DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 17
DS21458LDK
Manufacturer Part Number
DS21458LDK
Description
Network Controller & Processor ICs
Manufacturer
Maxim Integrated
Datasheet
1.DS21458LDK.pdf
(269 pages)
- Current page: 17 of 269
- Download datasheet (2Mb)
4. DS21455/DS21458 DELTA
This section describes the differences between the DS21455 and DS21458.
4.1 Package
DS21455: 27mm, 256-pin, 1.27 ball pitch, BGA (This package has the same footprint and pinout as the
DS21Q55.)
DS21458: 17mm, 256-pin, 1.00 ball pitch, CSBGA
4.2 Controller Interface
DS21455: The CPU interface has 8 address lines with independent chip selects (4) per transceiver.
DS21458: The CPU interface has 10 address lines with a single chip select. The upper address lines, A8
and A9, act as coded transceiver selects.
4.3 ESIB Function
The ESIB function provides a fast method of determining interrupt and alarm status when multiple ports
(up to 8) are being controlled by a single processor.
DS21455: The three ESIB signals are brought out for each transceiver. The user must externally
configure the ESIB group.
DS21458: The ESIB signals are internally bused and only a single set of signals are brought out to enable
the connection of another DS21458 into an 8-port ESIB.
4.4 Framer/LIU Interim Signals
Access to the clock and bipolar data signals between the framer and LIU function may be used for
specialized applications. An internal MUX connects the framer and LIU if these signals are unused. The
MUX is controlled via the LIUC/TPD pin and LIUC bit in the LBCR register. The unused inputs must be
connected to ground.
DS21455: The user has access to all clock and data signals between the framer and LIU on all
transceivers as shown in
DS21458: The user has limited access to clock and data signals between the framer and LIU on all
transceivers as shown in
Figure
Figure
4-1.
4-2.
17 of 269
DS21455/DS21458 Quad T1/E1/J1 Transceivers
Related parts for DS21458LDK
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC LIU QUAD T1/E1/J1 256-CSBGA
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Network Controller & Processor ICs
Manufacturer:
Maxim Integrated
Datasheet:
Part Number:
Description:
power light source Luxeon Line
Manufacturer:
LUMILEDS [Lumileds Lighting Company]
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products