DS3148 Maxim Integrated Products, DS3148 Datasheet - Page 78

• Manufacturer Part Number: DS3148
• Description: IC 8CH DS3/3 FRAMER 349-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS3148

• Controller Type: DS3/E3 Framer
• Interface: LIU
• Voltage - Supply: 3.135 V ~ 3.465 V
• Current - Supply: 640mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 349-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

11.2 Microprocessor Interface Timing
Table 11-D. Microprocessor Interface Timing
(V
Note 16: In nonmultiplexed bus applications
Note 17: Whenever CS = 0 and RD = 0 in Intel mode or CS = 0 and R/WR = 1 and DS = 0 in Motorola mode, the bidirectional data bus D[7:0] is
Figure 11-4. SCLK Clock Timing
Setup Time for A[11:0] Valid to CS Active
Setup Time for CS Active to RD , WR , or DS
Active
Delay Time from RD or DS Active to D[7:0]
Valid
Hold Time from RD or WR or DS Inactive to
CS Inactive
Hold Time from CS or RD or DS Inactive to
D[7:0] Tri-State
Wait Time from WR or DS Active to Latch
D[7:0]
D[7:0] Setup Time to WR or DS Inactive
D[7:0] Hold Time from WR or DS Inactive
A[11:0] Hold from WR or RD or DS Inactive
RD , WR , or DS Inactive Time
Muxed Address Valid to ALE Falling
Muxed Address Hold Time
ALE Pulse Width
Setup Time for ALE High or Muxed
Address Valid to CS Active
SCLK Period
SCLK High and Low Time
SCLK Duty Cycle (High/Low)
DD
SCLK
= 3.3V ±5%, T
are normally connected to D[7:0] externally, and the falling edge of ALE latches the address.
driven as an output.
PARAMETER
A
= -40°C to +85°C.)
HIGH
t16
(Figure
t15
(Figure
11-5), ALE should be connected high. In multiplexed bus applications
LOW
t16
11-4,
SYMBOL
t16/t15
t10
t11
t12
t13
t14
t15
t16
t1
t2
t3
t4
t5
t6
t7
t8
t9
78 of 89
Figure
11-5, and
(Note 16)
(Note 16)
(Note 16)
(Note 16)
CONDITIONS
Figure
11-6)
MIN
5.0
2.0
5.0
7.0
65
10
75
10
10
30
19
40
0
0
0
0
TYP
(Figure
MAX
65
20
31
60
11-6), A[7:0]
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%