English
Language : 

SC16C554B_10 Datasheet, PDF (55/58 Pages) NXP Semiconductors – 5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
NXP Semiconductors
SC16C554B/554DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
14. Revision history
Table 30. Revision history
Document ID
Release date
Data sheet status
Supersedes
SC16C554B_554DB v.4
Modifications:
20100608
Product data sheet
SC16C554B_554DB_3
• The format of this data sheet has been redesigned to comply with the new identity guidelines
of NXP Semiconductors.
• Legal texts have been adapted to the new company name where appropriate.
• Section 2 “Features and benefits”: 7th bullet item changed from “5 V tolerant inputs” to “5 V
tolerant on input pins only”; added Footnote 1.
• Figure 9 “Autoflow control (auto-RTS and auto-CTS) example” updated
• Table 24 “Limiting values”:
– parameter description for symbol Vn changed from “voltage at any pin” to “voltage on any
other pin”; added separate conditions for “at D7 to D0” and “at any input only pin”
– symbol for ‘total power dissipation per package” changed from “Ptot(pack)” to “Ptot/pack”
• Table 25 “Static characteristics”:
– symbol “VIL(CK)” changed to “VIL(clk)”
– symbol “VIH(CK)” changed to “VIH(clk)”
– parameter description for VOL: moved “on all outputs” to Conditions column
– symbol/parameter “ICL, clock leakage” changed to “IL(clk), clock leakage current”
– deleted (empty) Typ columns
• Table 26 “Dynamic characteristics”:
– symbol “t1w, t2w, clock pulse duration” is split to two symbols/parameters: “tWH, pulse
width HIGH” and “tWL, pulse width LOW”
– Table note [2]: fraction’s denominator changed from “t3w” to “tw(clk)”
– added Table note [4] and its reference at tRESET
• Figure 23 “External clock timing”:
– symbol changed from “t2w” to “tWL”
– symbol changed from “t1w” to “tWH”
– symbol changed from “t3w” to “tw(clk)”
• updated soldering information
SC16C554B_554DB_3 20050901
Product data sheet
SC16C554B_554DB_2
SC16C554B_554DB_2 20050613
(9397 750 14966)
Product data sheet
SC16C554B_554DB_1
SC16C554B_554DB_1 20050209
(9397 750 13133)
Product data sheet
-
SC16C554B_554DB
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 8 June 2010
© NXP B.V. 2010. All rights reserved.
55 of 58