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S3P9014 bảng dữ liệu(PDF) 19 Page - Samsung semiconductor

tên linh kiện S3P9014
Giải thích chi tiết về linh kiện  SAM87RI family of 8-bit single-chip CMOS microcontrollers
PDF  26 Pages
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nhà sản xuất  SAMSUNG [Samsung semiconductor]
Trang chủ  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

S3P9014 bảng dữ liệu(HTML) 19 Page - Samsung semiconductor

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S3C9004/P9004/C9014/P9014
ELECTRICAL DATA
12-11
Table 12-8. External Memory Timing Characteristics (4 MHz)
(T
A = – 40
°C to + 85°C, V
DD = 4.5 V to 5.5 V)
Number
Symbol
Parameter
Normal Timing (ns)
Min
Max
1
t
dA (AS)
Address valid to
AS ↑ delay
10
–
2
t
dAS (A)
AS ↑ to address float delay
35
–
3
t
dAS (DR)
AS ↑ to read data required valid
–
140
4
t
wAS
AS Low width
88
–
5
t
dA (DS)
Address float to
DS ↓
0
–
6a
t
wDS (read)
DS (read) Low width
314
–
6b
t
wDS (write)
DS (write) Low width
164
–
7
t
dDS (DR)
DS ↓ to read data required valid
–
80
8
t
hDS (DR)
Read data to
DS ↑ hold time
0
–
9
t
dDS (A)
DS ↑ to address active delay
20
–
10
t
dDS (AS)
DS ↑ to AS ↓ delay
30
–
11
t
dDO (DS)
Write data valid to
DS (write) ↓ delay
10
–
12
t
dRW (AS)
R/
W valid to AS ↑ delay
20
–
13
t
dDS (DW)
DS ↑ to write data not valid delay
20
–
NOTES:
1.
All times are in nano seconds (ns) and assume an 4 MHz input frequency.
2.
Wait states add 100 ns to the time of numbers 3, 6a, 6b, and 7.



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