The SC26C92 is a pin and function replacement for the SCC2692 and SCN2681 with added features and deeper FIFOs. Its configuration on power up is that of the 2692. Its differences from the 2692 are: 8 character receiver, 8 character transmit FIFOs, watch dog timer for each receiver, mode register 0 is added, extended baud rate and overall faster speeds, programmable receiver and transmitter interrupts. (The SCC2692 is not being discontinued.)
The Philips Semiconductors SC26C92 Dual Universal Asynchronous Receiver/Transmitter (DUART) is a single-chip CMOS-LSI communications device that provides two full-duplex asynchronous receiver/transmitter channels in a single package. It interfaces directly with microprocessors and may be used in a polled or interrupt driven system and provides modem and DMA interface.
The operating mode and data format of each channel can be programmed independently. Additionally, each receiver and transmitter can select its operating speed as one of 27 fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs. The ability to independently program the operating speed of the receiver and transmitter make the DUART particularly attractive for dual-speed channel applications such as clustered terminal systems.
Each receiver and transmitter is buffered by eight character FIFOs to minimize the potential of receiver overrun, transmitter underrun and to reduce interrupt overhead in interrupt driven systems. In addition, a flow control capability is provided via RTS/CTS signaling to disable a remote transmitter when the receiver buffer is full.
Also provided on the SC26C92 are a multipurpose 7-bit input port and a multipurpose 8-bit output port. These can be used as general purpose I/O ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs) under program control.
The SC26C92 is available in three package versions: 40-pin 0.6" wide DIP, a 44-pin PLCC and 44-pin plastic quad flat pack (PQFP).
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| SC26C92A1A | SC26C92A1A | 9351 939 90512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | SC26C92A1A
| week 12, 2005 |
| SC26C92A1A | SC26C92A1A-T | 9351 939 90518 | Volume production | SOT187-2
(PLCC44) | Reel Dry Pack, SMD, 13" | Standard Marking | SC26C92A1A
| week 12, 2005 |
| SC26C92A1A | SC26C92A1A-S | 9351 939 90529 | Volume production | SOT187-2
(PLCC44) | SC26C92A1A
| week 12, 2005 | ||
| SC26C92A1B | SC26C92A1B-F | 9352 630 28528 | Volume production | SOT307-2
(QFP44) | Reel Dry Pack, SMD, 13",Turned | Standard Marking | SC26C92A1B
| week 13, 2005 |
| SC26C92A1B | SC26C92A1B-S | 9352 630 28551 | Volume production | SOT307-2
(QFP44) | Tray Dry Pack, Bakeable, Single | Standard Marking | SC26C92A1B
| week 13, 2005 |
| SC26C92A1B | SC26C92A1B | 9352 630 28557 | Volume production | SOT307-2
(QFP44) | Tray Dry Pack, Bakeable, Multiple | Standard Marking | SC26C92A1B
| week 13, 2005 |
| SC26C92A1N | SC26C92A1N | 9352 148 90112 | Volume production | SOT129-1
(DIP40) | Tube | Standard Marking | SC26C92A1N
| Always Pb-free |
| SC26C92A1N | 9352 148 90129 | Volume production | SOT129-1
(DIP40) | SC26C92A1N
| Always Pb-free | |||
| SC26C92C1A | SC26C92C1A | 9350 515 10512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | SC26C92C1A
| week 12, 2005 |
| SC26C92C1A | SC26C92C1A-T | 9350 515 10518 | Volume production | SOT187-2
(PLCC44) | Reel Dry Pack, SMD, 13" | Standard Marking | SC26C92C1A
| week 12, 2005 |
| SC26C92C1A | SC26C92C1A-S | 9350 515 10529 | Volume production | SOT187-2
(PLCC44) | SC26C92C1A
| week 12, 2005 | ||
| SC26C92C1B | SC26C92C1B-T | 9352 487 90528 | Volume production | SOT307-2
(QFP44) | Reel Dry Pack, SMD, 13",Turned | Standard Marking | SC26C92C1B
