參數(shù)資料
型號: SM5859AF
廠商: Seiko NPC Corporation
英文描述: compression and non compression type antishock memory controller
中文描述: 壓縮和非壓縮型抗休克內(nèi)存控制器
文件頁數(shù): 6/33頁
文件大?。?/td> 173K
代理商: SM5859AF
NIPPON PRECISION CIRCUITS-6
SM5859AF
Parameter
Symbol
Condition
System clock
Rating
Typ
29.5
29.5
59
Unit
Min
26
26
56
Max
125
125
250
Clock pulsewidth (HIGH level)
Clock pulsewidth (LOW level)
Clock pulse cycle
t
CWH
t
CWL
t
CY
ns
ns
ns
384fs
CWH
t
CWL
t
CY
t
0.5V
DD
CLK
Parameter
Symbol
Rating
Typ
Unit
Condition
Min
75
75
150
40
40
40
40
0
Max
YSCK pulsewidth (HIGH level)
YSCK pulsewidth (LOW level)
YSCK pulse cycle
YSRDATA setup time
YSRDATA hold time
Last YSCK rising edge to YLRCK edge
YLRCK edge to first YSCK rising edge
t
BCWH
t
BCWL
t
BCY
t
DS
t
DH
t
BL
t
LB
ns
ns
ns
ns
ns
ns
ns
2fs
Memory system ON
(MSON=H)
Memory system OFF
(MSON=L)
YLRCK pulse frequency
See note below.
fs
fs
Note. When the memory system is OFF (through mode), the input data rate is synchronized to the system clock input (384fs), so input
data needs to be at 1/384 of this frequency. But, this IC can tolerate a certain amount of jitter. For details, refer to Through-mode
operation.
YSCK
YSRDATA
YLRCK
BCY
t
DS
t
DH
t
BCWH
t
BCWL
t
LB
t
BL
t
0.5V
DD
0.5V
DD
0.5V
DD
Serial input (YSRDATA, YLRCK, YSCK pins)
AC characteristics
Standard voltage: VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = -40 to 85
°
C
Low-voltage: VDD = 2.7 to 4.5 V, VSS = 0 V, Ta = -20 to 70
°
C
(*) Typical values are for fs = 44.1 kHz
System clock (CLK pin)
System clock input
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