参数资料
型号: SC28C94A1A,512
厂商: NXP Semiconductors
文件页数: 25/39页
文件大小: 0K
描述: IC UART QUAD W/FIFO 52-PLCC
产品培训模块: Stand-Alone UARTs
标准包装: 23
特点: 故障启动位检测
通道数: 4,QUART
FIFO's: 8 字节
电源电压: 5V
带自动流量控制功能:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
安装类型: 表面贴装
封装/外壳: 52-LCC(J 形引线)
供应商设备封装: 52-PLCC(19.2x19.2)
包装: 管件
产品目录页面: 828 (CN2011-ZH PDF)
其它名称: 568-3993-5
935262534512
SC28C94A1A
SC28C94A1A-ND
Philips Semiconductors
Product data sheet
SC28C94
Quad universal asynchronous receiver/transmitter (QUART)
2006 Aug 09
31
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
tCLK
tCTC
tRx
tTx
tCLK
tCTC
tRx
tTx
+5V
1K required for
TTL gate.
X1
X2
C1 = C2 = 24pF FOR CL = 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
FREQUENCY:
2 – 4MHZ
LOAD CAPACITANCE (CL):
12 – 32pF
TYPE OF OPERATION:
PARALLEL RESONANT, FUNDAMENTAL MODE
NC
C1
C2
MUX
To
remainder
of circuit
÷ 2
38.4kHz CLOCK
BRG
TO I/O CHANGE-OF-STATE DETECTORS
22
STANDARD
BAUD
RATES
SD00172
POWER DOWN
Figure 13. Clock Timing
TxC
(INPUT)
TxD
TxC
(1X OUTPUT)
1 BIT TIME
(1 OR 16 CLOCKS
tTCS
tTXD
SD00173
Figure 14. Transmit Clock Timing
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