SCC68681E1A44-S NXP Semiconductors, SCC68681E1A44-S Datasheet - Page 5

• Manufacturer Part Number: SCC68681E1A44-S
• Description: UART Interface IC RPLCMNT FOR SCN68681
• Manufacturer: NXP Semiconductors
• Type: Dual asynchronous receiver/transmitter (DUART)r

Specifications of SCC68681E1A44-S

• Product Category: UART Interface IC
• Rohs: yes
• Number Of Channels: 2
• Data Rate: 115.2 Kbps
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 4.5 V
• Supply Current: 10 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: PLCC-44
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Factory Pack Quantity: 26
• Part # Aliases: SCC68681E1A44,529

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