SC16C2552B_3 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 03 — 12 February 2009 35 of 38
NXP Semiconductors
SC16C2552B
5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 16-byte FIFOs
14. Revision history
Table 29. Revision history
Document ID Release date Data sheet status Change notice Supersedes
SC16C2552B_3 20090212 Product data sheet - SC16C2552B-02
Modifications:
• 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”:
– added (new) 5
th
bullet item
– added
Footnote 1
• Figure 1: changed signal names from “MFA, MFB” to “MFA, MFB”
• Section 7.3.1 “DMA mode”:
– 1
st
paragraph, last sentence: changed from “MF register” to “AFR[2:1]”
– 2
nd
paragraph, last sentence: changed from “MF register” to “AFR[2:1]”
• Table 18 “Modem Status Register bits description”:
– description of bit 7: changed from “(
OPA/OPB)” to “(OP2A/OP2B)”
– description of bit 6: changed from “(
OP1)” to “(OP1A/OP2A)”
• Table 23 “Limiting values”:
– symbol V
n
split to show 2 separate conditions: “at D7 to D0 pins” and “at input only pins”
– changed symbol “P
tot(pack)
” to “P
tot
/pack”
• Table 24 “Static characteristics”:
– descriptive line below table title changed from “V
CC
= 2.5 V, 3.3 V or 5.0 V ± 10 %” to
“tolerance of V
CC
± 10 %”
– changed symbol/parameter from “V
IL(CK)
, LOW-level clock input voltage” to “V
IL(clk)
, clock
LOW-level input voltage”
– changed symbol/parameter from “V
IH(CK)
, HIGH-level clock input voltage” to “V
IH(clk)
, clock
HIGH-level input voltage”
– changed symbol/parameter from “I
CL
, clock leakage” to “I
L(clk)
, clock leakage current”
–
Table note [1]: changed from “Except x
2
” to “Except XTAL2”
• Table 25 “Dynamic characteristics”:
– descriptive line below table title changed from “V
CC
= 2.5 V, 3.3 V or 5.0 V ± 10 %” to
“tolerance of V
CC
± 10 %”
– changed symbol “t
1w
, t
2w
” to 2 separate symbols “t
WH
” and “t
WL
”
– changed symbol/parameter “t
3w
, clock frequency” to “f
XTAL1
, frequency on pin XTAL1”
– added
Table note [2]
– symbols t
20d
, t
23d
, t
25d
and t
28d
: Unit changed from “R
clk
” to “s” (second)
– symbols t
20d
, t
23d
, t
25d
and t
28d
: appended “T
RCLK
” to Min and Max values
– added
Table note [3]
– symbol N: removed “R
clk
” from Unit column (N is a number)
– added
Table note [4] and its reference at t
RESET
