參數(shù)資料
型號(hào): SCN2681AC1A44
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 微控制器/微處理器
英文描述: RB Series - Econoline Unregulated DC-DC Converters; Input Voltage (Vdc): 12V; Output Voltage (Vdc): 3.3V; Power: 1W; Low Cost 1W Converter; Power Sharing on Dual Output Version; Industry Standard Pinout; 1kVDC & 2kVDC Isolation Options; Optional Continuous Short Circuit Protected; UL94V-0 Package Material; Efficiency to 85%
中文描述: 2 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, PQCC44
封裝: PLASTIC, MO-047AC, SOT-187-2, LCC-44
文件頁(yè)數(shù): 19/30頁(yè)
文件大?。?/td> 205K
代理商: SCN2681AC1A44
Philips Semiconductors
Product specification
SCN2681
Dual asynchronous receiver/transmitter (DUART)
1998 Sep 04
19
TIMING DIAGRAMS
RESET
t
RES
SD00086
Figure 3. Reset Timing
A0–A3
CEN
t
AS
t
CS
t
CH
RDN
t
RW
t
RWD
D0–D7
(READ)
t
DD
t
DF
FLOAT
FLOAT
VALID
NOT
VALID
WDN
t
RWD
VALID
D0–D7
(WRITE)
t
DS
t
DH
t
AH
SD00087
Figure 4. Bus Timing
RDN
IP0–IP6
WRN
OP0–OP7
t
PS
t
PH
t
PD
OLD DATA
NEW DATA
V
M
V
OH
V
OL
V
M
= 1.5V
SD00089
Figure 5. Port Timing
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