MC145423EJR2 Freescale, MC145423EJR2 Datasheet

no-image

MC145423EJR2

Manufacturer Part Number
MC145423EJR2
Description
Manufacturer
Freescale
Datasheet

Specifications of MC145423EJR2

Number Of Transmitters
1
Number Of Receivers
1
Power Supply Requirement
Single
Package Type
TSSOP
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
28
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Lead Free Status / RoHS Status
Compliant
MC145423
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
4
DC Supply Voltage
Voltage, Any Pin to V SS
DC Current, Any Pin (Excluding
V DD , V SS )
Operating Temperature
Storage Temperature
DC Supply Voltage
Power Dissipation (PD = V DD )
Power Dissipation (PD = V SS )
Frame Rate
CCI CLK Frequency (MSI = 8 kHz)
Frame Rate Slip*
Data Clock Rate (Master Mode)
SDCLK (UDLT-2 Only)
Modulation Baud Rate
* The slave’s crystal frequency divided by 512 (UDLT-1) or 1024 (UDLT-2), must equal the master’s MSI frequency ±0.25% for optimum
operation.
UDLT-1 (CCI = 256 x MSI)
UDLT-2
UDLT-1
UDLT-2
UDLT-1
UDLT-2
Rating
Parameter
Freescale Semiconductor, Inc.
V DD – V SS
Symbol
For More Information On This Product,
T stg
T A
V
I
V DD = 5 V
V DD = 5 V
(Voltage Referenced to V SS )
Go to: www.freescale.com
TELECOMMUNICATIONS
–0.5 to V DD + 0.5
–85 to 150
–40 to 85
–0.5 to 6
Value
±10
(T A = –40° to 85°C)
TDC-RDC
LO1, LO2
Pins
V DD
V DD
V DD
MSI
CCI
Unit
mA
°C
°C
V
V
MOTOROLA
Semiconductor Products Sector
Product Preview
Universal Digital Loop
Transceiver (UDLT-3)
Pin Selectable Master/Slave
Limited Distance Modem
of the major building blocks in digital subscriber voice/da
telephone systems and remote data acquisition and contro
the MC145421 (ISDN UDLT-2 master), MC145425 (ISDN
slave), MC145422 (UDLT-1 master), and MC145426 (UD
slave).
can be used in telephone switch line cards, as well as rem
telsets or data terminals.
UDLT-2 Features
UDLT-1 Features
This document contains information on a product under development. Motorola
reserves the right to change or discontinue this product without notice.
© Motorola, Inc., 2000. All rights reserved.
Min
128
4.5
7.9
64
16
The MC145423 is a CMOS integrated circuit designed
The UDLT-3 incorporates into one device, all the funct
Since these modes/functions are pin selectable, the MC
V DD = 4.5 V to 5.5 V
28-Pin SOIC and TSSOP Packages
Protocol Independent
Pin Controlled Power-Down
LI Sensitivity Control in Master Mode
2.048 MHz Output in Slave Mode
Synchronous Full Duplex 160 kbps Voice and Data
Communications in a 2B+2D Format for ISDN Compa
Provides CCITT Basic Access Data Transfer Rate (2B+
ISDNs on a Single Twisted Pair Up to 1 km on 26 AW
Larger Cable
Pin Controlled Loopback
Automatic Power-Up/Down (Slave)
Full Duplex Synchronous 64 kbps Voice/Data Channel
8 kbps Signaling Data Channels Over One 26 AWG Wi
to 2 km
the inputs against damage due to high static
voltages or electric fields; however, it is
advised that normal precautions be taken
to avoid applications of any voltage higher
than maximum rated voltages to this high-
impedance circuit. For proper operation, it
is recommended that V in and V out be
constrained to the range V SS
if unused inputs are tied to an appropriate
logic level (e.g., either V SS or V DD ).
V DD . Reliability of operation is enhanced
This device contains circuitry to protect
2.048
8.192
Typ
8.0
4100
4100
4100
Max
8.29
0.25
256
512
5.5
8.1
80
80
(V in or V out )
MHz
Unit
mW
mW
kHz
kHz
kHz
kHz
%
V

Related parts for MC145423EJR2

MC145423EJR2 Summary of contents

Page 1

... Signaling Data Channels Over One 26 AWG This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice. © Motorola, Inc., 2000. All rights reserved. TELECOMMUNICATIONS Go to: www.freescale.com This device contains circuitry to protect ( out ) Reliability of operation is enhanced Typ Max Unit — ...

Page 2

... SDO1 10 19 CCI/XTAL in SDO2 11 18 MSI/TONE SE/(Mu/ EN1-TE1 EN2-TE2/SIE/B1B2 28-PIN SOIC/TSSOP PACKAGES MOD TRI/SQ FRAME 10/20 TELECOMMUNICATIONS Go to: www.freescale.com LO1 B1 B2 LO2 CCI/XTAL In OSC (TDC-RDC)/ XTAL out MSI/TONE SEQUENCE AND CONTROL MASTER/ SLAVE LI SENS/ 2.048 MHz VD VD CONTROL LI V ref BLOCK D ...

