SC16C550B Datasheet, PDF (46/48 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V UART with 16-byte FIFOs

NXP Semiconductors
SC16C550B
5 V, 3.3 V and 2.5 V UART with 16-byte FIFOs
15. Revision history
Table 31. Revision history
Document ID
Release date
Data sheet status
Change notice Supersedes
SC16C550B_5
Modifications:
20081001
Product data sheet
-
SC16C550B_4
• changed all occurrences of “V_CC” to “V_DD”
• Section 2 “Features”: added new 7^th bullet (and footnote)
• Table 2 “Pin description”: Description for signal DDIS changed from “DDIS is active (LOW) when
the CPU is not reading data. When active, DDIS can disable an external transceiver.” to “DDIS is
active (LOW) when the CPU is reading data. When inactive (HIGH), DDIS can disable an
external transceiver.”
• Figure 6 “Autoflow control (auto-RTS and auto-CTS) example”:
– changed “ACE1” to “UART 1”; changed “ACE2” to “UART 2”
– changed “RCVR” to “RX”
– changed “XMIT” to “TX”
• Section 7 “Register descriptions”, first paragraph: changed from “... for the fifteen SC16C550B
internal registers.” to “... for the twelve SC16C550B internal registers.”
• Table 9 “SC16C550B internal registers”: changed MCR bit 3 from “OUT2, INT enable” to “OUT2”
• Table 19 “Modem Control Register bits description”:
– description of MCR[3] re-written (removed reference to INT enable)
– description of MCR[4]: changed “TX” to “TX” and changed “RX” to “RX”
• Table 24 “Limiting values”:
– symbol V_n split to show 2 separate conditions: “at D7 to D0 pins” and “at input only pins”
• Table 25 “Static characteristics”: deleted (old) Table note [2] and its reference at R_pu(int)
• Table 26 “Dynamic characteristics”: added Table note [4] and its reference at t_RESET
• updated soldering information
SC16C550B_4
20070316
Product data sheet
-
SC16C550B_3
SC16C550B_3
20050620
Product data sheet
-
(9397 750 14986)
SC16C550B-02
SC16C550B-02
20041214
Product data
-
(9397 750 14446)
SC16C550B-01
SC16C550B-01
20040326
Product data
-
(9397 750 11967)
SC16C550B_5
Product data sheet
Rev. 05 — 1 October 2008
© NXP B.V. 2008. All rights reserved.
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