AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 410
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AT90USB1286-16MU
Manufacturer Part Number
AT90USB1286-16MU
Description
Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90USB1286-16MU.pdf
(434 pages)
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Table 30-10. External Data Memory Characteristics, 2.7 - 5.5 Volts, No Wait-state (Continued)
Notes:
Table 30-11. External Data Memory Characteristics, 2.7 - 5.5 Volts, SRWn1 = 0, SRWn0 = 1
Table 30-12. External Data Memory Characteristics, 2.7 - 5.5 Volts, SRWn1 = 1, SRWn0 = 0
410
3b
4
5
6
7
8
9
10
11
12
13
14
15
16
0
10
12
15
16
0
10
12
15
16
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
1/t
t
t
t
t
Symbol
1/t
t
t
t
t
LLAX_LD
AVLLC
AVRL
AVWL
LLWL
LLRL
DVRH
RLDV
RHDX
RLRH
DVWL
WHDX
DVWH
WLWH
RLDV
RLRH
DVWH
WLWH
RLDV
RLRH
DVWH
WLWH
2. This assumes 50% clock duty cycle. The half period is actually the low time of the external clock, XTAL1.
1. This assumes 50% clock duty cycle. The half period is actually the high time of the external clock, XTAL1.
CLCL
CLCL
AT90USB64/128
Parameter
Address Hold after ALE Low,
read access
Address Valid C to ALE Low
Address Valid to RD Low
Address Valid to WR Low
ALE Low to WR Low
ALE Low to RD Low
Data Setup to RD High
Read Low to Data Valid
Data Hold After RD High
RD Pulse Width
Data Setup to WR Low
Data Hold After WR High
Data Valid to WR High
WR Pulse Width
Parameter
Oscillator Frequency
Read Low to Data Valid
RD Pulse Width
Data Valid to WR High
WR Pulse Width
Parameter
Oscillator Frequency
Read Low to Data Valid
RD Pulse Width
Data Valid to WR High
WR Pulse Width
Min
235
235
235
105
235
250
235
Min
485
500
485
Min
735
750
735
115
115
115
45
5
0
4 MHz Oscillator
4 MHz Oscillator
4 MHz Oscillator
Max
Max
Max
190
440
690
130
130
0.5t
0.5t
0.5t
0.5t
1.0t
1.0t
1.0t
1.0t
1.0t
2.0t
2.0t
3.0t
3.0t
1.0t
2.0t
3.0t
CLCL
CLCL
CLCL
CLCL
Min
Min
Min
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
CLCL
0.0
0.0
45
5
0
Variable Oscillator
Variable Oscillator
Variable Oscillator
CLCL
CLCL
CLCL
-10
-10
-10
-20
-15
-15
-15
-15
-15
-15
-15
-15
-15
(1)
(2)
(2)
(1)
0.5t
0.5t
1.0t
2.0t
3.0t
CLCL
CLCL
Max
Max
Max
CLCL
CLCL
CLCL
8
8
+5
+5
-60
-60
-60
7593A–AVR–02/06
(2)
(2)
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
MHz
ns
ns
ns
ns
Unit
MHz
ns
ns
ns
ns
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