The SC16C550B is a Universal Asynchronous Receiver and Transmitter (UART) used for serial data communications. Its principal function is to convert parallel data into serial data, and vice versa. The UART can handle serial data rates up to 3 Mbit/s.
The SC16C550B is pin compatible with the ST16C550, TL16C550 and PC16C550, and it will power-up to be functionally equivalent to the 16C450. The SC16C550B also provides DMA mode data transfers through FIFO trigger levels and the TXRDY and RXRDY signals (TXRDY and RXRDY are not supported in the HVQFN32 package). On-board status registers provide the user with error indications, operational status, and modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows on-board diagnostics.
The SC16C550B operates at 5 V, 3.3 V and 2.5 V, and the Industrial temperature range, and is available in plastic HVQFN32, DIP40, PLCC44 and LQFP48 packages.
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| SC16C550BIA44 | SC16C550BIA44 | 9352 743 87512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | SC16C550BIA44
| week 51, 2004 |
| SC16C550BIA44 | SC16C550BIA44-T | 9352 743 87518 | Volume production | SOT187-2
(PLCC44) | Reel Dry Pack, SMD, 13" | Standard Marking | SC16C550BIA44
| week 51, 2004 |
| SC16C550BIA44 | SC16C550BIA44-S | 9352 743 87529 | Volume production | SOT187-2
(PLCC44) | SC16C550BIA44
| week 51, 2004 | ||
| SC16C550BIB48 | SC16C550BIB48-F | 9352 743 88128 | Volume production | SOT313-2
(LQFP48) | Reel Pack, SMD, 13", Turned | Standard Marking | SC16C550BIB48
| Always Pb-free |
| SC16C550BIB48 | SC16C550BIB48 | 9352 743 88157 | Volume production | SOT313-2
(LQFP48) | Tray Pack, Bakeable, Multiple | Standard Marking | SC16C550BIB48
| Always Pb-free |
| SC16C550BIB48 | SC16C550BIB48-S | 9352 743 88151 | Volume production | SOT313-2
(LQFP48) | Tray Pack, Bakeable, Single | Standard Marking | SC16C550BIB48
| Always Pb-free |
| SC16C550BIBS | SC16C550BIBS-F | 9352 794 97128 | Volume production | SOT617-1
(HVQFN32) | Reel Pack, SMD, 13", Turned | Standard Marking | SC16C550BIBS
| Always Pb-free |
| SC16C550BIBS | SC16C550BIBS-S | 9352 794 97151 | Volume production | SOT617-1
(HVQFN32) | Tray Pack, Bakeable, Single | Standard Marking | SC16C550BIBS
| Always Pb-free |
| SC16C550BIBS | SC16C550BIBS | 9352 794 97157 | Volume production | SOT617-1
(HVQFN32) | Tray Pack, Bakeable, Multiple | Standard Marking | SC16C550BIBS
| Always Pb-free |
| SC16C550BIN40 | SC16C550BIN40 | 9352 743 86112 | Volume production | SOT129-1
(DIP40) | Tube | Standard Marking | SC16C550BIN40
| Always Pb-free |
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| SC16C550BIA44 | 9352 743 87512 | 1.5700 | NA | AVNET ELECTRONICS MARKETING | 1,255 | 1/7/2009 | Buy online | not available | |
| EU | FARNELL | 165 | 1/7/2009 | Buy online | |||||
| NA | NEWARK | 165 | 1/7/2009 | Buy online | |||||
| SC16C550BIA44 | 9352 743 87518 | 1.5700 | ASIA | WPI | 1 | 1 | 01/07/2009 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 500 | 1/6/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 873 | 1/6/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 314 | 1/7/2009 | Buy online | |||||
| SC16C550BIA44 | 9352 743 87529 | 1.5700 | NA | FUTURE ELECTRONICS | 326 | 1/7/2009 | Buy online | not available | |
| SC16C550BIB48 | 9352 743 88128 | 1.6000 | ASIA | WPI | 20,000 | 2000 | 01/07/2009 | Buy online | Order samples |
| NA | MOUSER ELECTRONICS | 25 | 1/7/2009 | Buy online | |||||
| SC16C550BIB48 | 9352 743 88157 | 1.7100 | NA | AVNET ELECTRONICS MARKETING | 1,235 | 1/7/2009 | Buy online | not available | |
| EU | FARNELL | 8 | 1/7/2009 | Buy online | |||||
| NA | NEWARK | 8 | 1/7/2009 | Buy online | |||||
| SC16C550BIB48 | 9352 743 88151 | 1.7800 | NA | AVNET ELECTRONICS MARKETING | 250 | 1/7/2009 | Buy online | not available | |
| NA | DIGI-KEY CORPORATION | 219 | 1/6/2009 | Buy online | |||||
| SC16C550BIBS | 9352 794 97128 | 1.5700 | not available | ||||||
| SC16C550BIBS | 9352 794 97151 | 1.5700 | NA | AVNET ELECTRONICS MARKETING | 275 | 1/7/2009 | Buy online | Order samples | |
| SC16C550BIBS | 9352 794 97157 | 1.5700 | NA | AVNET ELECTRONICS MARKETING | 2,025 | 1/7/2009 | Buy online | not available | |
| SC16C550BIN40 | 9352 743 86112 | 1.6700 | EU | FARNELL | 184 | 1/7/2009 | Buy online | Order samples | |
| NA | MOUSER ELECTRONICS | 299 | 1/7/2009 | Buy online | |||||
| NA | NEWARK | 297 | 1/7/2009 | Buy online | |||||
| ASIA | WPI | 1,944 | 216 | 01/07/2009 | Buy online |
Related applications
Cellular phone - MMS functionality
LCD TV - MMS functionality
Set-top box - MMS functionality
Application Notes
Support Documents
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