參數(shù)資料
型號: XRT79L72
廠商: Exar Corporation
英文描述: 2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
中文描述: 2 -通道DS3/E3自動(dòng)柜員機(jī)用戶到網(wǎng)絡(luò)接口/ Combo IC對購買力平價(jià)
文件頁數(shù): 53/72頁
文件大小: 441K
代理商: XRT79L72
xr
2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
PRELIMINARY
XRT79L72
REV. P1.0.2
50
N
OTE
:
The value for "t0" through "t12" can be found in Table 4.
F
IGURE
7. S
YNCHRONOUS
M
ODE
3 - IBM P
OWER
PC 403 I
NTERFACE
TIMING
(R
EAD
C
YCLE
)
T
ABLE
4: T
IMING
I
NFORMATION
FOR
THE
M
ICROPROCESSOR
I
NTERFACE
,
WHEN
CONFIGURED
TO
OPERATE
IN
THE
IBM P
OWER
PC403 M
ODE
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 2.5V±5%, unless otherwise specified.
T
IMING
D
ESCRIPTION
M
IN
.
T
YP
.
M
AX
.
t0
pCS_L low to PCLK high
4
-
-
t1
pRW_L low to PCLK high
9
-
-
t2
Address setup time to PCLK high
4
-
-
t3
Address hold time from PCLK high
2
-
-
t4
Data setup time (WRITE cycle)
4
-
-
t5
Data hold time (WRITE cycle) from PCLK High
0
-
-
t6
pWE_L low to Clock high
4
-
-
t7
Clock high to pWE_L high from PCLK high
0
-
-
t8
Clock high to pRDY high
4.4
-
10.5
t9
Clock high to pRDY low
4.2
-
10.4
t10
Clock high to Data valid (READ cycle)
-
-
11
pCLK
pCS_L
pA[14:0
]
pD[7:0]
pRdy
pRW_L
pOE_L
Address
pWE_L
Data
t10
t11
t12
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XRT79L72IB 制造商:EXAR 制造商全稱:EXAR 功能描述:2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
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