IDT77155 Datasheet, PDF (49/50 Pages) Integrated Device Technology – PHY (TC-PMD) USER NETWORK INTERFACE FOR 155 MBPS ATM NETWORK APPLICATIONS

IIDT77155
155Mbps ATM PHY (TC-PMD) USER NETWORK INTERFACE
ADVANCED INFORMATION
Commercial Temperature Range
tALSU
tLW
tALHD
A[7:0]
X
Valid Address
X
ALE
/
D[7:0]
tLWSU
tAWSU
X
tWW
tAWHD
tLWHD
tDWSU
tDWHD
Valid Data
X
Figure 18. Microprocessor Write Timing
3497 drw 21
SYMBOL
tALHD
tALSU
tAWHD
tAWSU
tDWHD
tDWSU
tLW
tLWHD
tLWSU
tWW
DISCRIPTION
Address to latch enable hold time
Address to latch enable setup time
Address to write hold time
Address to write setup time
Data to write hold time
Data to write setup time
Latch enable pulse width
Latch enable to write hold time
Latch enable to write setup time
Write pulse width
MIN.
10
20
5
25
1
5
20
5
5
40
MAX. UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SYMBOL
DISCRIPTION
tBB
Time between consecutive operations
MIN. MAX. UNITS
150
ns
8.03
49