參數(shù)資料
型號: STLC5444
廠商: 意法半導體
英文描述: Quad Feed Power Supply(ISDN四饋電電源)
中文描述: 四飼料電源(綜合業(yè)務數(shù)字網(wǎng)四饋電電源)
文件頁數(shù): 6/17頁
文件大小: 140K
代理商: STLC5444
SWITCHING CHARACTERISTICS
(V
BB
= -54V;V
CC
= 5V;unlessotherwisespecified)
MICROPROCESSOR READ/WRITE TIMING NON MULTIPLEXED MODE (for references see figure 1a
and 2b).
Symbol
t
RLRH
t
RHRL
Parameter
Min.
260
200
220
Max.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
RD, CS pulse width
RD, recovery time
T
amb
: 0 to 70
°
C
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
RLDA
t
RHDZ
RD, CS low to data available
RD or CS high to data Z
260
130
160
T
amb
: 0 to 70
°
C
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
ASRL
t
AHRH
t
ASWL
t
AHWH
t
ADDA
Address setup time to READ active
Address hold time to READ inactive
Address setup time to WRITE active
Addess hold time to WRITE inactive
Address stable to data available
0
0
30
50
360
390
200
200
100
20
40
200
T
amb
: 0 to 70
°
C
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
WLWH
t
WHWL
t
DAWH
t
WHDZ
WR or CS pulse width
Write recovery time
Data setup time
Data hold time
T
amb
: 0 to 70
°
C
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
RES
Reset Pulse with
Note:
AC timingsare testedat 0.8V and 2V with input levelsof 0.4Vand 2.4V.
SWITCHING CHARACTERISTICS
(V
BB
= -54V;V
CC
= 5V;unlessotherwisespecified)
MICROPROCESSORREAD/WRITE TIMING MULTIPLEXEDMODE (for referencessee figure1 and2).
Symbol
Parameter
t
RLRH
RD, CS pulse width
t
RHRL
RD, recovery time
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
RLDA
RD, CS low to data available
t
RHDZ
RD or CS high to data Z
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
AHAL
ALE pulse width
t
ADAL
Address setup time
t
ADAZ
Address hold time
t
AZRL
Address Z to RD low
t
AZWL
Address Z to WR Low
t
ADDA
Address stable to data available
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
WLWH
WR or CS pulse width
t
WHWL
Write recovery time
t
DAWH
Data setup time
t
WHDZ
Data hold time
T
amb
: -40 to 0
°
C and +70
°
C to +85
°
C
t
RES
Reset Pulse with
Note:
AC timingsare testedat 0.8V and 2V with input levelsof 0.4Vand 2.4V.
Min.
260
200
220
Max.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
T
amb
: 0 to 70
°
C
260
130
160
T
amb
: 0 to 70
°
C
100
60
50
0
0
360
390
200
200
100
20
40
200
T
amb
: 0 to 70
°
C
T
amb
: 0 to 70
°
C
Si Timing
(at10%of finalvalue)
Symbol
t
EN
Si outputenable time (from LER)
t
DIS
Si outputdisable time (from LER or RESET)
Parameter
Test condition
R
LOAD
= 3k
Typ.
2
3
Max.
5
6
Unit
μ
s
μ
s
STLC5444
6/17
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