0.5·T
0.5·T
1.5·T
0.5·T
0.5·T
0.5·T
1.5·T
0.5·T
3.5·T
0.5·T
3·T
2·T
3·T
2·T
T
T
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
Min
Min
50
50
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0
Variable Clock
Variable Clock
-15
-15
-25
-30
-25
-30
X2 Mode
X2 Mode
-20
-20
-30
-20 0.5·T
-20
-20
-30
-20 0.5·T
-20
-15
4.5·T
2.5·T
T
CLCL
Max
Max
CLCL
CLCL
CLCL
CLCL
0
-25
+20
+20
-65
-30
Unit
Unit
189
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns