TMPR28051

` Maps signals in one of the following ways:
- Maps up to 28 asynchronous DS1 signals to SONET STS-1 via VT Groups, or SDH AU-3 via TUG-2.
- Maps up to 21 asynchronous E1 signals to SDH AU-3 via TUG-2, or SONET STS-1 via VT Groups.
- Maps any valid combination of DS1/E1 signals at the VT Group/TUG-2 level.
` PLL-free receive operation using built-in digital jitter attenuators.
` High-speed microprocessor interface configurable to operate with most commercial microprocessors.
` Inserts valid B1, B2, and B3 bit interleaved parity (BIP) in the transmit direction.
` Detects and counts B1, B2, and B3 BIP-8 errors on either a bit or block basis for performance monitoring in the receive direction.
` Detects and counts V5 BIP-2 errors on either a bit or block basis for performance monitoring.
` Configurable continuous B1, B2, B3, and V5 BIP-2 error insertion.
` Configurable remote error indication (REI) insertion for B2, B3, and V5 BIP-2 errors.
` Detects and counts remote errors.
` Built-in test pattern insertion and drop for setup and maintenance.
` Configurable VT1.5/TU-11 slot selection for DS1 insertion and drop.
` Configurable VT2/TU-12 slot selection for E1 insertion and drop.
` Detects STS-1 path loss of pointer (LOP-P), loss of H4 multiframe (H4LOMF), path alarm indication signal (AIS-P), and path remote defect indication (RDI-P).
` Automatic receive monitor functions include VT/TU remote defect indication (RDI-V), VT/TU remote error indication (REI-V), BIP-2 errors, VT/TU AIS (AIS-V), and VT/TU loss of pointer (LOP-V).
` Automatic receive monitoring functions can be configured to provide an interrupt to the control system, or the device can be operated in a polled mode.
` User configurable for VT/TU label, AIS-V, RDI-V,REI-V, force BIP-2 errors, or unequipped tributary insertion.
` Typical 3.3 V operation with 5 V TTL tolerant I/O and boundary scan.
` 40 to +85 temperature range.
` 208-pin shrink quad flat pack (SQFP) package.
` Provides alarm and control features to easily implement the latest release of the following standards:GR253-CORE (12/97 with the exception of GR-253 section 6.2.1.1.8.C), G.707 (3/96),G.783 (1/94), G.823.393, T1.105-1995, T1.105.02-1995, T1.105.03-1994,T1.105.03A-1995, T1.105.07-1996,T1.105.09-1996, ETS300.147 (1/95),ETS300.417-1-1 (1/96).

Stresses in excess of the absolute maximum ratings can cause permanent or latent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this device specification. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Power Supply (dc Voltage) V_DD ..............0.5 to 4.6 V
Input Voltage V_I .....................................0.3 to 5.5 V
Output Voltage V_O ........................................... 3.63 V
Storage Temperature Tstg ......................65 to 125
Ambient Operating Temperature Range T_A...40 to 85

The Lucent Technologies Microelectronics Group TMPR28051 device is designed to map any valid combination of DS1 and E1 signals into a stream at a rate of 51.84 Mbits/s. This device provides all of the functions necessary to insert and drop any valid combination up to 28 asynchronous DS1 signals or 21 asynchronous E1 signals into an SPE.

On the STS-1 side, the device can be configured for either a serial bit stream or an 8-bit parallel bus. This allows the device to drive an OC-1 optical signal directly and also allows for modular growth in terminal or add/drop applications.

On the DS1/E1 side, the device is designed to interface with the Lucent T7698FL3/T7693 Quad Line Transceiver, or equivalent, using the internal digital jitter attenuator buffer for PLL-free operation. The TMPR28051 device contains built-in test pattern insertion and drop that allows end-to-end testing for initial setup or maintenance without the need for external test equipment. Built-in loopbacks at both the STS-1 and DS1/ E1 sides provide maximum flexibility for use in a number of SONET/SDH or DS1/E1 products including terminal multiplexers, add/drop multiplexers, and digital cross connects. A high-speed microprocessor interface and full user programmability for VT slot insertion and drop provide maximum flexibility for DS1/E1 I/O configuration.