參數(shù)資料
型號: SAA7893HL
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Super audio media player
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP128
封裝: 14 X 20 MM, 1.40 MM HEIGTH, PLASTIC, SOT-425-1, LQFP-128
文件頁數(shù): 55/66頁
文件大小: 1036K
代理商: SAA7893HL
Philips Semiconductors
SAA7893HL
Super audio media player
Product data
Rev. 02 — 26 February 2003
55 of 66
9397 750 10925
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
12.2 Reading
Fig 57. SDRAM interface reading.
data to
SAA7893HL
active
address
address
upper/lower
byte
read
nop
nop
nop
precharge
nop
clk
D_clk
D_ADDR[13:0]
D_DQ[15:0]
D_RASn
D_CASn
D_Wen
D_UDQM
D_LDQM
MBL634
td
tcmd
taddr
tdqm
th
tsu
Table 37:
Symbol
t
d
t
cmd
t
addr
t
dqm
Timing numbers of SDRAM interface reading
Parameter
delay from clk to D_clk of SDRAM interface
delay from clk to control signals
delay from clk to address lines
delay from clk to D_UDQM and D_LDQM
signals
set-up time of data to clk
hold time of data from clk
Conditions
D_clk is clock of SDRAM
Min
3
1
1
1
Max
9
15
15
12
Unit
ns
ns
ns
ns
t
su
t
h
3
3
-
-
ns
ns
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