SC26C92C1B,557 NXP Semiconductors, SC26C92C1B,557 Datasheet - Page 4

• Manufacturer Part Number: SC26C92C1B,557
• Description: IC UART DUAL W/FIFO 44PQFP
• Manufacturer: NXP Semiconductors

Specifications of SC26C92C1B,557

• Features: Transceiver
• Number Of Channels: 2, DUART
• Fifo's: 8 Byte
• Voltage - Supply: 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: 935248790557; SC26C92C1B; SC26C92C1B

Philips Semiconductors
BLOCK DIAGRAM
2000 Jan 31
Dual universal 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
CTPL
CTPL
CSRA
IMR
ACR
ISR
U
Figure 2. Block Diagram
4
8 BYTE TRANSMIT
WATCH DOG TIMER
SHIFT REGISTER
8 BYTE RECEIVE
SELECT LOGIC
DETECTORS (4)
RECEIVE SHIFT
OUTPUT PORT
CHANNEL A
CHANNEL B
(AS ABOVE)
INPUT PORT
CHANGE OF
FUNCTION
TRANSMIT
REGISTER
MRA0, 1, 2
STATE
OPCR
FIFO
FIFO
OPR
CRA
SRA
IPCR
ACR
7
8
Product specification
SC26C92
SD00153
TxDA
RxDA
TxDB
RxDB
IP0-IP6
OP0-OP7
V
V
CC
SS