Page 3

... ANALOG CHARACTERISTICS Modulation Differential Amplitude (RL = 440 ) Modulation Differential Offset V ref Voltage, Typically 9/ – PCM Tone Level Demodulator Input Amplitude* Demodulator Input Impedance ( ref ) * The input level into the demodulator to reliably demodulate incoming TELECOMMUNICATIONS Go to: www.freescale.com ( ±10 – Parameter ( ±10 Parameter TELECOMMU ...

Page 4

... EN1, TE1 Rising Edge to VD Valid SE PIN TIMING LB, PD Hold (LB, PD Valid After SE Falling Edge) SDO1, SDO2, VD High Impedance After SE Falling Edge SDO1, SDO2, VD Valid After SE Rising Edge LB, PD Setup (LB, PD Valid Before SE Rising Edge) TELECOMMUNICATIONS Go to: www.freescale.com Min Max Unit Parameter — — ...

Page 5

... Freescale Semiconductor, Inc. MC145423 For More Information On This Product, 12 Figure 5. UDLT-2 Master Timing TELECOMMUNICATIONS Go to: www.freescale.com Figure 2. UDLT-1 Slave TELECOMMU ...

Page 6

... Freescale Semiconductor, Inc. MC145423 For More Information On This Product, 10 Figure 3. UDLT-2 Slave Timing TELECOMMUNICATIONS Go to: www.freescale.com Figure 4. UDLT-1 TELECOMMU ...

Page 7

... State Latched kbps 64 kbps 64 kbps Data Out Data Out Data Out SIE Digital In SIE Digital In TELECOMMUNICATIONS Go to: www.freescale.com SE TONE = 1, On Valid No Valid Valid Burst Rec’d Burst Rec’d LB, PD BCLK = BCLK = BCLK = 128 kHz 128 kHz 128 kHz Don’t Care Don’ ...

Page 8

... MHz Out 17 20 RE1 (BCLK) CLK LO2 22 23 LO1 23 20 Logic TELECOMMUNICATIONS Go to: www.freescale.com UDLT-1 Slave Mode MC145423 Powered-Up UDLT-2 Master UDLT-2 Slave Pin MC145421 MC145425 Name In/out Normal Pin Pin Pin V SS Power Power Supply Name No. Name Gnd ref Analog AGND ...

Page 9

... Slave Mode (UDLT-2): These inputs are the 16 kbps serial data inputs in UDLT-2 mode. The D 8 FRAME channel data bits are clocked in serially on the 10/20 negative edge of the 16 kbps SDCLK output pin. 9 SDCLK TELECOMMUNICATIONS Go to: www.freescale.com UDLT-1 Ma MC145423 Pin Name In/out Normal Input TE1 8 kHz Input ...

Page 10

... Out high impedance when TE1 and TE2 are both low, simultaneous Tx is undefined when TE1 and TE2 are both high, simultaneously. TELECOMMUNICATIONS Go to: www.freescale.com UDLT-2 Slave Mode MC145423 Powered-Down Pin TONE = 1, On Name In/out Normal Valid No Valid Valid V SS Power Power Supply Burst Rec’ ...

Page 11

... MSI frame reference clock. The rising edge of MSI produces the first bit of each D channel on its respective pin. Circuitry then searches for a negative D channel clock edge. This TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU ...

Page 12

... XTAL in and XTAL out are required to ensure description for more information. EN1 serves as the stability and start-up. XTAL in may also be driven with slave device’s 8 kHz frame reference signal. The VD an external 8.192 MHz signal if a crystal is not TELECOMMUNICATIONS Go to: www.freescale.com TELECOMMU ...

Page 13

... VIEW A e VIEW 28X 0.2 A SEATING PLANE GAGE PLANE A1 A2 0.25 L VIEW A TELECOMMUNICATIONS Go to: www.freescale.com (b) SECTION A-A NOTES: 1. DIMENSIONS AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS IN MILLIMETERS. 3. DIMENSION D DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE MOLD PROTRUSION IS 0.15 PER SIDE. 4. DIMENSION E1 DOES NOT INCLUDE INTERLEAD FLASH OR MOLD PROTRUSION ...

Page 14

... RE1/CLKOUT SDI2 MODE EN1-TE1 (I/O) SDO1 EN2-TE2(I/O)/SIE SDO2 SE/(Mu/A) SDCLK MASTER/SLAVE RE2/BCLK LI SENS/2.048 MHz MOD SELECT FRAME 10/ TELECOMMUNICATIONS Go to: www.freescale.com PACKAGE kHz FRAME SYNC TRANSMIT DATA BUS BACK- RECEIVE DATA BUS PLANE 2.048 MHz DATA CLOCK PIN 1 IDENT e B 0.025 ...

Page 15

... JAPAN: Motorola Japan Ltd.; SPS, Technical Information Center, 3-20-1 Minami-Azabu. Minato-ku, Tokyo 106-8573 Japan. 81-3-3440-3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tao Po, N.T., Hong Kong. 852-26668334 TECHNICAL INFORMATION CENTER: 1-800-521-6274 HOME PAGE: http://motorola.com/semiconductors/ For More Information On This Product, Go to: www.freescale.com MC145423 are registered MC145423/D ...

Related keywords