DS21554L Maxim Integrated Products, DS21554L Datasheet - Page 21

• Manufacturer Part Number: DS21554L
• Description: IC TXRX E1 1-CHIP 5V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21554L

• Function: Single-Chip Transceiver
• Interface: E1, HDLC, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: Remote and AIS Alarm Detector / Generator
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

Signal Name:
Signal Description:
Signal Type:
In Intel Mode, RD determines when data is read from the device. In Motorola Mode, DS is used to write
to the device. See the Bus Timing Diagrams section.
Signal Name:
Signal Description:
Signal Type:
Must be low to read or write to the device. CS is an active-low signal.
Signal Name:
Signal Description:
Signal Type:
In nonmultiplexed bus operation (MUX = 0), serves as the upper address bit. In multiplexed bus
operation (MUX = 1), serves to demultiplex the bus on a positive-going edge.
Signal Name:
Signal Description:
Signal Type:
WR is an active-low signal.
RD (DS)
Read Input—Data Strobe
Input
CS
Chip Select
Input
ALE (AS)/A7
Address Latch Enable (Address Strobe) or A7
Input
WR (R/W)
Write Input (Read/Write)
Input
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