ia186es Innovasic Semiconductor Inc., ia186es Datasheet - Page 123

• Manufacturer Part Number: ia186es
• Description: 8-bit/16-bit Microcontrollers
• Manufacturer: Innovasic Semiconductor Inc.

IA186ES/IA188ES
8-Bit/16-Bit Microcontrollers
Table 83. PSRAM Refresh Cycle Timing
a
In nanoseconds.
General Timing Requirements
General Timing Responses
Read/Write Cycle Timing Responses
Refresh Cycle Timing Responses
No.
a19–a0
10
11
25
26
27
28
80
81
79
82
85
86
1
2
9
rfsh_n
lcs_n
rd_n
clk0
ale
tDVCL
tCLDX
tCHLH
tLHLL
tCHLL
tCLRL
tRLRH
tCLRH
tRHLH
tCLCLX
tCLCSL
tCHRFD
tCLRF
tRFCY
tLCRF
C L K 0
a 1 9 - a 0
a l e
r d _ n
r f s h _
0ns
Name
80
27
20ns
®
Data in Setup
Data in Hold
ale Active Delay
ale Width
ale Inactive Delay
rd_n Active Delay
rd_n Pulse Width
rd_n Inactive Delay
rd_n Inactive to ale High
lcs_n Inactive Delay
lcs_n Active Delay
clkouta High to rfsh_n Valid
clkouta High to rfsh_n Invalid
rfsh_n Cycle Time
lcs_n Inactive to rfsh_n Active Delay
9
86
40ns
10
Figure 18. PSRAM Refresh Cycle
11
60ns
79
Description
UNCONTROLLED WHEN PRINTED OR COPIED
25
Address
Address
80ns
Page 123 of 154
IA211050902-15
26
85
100ns
82
27
120ns
28
140ns
tCLCH-5
6tCLCL
2tCLCL
tCLCH
tCLCL
Min
10
0
0
0
0
0
0
0
0
0
a
81
December 24, 2008
http://www.Innovasic.com
160ns
Customer Support:
Max
10
10
12
12
Data Sheet
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180ns
a