DS26521LN+ Maxim Integrated Products, DS26521LN+ Datasheet - Page 237

• Manufacturer Part Number: DS26521LN+
• Description: IC TXRX T1/E1/J1 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS26521LN+

• Number Of Drivers/receivers: 1/1
• Protocol: T1/E1/J1
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.
Unless otherwise noted, all timing numbers assume 20pF test load on output signals, 40pF test load on bus
signals.
12.1
12.1.1 Parallel Port Mode
Table 12-1. AC Characteristics—Microprocessor Bus Timing
(V
Figure
Setup Time for A12, A[8:0] Valid to CSBn
Active
Setup Time for CSB Active to Either RDB ,
or WRB Active
Delay Time from Either RDB or DSB
Active to D[7:0] Valid
Hold Time from Either RDB or WRB
Inactive to CSB Inactive
Hold Time from CSB or RDB or DSB
Inactive to D[7:0] Tri-State
Wait Time from WRB Active to Latch Data
Data Setup Time to WRB Inactive
Data Hold Time from WRB Inactive
Address Hold from WRB Inactive
Write Access to Subsequent Write/Read
Access Delay Time
Note 1:
Note 2:
DD
= 3.3V ±5%, T
12-4.)
AC TIMING CHARACTERISTICS
Microprocessor Bus AC Characteristics
The timing parameters in this table are guaranteed by design (GBD).
If supplying a 1.544MHz MCLK, the FREQSEL bit must be set to meet this timing.
PARAMETER
A
= -40°C to +85°C.) (Note 1) (See
SYMBOL
t10
t1
t2
t3
t4
t5
t7
t8
t9
t6
237 of 258
(Note 2)
(Note 2)
Figure
CONDITIONS
12-1,
Figure
DS26521 Single T1/E1/J1 Transceiver
MIN
12-2,
40
10
80
0
0
0
5
0
Figure
TYP
12-3, and
MAX
125
20
5
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns