⚠ All product names, trademarks, brands, and logos on this site are the property of their respective owners. Their use is for identification purposes only and does not imply any affiliation or authorization from the rights holders. We are not authorized dealers or distributors of the brand. The warranty is provided by us, not the original manufacturer.
DS21455
DS21455 - Brand New Maxim Integrated IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GENERAL DESCRIPTION
The DS21455 and DS21458 are quad monolithic devices featuring independent transceivers that can be software configured for T1, E1, or J1 operation. Each is composed of a line interface unit (LIU), framer, HDLC controllers, and a TDM backplane interface, and is controlled via an 8-bit parallel port configured for Intel or Motorola bus operations. The DS21455* is a direct replacement for the older DS21Q55 quad MCM device. The DS21458, in a smaller package (17mm CSBGA) and featuring an improved controller interface, is software compatible with the older DS21Q55.
FEATURES
Four Independent Transceivers, Each Having the Following Features:
■ Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality
■ Complete E1 (CEPT) PCM-30/ISDNPRI Transceiver Functionality
■ Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping
■ CMI Coder/Decoder
■ Crystal-Less Jitter Attenuator
■ Fully Independent Transmit and Receive Functionality
■ Dual HDLC Controllers
■ On-Chip Programmable BERT Generator and Detector
■ Internal Software-Selectable Receiveand Transmit-Side Termination Resistors
for 75Ω/100Ω/120Ω T1 and E1 Interfaces
■ Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous
Backplanes Up to 16.384MHz
■ 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to
Recovered Network Clock
■ Programmable Output Clocks for Fractional T1, E1, H0, and H12 Applications
■ Interleaving PCM Bus Operation
■ 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or
Motorola
■ IEEE 1149.1 JTAG-Boundary Scan
■ 3.3V Supply with 5V Tolerant Inputs and Outputs
■ DS21455 Directly Replaces DS21Q55
■ Signaling System 7 (SS7) Support
■ RAI-CI, AIS-CI Support
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
电子元器件与工控产品的真实买家评价
In Stock 19-22/R6G6C-A01/2T
19-22/R6G6C-A01/2T - Brand New EVERLIGHT IC Chips
In Stock 216T9NGBGA13FH
216T9NGBGA13FH - Brand New ATI IC Chips
In Stock 26.000000MHZ
26.000000MHZ - Brand New TXC IC Chips
In Stock 2N3819
2N3819 - Brand New NTE Electronics IC Chips
In Stock 2SA1460
2SA1460 - Brand New NEC IC Chips
In Stock 2SC1945
2SC1945 - Brand New MITSUBISHI IC Chips
In Stock 2SC3733-K
2SC3733-K - Brand New NEC IC Chips
In Stock 2SJ179
2SJ179 - Brand New STMicroelectronics IC Chips
In Stock 2SK170-BL
2SK170-BL - Brand New TOSHIBA IC Chips
In Stock 2SK2647-01MR
2SK2647-01MR - Brand New FUJITSU IC Chips
