參數(shù)資料
型號: SCC2681AE1N28,112
廠商: NXP Semiconductors
文件頁數(shù): 27/29頁
文件大?。?/td> 0K
描述: IC DUART 28-DIP
標準包裝: 13
特點: 故障啟動位檢測
通道數(shù): 2,DUART
FIFO's: 3 位
電源電壓: 5V
帶并行端口:
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶CMOS:
安裝類型: 通孔
封裝/外殼: 28-DIP(0.600",15.24mm)
供應商設備封裝: 28-DIP
包裝: 管件
其它名稱: 935274498112
SCC2681AE1N28
SCC2681AE1N28-ND
Philips Semiconductors
Product data
SCC2681
Dual asynchronous receiver/transmitter (DUART)
2004 Apr 06
7
8. Consecutive write operations to the same command register require at least three edges of the X1 clock between writes.
9. This parameter is not applicable to the 28-pin device.
10. Operation to 0 MHz is assured by design. However, operation at low frequencies is not tested and has not been characterized.
BLOCK DIAGRAM
8
D0–D7
RDN
WRN
CEN
A0–A3
RESET
INTRN
X1/CLK
X2
4
BUS BUFFER
OPERATION CONTROL
ADDRESS
DECODE
R/W CONTROL
INTERRUPT CONTROL
IMR
ISR
TIMING
BAUD RATE
GENERATOR
CLOCK
SELECTORS
COUNTER/
TIMER
XTAL OSC
CSRA
CSRB
ACR
CTUR
CHANNEL A
TRANSMIT
HOLDING REG
TRANSMIT
SHIFT REGISTER
RECEIVE
HOLDING REG (3)
RECEIVE
SHIFT REGISTER
MRA1, 2
CRA
SRA
INPUT PORT
CHANGE OF
STATE
DETECTORS (4)
OUTPUT PORT
FUNCTION
SELECT LOGIC
OPCR
TxDA
RxDA
IP0-IP6
OP0-OP7
VCC
GND
CONTROL
TIMING
INTERNAL
DA
T
ABUS
CHANNEL B
(AS ABOVE)
IPCR
ACR
OPR
CTLR
RxDB
TxDB
8
7
SD00085
Figure 2. Block Diagram
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