參數(shù)資料
型號(hào): SC28C94
廠商: NXP Semiconductors N.V.
英文描述: Quad universal asynchronous receiver/transmitter QUART
中文描述: 四通用異步接收器/發(fā)送器夸脫
文件頁(yè)數(shù): 30/38頁(yè)
文件大?。?/td> 230K
代理商: SC28C94
Philips Semiconductors
Product specification
SC28C94
Quad universal asynchronous receiver/transmitter (QUART)
1998 Aug 19
30
C1 and C2 should be chosen according to the
crystal manufacturer’s specification.
C1 and C2 values will include any parasitic
capacitance of the wiring.
X1/CLK
CTCLK
RxC
TxC
t
CLK
t
CTC
t
Rx
t
Tx
t
CLK
t
CTC
t
Rx
t
Tx
+5V
1K required for
TTL gate.
X1
X2
C1 = C2 = 24pF FOR C
L
= 20PF
X1
X2
3.6864MHz
3pF
4pF
50 KOHMs
TO
150 KOHMs
26C94
NOTES:
C1 and C2 should be based on manufacturer’s specification.
X1 and X2 parasitic capacitance IS 1-2pF AND 3-5pF, respectively.
GAIN:
at 4MHz 8 to 14db; at 8MHz 2 to 6db
PHASE: at 4MHz 272
°
to 276
°
; at 8MHz 272
°
to 276
°
TYPICAL CRYSTAL SPECIFICATION
2 – 4MHZ
12 – 32pF
PARALLEL RESONANT, FUNDAMENTAL MODE
FREQUENCY:
LOAD CAPACITANCE (C
L
):
TYPE OF OPERATION:
NC
C1
C2
MUX
To
remainder
of circuit
÷
2
38.4kHz CLOCK
BRG
TO I/O CHANGE-OF-STATE DETECTORS
22
STANDARD
RATES
SD00172
POWER DOWN
Figure 14. Clock Timing
TxC
(INPUT)
TxD
TxC
(1X OUTPUT)
1 BIT TIME
(1 OR 16 CLOCKS
t
TCS
t
TXD
SD00173
Figure 15. Transmit Clock Timing
相關(guān)PDF資料
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SC28C94A1A 功能描述:UART 接口集成電路 UART QUAD W/FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
SC28C94A1A,512 功能描述:UART 接口集成電路 UART QUAD W/FIFO RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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