SC28L91A1B,528 NXP Semiconductors, SC28L91A1B,528 Datasheet - Page 36
![IC UART SINGLE W/FIFO 44PQFP](/photos/6/62/66269/568-44-qfp_sot307-2_sml.jpg)
SC28L91A1B,528
Manufacturer Part Number
SC28L91A1B,528
Description
IC UART SINGLE W/FIFO 44PQFP
Manufacturer
NXP Semiconductors
Series
IMPACTr
Datasheet
1.SC28L91A1A529.pdf
(43 pages)
Specifications of SC28L91A1B,528
Features
False-start Bit Detection
Number Of Channels
1, UART
Fifo's
16 Byte
Voltage - Supply
3.3V, 5V
With Auto Flow Control
Yes
With False Start Bit Detection
Yes
With Modem Control
Yes
With Cmos
Yes
Mounting Type
Surface Mount
Package / Case
44-MQFP, 44-PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935267419528
SC28L91A1B-T
SC28L91A1B-T
SC28L91A1B-T
SC28L91A1B-T
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SC28L91A1B,528
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
SC28L91A1B,528
Manufacturer:
PHILIPS/飞利浦
Quantity:
20 000
Philips Semiconductors
2004 Oct 21
3.3 V or 5.0 V Universal Asynchronous
Receiver/Transmitter (UART)
NOTES:
1.
2.
INTRN or OP3-OP7 when used as interrupt outputs.
The test for open-drain outputs is intended to guarantee switching of the output transistor. Measurement of this response is referenced from the midpoint of the switching
signal, V
test environment are pronounced and can greatly affect the resultant measurement.
C1 = C2
C1 and C2 should be chosen according to the crystal manufacturer’s specification.
C1 and C2 values will include any parasitic capacitance of the wiring and X1 X2 pins.
Gain at 3.6864MHz: 9 to 13 dB
Package capacitance approximately 4pF.
X1/CLK
CTCLK
M
RxC
TxC
, to a point 0.5V above V
24pF FOR C
L
= 20pF
PARASITIC CAPACITANCE
PARASITIC CAPACITANCE
OL
INTERRUPT
INTERRUPT
. This point represents noise margin that assures true switching has occurred. Beyond this level, the effects of external circuitry and
t
t
t
t
CLK
CTC
Rx
Tx
OUTPUT
OUTPUT
3pF
3pF
C2
C1
WRN
RDN
1
1
Figure 10. Interrupt Timing (80xxx mode)
3.6864MHz
Figure 11. Clock Timing
t
t
t
t
CLK
CTC
Rx
Tx
X1
X2
V
M
36
4pF
2pF
t
IR
V
*NOTE: X2 MUST BE LEFT OPEN.
CLK
M
NOTE:
RESISTOR REQUIRED
FOR TTL INPUT.
SC28L91
50k
to
100k
t
IR
V
OL
V
OL
+0.5V
+0.5V
V
OL
V
V
CC
OL
470
X2*
TO UART
CIRCUIT
X1
SD00704
SC28L91
Product data sheet
SD00136