SCC2681TC1A44-S NXP Semiconductors, SCC2681TC1A44-S Datasheet - Page 3
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SCC2681TC1A44-S
Manufacturer Part Number
SCC2681TC1A44-S
Description
Manufacturer
NXP Semiconductors
Datasheet
1.SCC2681TC1A44-S.pdf
(15 pages)
Specifications of SCC2681TC1A44-S
Transmitter And Receiver Fifo Counter
No
Operating Supply Voltage (typ)
5V
Package Type
PLCC
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Mounting
Surface Mount
Pin Count
44
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Supply Current
10mA
Number Of Channels
2
Lead Free Status / RoHS Status
Compliant
Refer to SCC2681 for functional description.
Philips Semiconductors
BLOCK DIAGRAM
NOTE:
2004 Apr 06
Dual asynchronous receiver/transmitter (DUART)
X1/CLK
RESET
INTRN
D0–D7
A0–A3
WRN
CEN
RDN
X2
4
8
OPERATION CONTROL
INTERRUPT CONTROL
R/W CONTROL
BUS BUFFER
GENERATOR
SELECTORS
BAUD RATE
COUNTER/
XTAL OSC
ADDRESS
DECODE
CLOCK
TIMING
TIMER
CSRB
CTLR
CTLR
CSRA
IMR
ACR
ISR
U
Figure 1. Block Diagram
3
SHIFT REGISTER
HOLDING REG (3)
SHIFT REGISTER
SELECT LOGIC
DETECTORS (4)
HOLDING REG
OUTPUT PORT
CHANNEL A
CHANNEL B
(AS ABOVE)
INPUT PORT
CHANGE OF
FUNCTION
TRANSMIT
TRANSMIT
RECEIVE
RECEIVE
MRA1, 2
STATE
OPCR
OPR
CRA
SRA
IPCR
ACR
7
8
SCC2681T
SD00099
TxDA
RxDA
TxDB
RxDB
IP0-IP6
OP0-OP7
V
GND
Product data
CC