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參數(shù)資料
| 型號： | S-24H30 |
| 廠商： | Seiko Instruments Inc. |
| 英文描述： | 64 Bits Non-Volatile CMOS RAM(64位CMOS非易失性RAM) |
| 中文描述： | 64位非揮發(fā)性CMOS存儲器（64位的CMOS非易失性內(nèi)存） |
| 文件頁數(shù)： | 11/16頁 |
| 文件大小： | 109K |
| 代理商： | S-24H30 |
SERIAL NON-VOLATILE RAM
S-24 Series
10
Seiko Instruments Inc.
Interfacing example 1 : With Intel 8051, 8052
Interfacing example 2 : With other CPU
When the S-24 Series is connected to CPU other than Intel 8051 and 8052, delay circuit should be set by a capacitor and a
resistor at DO terminal (Figure 19), delaying the signal more than 200 ns as in Figure 20 to assure the data hold time (t
DHU
)
and the data setup time (t
DSU
) of CPU.
The maximum speed of the SK clock (f
SKMAX
) is expressed by the following formula:
For example, when interfacing with NEC
μ
PD75XX series, f
SKMAX
is as follows:
8051, 8052
PX.X
P3.1
P3.0
GND
STORE
RECALL
V
CC
DO
CE
SK
DI
Figure 18
Figure 19
200pF
1k
V
CC
CE
SK
DI
DO
STORE
RECALL
GND
CPU
Figure 20
t
DHU
t
PD
SK
DO
(without delay)
DO
(with delay)
t
PD
t
DSU
t
SK
Valid data
Valid data
Valid data
Valid data
t
SK
1
f
SKMAX
=
t
DSU
+t
DHU
+t
PD
max.
=
1
μ
PD75XX series
t
DSU
: 300 ns min.
t
DHU
: 450 ns min.
S-24 Series
t
PD
: 0 ns min. , 300 ns max.
1
×
10
9
t
SK
1
f
SKMAX
=
=
300+450+300
1.05
μ
s
1
=
= 952 kHz
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S-24H45I10 | SERIAL NON-VOLATILE RAM |
| S-24H30I10 | CONN DIN PLUG VERT 96POS 3ROWS |
| S-24S30I10 | DIN 41612 PCB Connector; Number of Contacts:96; Number of Rows:3; Pitch Spacing:0.1"; Connector Mounting:PC Board; Contact Termination:Press-Fit; Current Rating:3A; Gender:Male; Leaded Process Compatible:Yes |
| S-24H30IF10 | SERIAL NON-VOLATILE RAM |
| S-24S30IF10 | SERIAL NON-VOLATILE RAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S-24H30I10 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SERIAL NON-VOLATILE RAM |
| S-24H30IF10 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SERIAL NON-VOLATILE RAM |
| S-24H45 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SERIAL NON-VOLATILE RAM |
| S-24H45I10 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SERIAL NON-VOLATILE RAM |
| S-24H45IF10 | 制造商:SII 制造商全稱:Seiko Instruments Inc 功能描述:SERIAL NON-VOLATILE RAM |
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