SCC68681E1N40,112 NXP Semiconductors, SCC68681E1N40,112 Datasheet - Page 5
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SCC68681E1N40,112
Manufacturer Part Number
SCC68681E1N40,112
Description
IC DUART 40DIP
Manufacturer
NXP Semiconductors
Datasheet
1.SCC68681C1A44512.pdf
(29 pages)
Specifications of SCC68681E1N40,112
Features
False-start Bit Detection
Number Of Channels
2, DUART
Fifo's
3Bit
Voltage - Supply
5V
With Auto Flow Control
Yes
With False Start Bit Detection
Yes
With Cmos
Yes
Mounting Type
Through Hole
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935274495112
SCC68681E1N40
SCC68681E1N40
SCC68681E1N40
SCC68681E1N40
Philips Semiconductors
BLOCK DIAGRAM
2004 Apr 06
Dual asynchronous receiver/transmitter (DUART)
DTACKN
RESETN
X1/CLK
IACKN
INTRN
D0–D7
A1–A4
R/WN
CSN
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
IVR
U
Figure 2. Block Diagram
5
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
STATE
OPCR
MR1, 2
OPR
CRA
SRA
IPCR
ACR
6
8
SCC68681
SD00108
TxDA
RxDA
TxDB
RxDB
IP0-IP5
OP0-OP7
V
GND
Product data
CC