參數(shù)資料
型號(hào): SAA4951
廠商: NXP Semiconductors N.V.
英文描述: RES 6.49K OHM 1/16W 0.5% 0402SMD
中文描述: 內(nèi)存控制器
文件頁(yè)數(shù): 19/25頁(yè)
文件大?。?/td> 95K
代理商: SAA4951
April 1994
19
Philips Semiconductors
Preliminary specification
Memory controller
SAA4951
Timing specification
The internal delays of the output signals referred to the respective clock are given in Table 8.
Table 8
Conditions: V
DD
= +4.5 V; T
j
=+70
°
C (worst case).
Delay table.
CLK
OUT
LOAD
(pF)
t
PLH
(ns)
t
PHL
(ns)
t
PD
(ns)
LLA
LLD
LLDFL
SRC
SWC1
SWC2
SRC
SRC
LLDFL
LLDFL
SWC1
SRC
SRC
SWC1
LLDFL
SWC1
LLDFL
LLA
SWC1
SRC
SRC
SWC2
WE1
WE2
RE1
RE2
HDFL
HRDFL
HRA
HRD
BLND
ALDUV
VB
CLV
VDFL
WE1(EXT)
15
45
45
25
15
10
10
10
25
10
10
10
25
25
25
25
25
25
6.4
11.2
11.9
3.2
15.9
8.0
7.0
7.2
12.8
11.9
6.5
5.6
7.4
11.5
28.2
8.3
24.6
18.1
6.5
13.7
13.9
2.6
18.9
10.9
8.6
8.7
15.8
13.9
8.4
7.6
10.3
14.0
30.3
11.3
27.6
21.1
Fig.11 Timing diagram.
handbook, full pagewidth
MGH140
CLK
OUT
tPLH
tPHL
tPD
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