| week 13, 2005 |
| SC26C92C1B | SC26C92C1B-S | 9352 487 90551 | Volume production | SOT307-2
(QFP44) | Tray Dry Pack, Bakeable, Single | Standard Marking | SC26C92C1B
| week 13, 2005 |
| SC26C92C1B | SC26C92C1B | 9352 487 90557 | Volume production | SOT307-2
(QFP44) | Tray Dry Pack, Bakeable, Multiple | Standard Marking | SC26C92C1B
| week 13, 2005 |
| SC26C92C1N | SC26C92C1N | 9350 515 20602 | Volume production | SOT129-1
(DIP40) | Tube (Signetics) | Standard Marking | SC26C92C1N
| Always Pb-free |
| SC26C92C1N | 9350 515 20129 | Volume production | SOT129-1
(DIP40) | SC26C92C1N
| Always Pb-free |
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| SC26C92A1A | 9351 939 90512 | 6.9800 | NA | DIGI-KEY CORPORATION | 879 | 12/3/2008 | Buy online | Order samples |
| EU | FARNELL | 93 | 12/3/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 48 | 12/3/2008 | Buy online | ||||
| NA | NEWARK | 93 | 12/3/2008 | Buy online | ||||
| SC26C92A1A | 9351 939 90518 | 6.9800 | NA | MOUSER ELECTRONICS | 490 | 12/3/2008 | Buy online | not available |
| SC26C92A1A | 9351 939 90529 | 6.9800 | not available | |||||
| SC26C92A1B | 9352 630 28528 | 6.9800 | Order samples | |||||
| SC26C92A1B | 9352 630 28551 | 6.9800 | not available | |||||
| SC26C92A1B | 9352 630 28557 | 6.9800 | NA | FUTURE ELECTRONICS | 3,088 | 12/3/2008 | Buy online | not available |
| SC26C92A1N | 9352 148 90112 | 8.0000 | NA | ARROW ELECTRONICS | 77 | 12/3/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 10 | 12/3/2008 | Buy online | ||||
| SC26C92A1N | 9352 148 90129 | not available | ||||||
| SC26C92C1A | 9350 515 10512 | 6.3700 | NA | ARROW ELECTRONICS | 2,969 | 12/3/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 2,619 | 12/3/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 450 | 12/3/2008 | Buy online | ||||
| EU | FARNELL | 135 | 12/3/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 1,278 | 12/3/2008 | Buy online | ||||
| NA | NEWARK | 97 | 12/3/2008 | Buy online | ||||
| SC26C92C1A | 9350 515 10518 | 6.3700 | NA | AVNET ELECTRONICS MARKETING | 7,000 | 12/3/2008 | Buy online | Order samples |
| NA | FUTURE ELECTRONICS | 15,384 | 12/3/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 1,483 | 12/3/2008 | Buy online | ||||
| SC26C92C1A | 9350 515 10529 | 6.3700 | not available | |||||
| SC26C92C1B | 9352 487 90528 | 6.5000 | not available | |||||
| SC26C92C1B | 9352 487 90551 | 6.5000 | NA | MOUSER ELECTRONICS | 96 | 12/3/2008 | Buy online | Order samples |
| SC26C92C1B | 9352 487 90557 | 6.5000 | NA | ARROW ELECTRONICS | 428 | 12/3/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 423 | 12/3/2008 | Buy online | ||||
| SC26C92C1N | 9350 515 20602 | 7.7600 | NA | ARROW ELECTRONICS | 2 | 12/3/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 596 | 12/3/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 273 | 12/3/2008 | Buy online | ||||
| EU | FARNELL | 10 | 12/3/2008 | Buy online | ||||
| SC26C92C1N | 9350 515 20129 | Order samples |
Related applications
Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality
Application Notes
Support Documents
| Type number | Package | Application | FUNCTION | Operating temp.(Cel) | No. of Pins | Receiver/Transmitter Type |
|---|---|---|---|---|---|---|
| SC26C92A1A | SOT187-2
(PLCC44) | Data Communication | Receivers/Transmitters | -40~85 | 44 | Dual UARTs |
| SC26C92A1B | SOT307-2
(QFP44) | Data Communication | Receivers/Transmitters | -40~85 | 44 | Dual UARTs |
| SC26C92A1N | SOT129-1
(DIP40) | Data Communication | Receivers/Transmitters | -40~85 | 40 | Dual UARTs |
Similar products
SC26C92
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