SC28L92A1B NXP Semiconductors, SC28L92A1B Datasheet - Page 34

• Manufacturer Part Number: SC28L92A1B
• Description: UART Interface IC UART DUAL W/FIFO
• Manufacturer: NXP Semiconductors
• Type: Dual UARTr

Specifications of SC28L92A1B

• Number Of Channels: 2
• Data Rate: 230.4 Kbps
• Supply Voltage (max): 5 V
• Supply Voltage (min): 3.3 V
• Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: PQFP-44
• Description/function: Single-chip CMOS-LSI communications device
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V, 5 V
• Lead Free Status / Rohs Status: Details
• Other names: SC28L92A1B,557

NXP Semiconductors
SC28L92_7
Product data sheet
7.3.2.2 Clock Select Register channel B (CSRB)
Table 36.
Crystal or clock = 3.6864 MHz.
[1]
Table 37.
Normal rate (baud)
50
75
110
134.5
150
200
300
600
1050
1200
1800
2000
2400
4800
7200
9600
19200
38400
Bit
7 to 4
3 to 0
Duty cycle of 16 clock is 50 %
Symbol
-
-
Bit rate generator characteristics
CSRB - Clock select register channel B (address 0x9) bit description
Description
Receiver clock select. The baud rate clock for the channel B receiver is as
shown in
The receiver clock is always a 16 clock except for CSRB[7:4] = 1111
Transmitter clock select. The baud rate clock for the channel A transmitter is
as shown in
The transmitter clock is always a 16 clock except for CSRB[3:0] = 1111
Rev. 07 — 19 December 2007
1110 = IP6 - 16
1111 = IP6 - 1
1110 = IP5 - 16
1111 = IP5 - 1
3.3 V/5.0 V Dual Universal Asynchronous Receiver/Transmitter
Table
Actual 16 clock (kHz)
0.8
1.2
1.759
2.153
2.4
3.2
4.8
9.6
16.756
19.2
28.8
32.056
38.4
76.8
115.2
153.6
307.2
614.4
1 %.
Table
35, except as follows:
35, except as follows:
[1]
Error (%)
0
0
0.059
0
0
0
0
0
0
0.175
0
0
0
0
0
0
0.069
0.260
SC28L92
© NXP B.V. 2007. All rights reserved.
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